Merge pull request 'feat: ✨ version number links to releases' (#54) from v2.0.1 into main

Reviewed-on: http://git.jdbnet.co.uk/jamie/ipam/pulls/54

.gitea/workflows/release.yml

@@ -31,6 +31,7 @@ jobs:
         run: |
           VERSION=${{ steps.get_version.outputs.VERSION }}
           docker build -t cr.jdbnet.co.uk/public/ipam:$VERSION \
+                       -t cr.jdbnet.co.uk/public/ipam:v2 \
                        -t cr.jdbnet.co.uk/public/ipam:latest \
                        --build-arg VERSION=$VERSION \
                        .

API.md

@@ -21,26 +21,50 @@ All endpoints are JSON under `/api/v2`. The Vue SPA uses **session cookies** (`c
 | POST | `/api/v2/account/disable-2fa` |
 | POST | `/api/v2/account/regenerate-backup-codes` |
 
-## Core resources
+## List response format
 
-List endpoints return `{ "items": [...] }` unless noted.
+List endpoints return `{ "items": [...] }`. Exceptions:
+
+- **Audit log** — `{ "items": [...], "total": N }` (supports pagination)
+- **Devices by tag** — `{ "items": [...], "meta": { "tag_name", "count" } }`
+- **Single resources** (device, subnet, rack) — flat object, not wrapped in `items`
+
+## Core resources
 
 | Resource | Endpoints |
 |----------|-----------|
 | Dashboard | `GET /api/v2/dashboard` |
 | Search | `GET /api/v2/search?q=` |
 | Devices | CRUD + `/ips`, `/tags`, `/ip-history`, `/custom-fields` |
-| Subnets | CRUD + `/available-ips`, `/export`, `/dhcp`, `/custom-fields` |
+| Subnets | CRUD + `/available-ips`, `/next_free_ip`, `/export`, `/dhcp`, `/custom-fields` |
 | IP addresses | `PATCH /api/v2/ip-addresses/{id}` (notes) |
 | IP history | `GET /api/v2/ips/{ip}/history` |
 | Tags | CRUD + device tag assign/remove |
 | Racks | CRUD + `/devices`, `/export` |
 | Custom fields | CRUD + `POST /custom-fields/reorder` |
-| Audit | `GET /audit`, `GET /audit/export` |
+| Audit | `GET /audit`, `GET /audit/actions`, `GET /audit/export` |
 | Users & roles | CRUD + `POST /users/{id}/regenerate-api-key` |
 | Permissions | `GET /permissions` |
 | Bulk | `POST /bulk/assign-ips`, `/create-devices`, `/assign-tags`, `/export-subnets` |
 
+### Subnet IP helpers
+
+- `GET /api/v2/subnets/{id}/available-ips` — unassigned IPs outside DHCP pools
+- `GET /api/v2/subnets/{id}/next_free_ip` — first available IP (also excludes DHCP pools)
+
+### Audit query parameters
+
+| Param | Description |
+|-------|-------------|
+| `limit` | Page size (default 100) |
+| `offset` | Offset for pagination (default 0) |
+| `user` | Filter by user name (partial match) |
+| `action` | Exact action match (see `GET /audit/actions` for values) |
+| `from` | Start date (`YYYY-MM-DD`) |
+| `to` | End date (`YYYY-MM-DD`) |
+
+Export (`GET /audit/export`) accepts the same filter params.
+
 See route handlers in `app.py` for required permissions and request bodies.
 
 ## Example

HELP.md

@@ -0,0 +1,229 @@
+## Configuration
+
+### Environment Variables
+
+- `MYSQL_HOST`: MySQL/MariaDB host (default: localhost)
+- `MYSQL_USER`: Database user (default: user)
+- `MYSQL_PASSWORD`: Database password (default: password)
+- `MYSQL_DATABASE`: Database name (default: ipam)
+- `SECRET_KEY`: Flask secret key for sessions (**REQUIRED in production!**)
+- `NAME`: Organisation name displayed in header (default: JDB-NET)
+- `LOGO_PNG`: URL or path to organisation logo (default: JDB-NET logo)
+
+### Database Setup
+
+The application automatically initializes the database schema on first run. Ensure the database and user exist with appropriate 
+permissions:
+
+```sql
+CREATE DATABASE ipam;
+CREATE USER 'ipam'@'%' IDENTIFIED BY 'your_password';
+GRANT ALL PRIVILEGES ON ipam.* TO 'ipam'@'%';
+FLUSH PRIVILEGES;
+```
+
+### Upgrading from v1.x
+
+See [v1-to-v2-breaking-changes.md](v1-to-v2-breaking-changes.md) for removed features, route changes, and automatic database migrations. 
+Back up your database before upgrading.
+
+## Usage
+
+### First Login
+
+1. Access the web interface at `http://your-server:5000`
+2. Log in with the default credentials:
+   - Email: `admin@example.com`
+   - Password: `password`
+3. **Change the default password immediately** via the Users page
+
+### Managing Subnets
+
+1. Navigate to **Subnet Management** from the main menu (`/subnets/manage`)
+2. Click **Add Subnet** and fill in:
+   - **Name**: Friendly name for the subnet (e.g., "Office LAN")
+   - **CIDR**: Subnet in CIDR notation (e.g., `192.168.1.0/24`)
+   - **Site**: Site/location identifier
+3. The system automatically generates all IP addresses in the subnet
+
+### Adding Devices
+
+1. Navigate to "Devices" from the main menu
+2. Click "Add Device"
+3. Enter device name (and optional description)
+4. Click "Create Device"
+
+### Assigning IP Addresses to Devices
+
+1. Open a device from the Devices page
+2. Select a subnet and available IP address
+3. Click "Assign IP" - the hostname is automatically updated
+
+### Configuring DHCP Pools
+
+1. Open a subnet from the dashboard or subnet list
+2. Click **DHCP** to open the DHCP pool modal
+3. Set the start and end IP addresses
+4. Optionally specify excluded IPs (comma-separated)
+5. IPs within the pool range are automatically marked as "DHCP"
+
+### Managing Racks
+
+1. Navigate to "Racks" from the main menu
+2. Click "Add Rack" and specify:
+   - **Name**: Rack identifier
+   - **Site**: Site location
+   - **Height**: Rack height in U units
+3. Open a rack to assign devices to specific U positions (front or back)
+
+### Device Tagging
+
+1. **Managing Tags** (requires `add_tag` / `edit_tag` / `delete_tag` permissions):
+   - Navigate to **Tags** from the main menu
+   - Create tags with custom colours and descriptions
+   - Edit or delete existing tags as permitted by your role
+
+2. **Assigning Tags to Devices**:
+   - Open any device from the Devices page
+   - Use the tag assignment dropdown to add multiple tags
+   - Remove tags by clicking the × button next to the tag name
+
+3. **Filtering by Tags**:
+   - Use the tag filter dropdown on the Devices page to view devices with specific tags
+   - Tags appear as colored badges throughout the interface for easy identification
+
+### Audit Log
+
+View changes in **Audit Log**. Filter by user name, action type, and date range. Export filtered results to CSV.
+
+### Exporting Data
+
+- **Subnet CSV**: Click "Export CSV" on any subnet page to download IP addresses with hostnames
+- **Rack CSV**: Click "Export CSV" on any rack page to download rack layout information
+
+### Role-Based Access Control
+
+The system uses a granular role-based access control (RBAC) system to manage user permissions:
+
+1. **Default Roles**:
+   - **Admin**: Full access to all features including user and role management
+   - **User**: Can view and manage most features (devices, subnets, racks, etc.) but cannot manage users or roles
+   - **View Only**: Read-only access to view pages but cannot make any changes
+
+2. **Custom Roles**: Administrators can create custom roles with specific permission sets from the Users page
+
+3. **Permission Granularity**: Permissions are organized into categories:
+   - View permissions (access to pages)
+   - Device Management (add, edit, delete devices)
+   - Network Management (subnet operations)
+   - Rack Management (rack operations)
+   - DHCP Configuration
+   - Administration (user and role management)
+
+4. **User Management**: Navigate to the Users page to:
+   - Create and manage users
+   - Assign roles to users
+   - Create custom roles with specific permissions
+   - View and regenerate API keys
+
+### REST API
+
+Programmatic access uses **`/api/v2`**. The browser SPA uses session cookies; automation uses API keys via:
+
+- `X-API-Key` header
+- `Authorization: Bearer <api_key>` header
+- `?api_key=<api_key>` query parameter
+
+Each user has an API key (view/regenerate on the Users page). Keys respect the same RBAC permissions as the web UI.
+
+Full endpoint reference: [API.md](API.md)
+
+```bash
+# List devices
+curl -H "X-API-Key: YOUR_KEY" https://your-server:5000/api/v2/devices
+
+# Session login (browser-style)
+curl -c cookies.txt -X POST -H "Content-Type: application/json" \
+  -d '{"email":"admin@example.com","password":"password"}' \
+  https://your-server:5000/api/v2/auth/login
+```
+
+## Kubernetes Deployment
+
+Example deployment manifest:
+
+```yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ipam
+  namespace: ipam
+spec:
+  replicas: 1
+  template:
+    spec:
+      containers:
+      - name: ipam
+        image: cr.jdbnet.co.uk/public/ipam:latest
+        ports:
+        - containerPort: 5000
+        env:
+        - name: SECRET_KEY
+          valueFrom:
+            secretKeyRef:
+              name: ipam-secrets
+              key: secret-key
+        - name: MYSQL_HOST
+          value: "mysql-service"
+        - name: MYSQL_USER
+          value: "ipam"
+        - name: MYSQL_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: ipam-secrets
+              key: mysql-password
+        - name: MYSQL_DATABASE
+          value: "ipam"
+```
+
+## Security Notes
+
+- **CHANGE THE DEFAULT ADMIN PASSWORD** immediately after first login
+- **CHANGE THE SECRET_KEY** in production - use a strong random string (e.g., `openssl rand -hex 32`)
+- Use strong passwords for database access
+- Ensure database connections are secured (consider SSL/TLS for MySQL connections)
+- Review audit logs regularly for unauthorized changes
+- Limit database user permissions if possible (though CREATE/ALTER may be needed for schema initialization)
+- **API Keys**: Keep API keys secure and never share them publicly. Regenerate keys if they may have been compromised
+- **Role-Based Access**: Use the RBAC system to grant users only the permissions they need (principle of least privilege)
+- **HTTPS**: Use HTTPS in production to protect API keys and session data in transit
+
+## Troubleshooting
+
+### Database Connection Issues
+
+- Ensure MySQL/MariaDB is running and accessible from the container
+- Check database credentials in environment variables
+- Verify database and user exist with proper permissions
+- Check network connectivity between container and database
+- Ensure the database name matches exactly (case-sensitive on some systems)
+
+### Application Not Starting
+
+- Check container logs: `docker logs ipam`
+- Verify all required environment variables are set
+- Ensure port 5000 is not already in use
+- Check that MySQL/MariaDB is reachable
+
+### Subnet or IP Not Appearing
+
+- Verify CIDR notation is correct (supports /24 to /32)
+- Check subnet was created successfully (Subnet Management page)
+- Ensure you're logged in with appropriate permissions
+- Check application logs for errors
+
+### Device IP Assignment Issues
+
+- Verify the IP address is available (not already assigned)
+- Check that the IP is not in a DHCP pool range
+- Ensure the device exists and is visible in the Devices list

README.md

@@ -4,57 +4,25 @@
   # IP Address Management
 </div>
 
-A Flask-based web application for comprehensive IP Address Management (IPAM). Manage subnets, IP addresses, devices, DHCP pools, and physical rack infrastructure with an intuitive web interface.
+A Flask-based web application for IP Address Management (IPAM). Manage subnets, IP addresses, devices, DHCP pools, and rack infrastructure through a Vue 3 web interface and a JSON REST API.
 
 ## Features
 
-- **Subnet Management**: Create and manage IP subnets with CIDR notation (supports /24 to /32)
+- **Subnet management** - CIDR subnets with automatic IP generation
-- **IP Address Tracking**: Automatic IP address generation and tracking for each subnet
+- **IP assignment** - Assign addresses to devices with hostname tracking
-- **Device Management**: Track devices with types (Server, VM, Switch, Firewall, WiFi AP, Printer, Other)
+- **Device management** - Names, descriptions, tags, and custom fields
-- **Device Tagging**: Organize devices with customizable tags featuring colors and descriptions
+- **DHCP pools** — Configure ranges and excluded IPs per subnet
-- **IP Assignment**: Assign IP addresses to devices with automatic hostname updates
+- **Rack management** - U positions with front/back layout
-- **DHCP Pool Configuration**: Configure DHCP pools with start/end IP ranges and excluded IPs
+- **Site organisation** - Group subnets and devices by location
-- **Rack Management**: Physical infrastructure tracking with U positions and front/back sides
+- **Audit logging** - Filterable change history with CSV export
-- **Site Organisation**: Organize subnets and devices by site/location
+- **Role-based access control** - Granular permissions and custom roles
-- **Audit Logging**: Complete audit trail of all changes with user, action, details, and timestamps
+- **REST API v2** - Session cookies for the browser, API keys for automation
-- **User Management**: Multi-user support with secure password authentication
-- **Role-Based Access Control (RBAC)**: Granular permission system with default roles (admin, user, view_only) and custom role creation
-- **Web Interface**: Vue 3 SPA with automatic light/dark theme and mobile-first layout
-- **REST API v2**: JSON API at `/api/v2` (session cookies for browser, API keys for automation)
 
-## Local development
+## Screenshot
 
-```bash
+![IPAM Dashboard](img/screenshot.png)
-# Backend
-pip install -r requirements.txt
-./run.sh   # builds frontend if needed, starts Flask on :5000
 
-# Frontend hot reload (optional)
+## Docker Compose
-cd frontend && npm install && npm run dev
-# Vite proxies /api to http://127.0.0.1:5000
-```
-
-API reference: [API.md](API.md)
-
-## Quick Start with Docker
-
-### Docker Run
-
-```bash
-docker run -d \
-  --name ipam \
-  -p 5000:5000 \
-  -e MYSQL_HOST=10.10.2.27 \
-  -e MYSQL_USER=ipam \
-  -e MYSQL_PASSWORD=your_password \
-  -e MYSQL_DATABASE=ipam \
-  -e SECRET_KEY=your_secret_key \
-  -e NAME="Your Organisation" \
-  -e LOGO_PNG="https://example.com/logo.png" \
-  cr.jdbnet.co.uk/public/ipam:latest
-```
-
-### Docker Compose
 
 ```yaml
 services:
@@ -73,256 +41,3 @@ services:
       - NAME=Your Organisation
       - LOGO_PNG=https://example.com/logo.png
 ```
-
-## Configuration
-
-### Environment Variables
-
-- `MYSQL_HOST`: MySQL/MariaDB host (default: localhost)
-- `MYSQL_USER`: Database user (default: user)
-- `MYSQL_PASSWORD`: Database password (default: password)
-- `MYSQL_DATABASE`: Database name (default: ipam)
-- `SECRET_KEY`: Flask secret key for sessions (**REQUIRED in production!**)
-- `NAME`: Organisation name displayed in header (default: JDB-NET)
-- `LOGO_PNG`: URL or path to organisation logo (default: JDB-NET logo)
-
-### Database Setup
-
-The application automatically initializes the database schema on first run. Ensure the database and user exist with appropriate permissions:
-
-```sql
-CREATE DATABASE ipam;
-CREATE USER 'ipam'@'%' IDENTIFIED BY 'your_password';
-GRANT ALL PRIVILEGES ON ipam.* TO 'ipam'@'%';
-FLUSH PRIVILEGES;
-```
-
-### Upgrading from v1.x
-
-See [v1-to-v2-breaking-changes.md](v1-to-v2-breaking-changes.md) for removed features, route changes, and automatic database migrations. Back up your database before upgrading.
-
-## Usage
-
-### First Login
-
-1. Access the web interface at `http://your-server:5000`
-2. Log in with the default credentials:
-   - Email: `admin@example.com`
-   - Password: `password`
-3. **Change the default password immediately** via the Users page
-
-### Managing Subnets
-
-1. Navigate to "Admin" from the main menu
-2. Click "Add Subnet" and fill in:
-   - **Name**: Friendly name for the subnet (e.g., "Office LAN")
-   - **CIDR**: Subnet in CIDR notation (e.g., `192.168.1.0/24`)
-   - **Site**: Site/location identifier
-3. The system automatically generates all IP addresses in the subnet
-
-### Adding Devices
-
-1. Navigate to "Devices" from the main menu
-2. Click "Add Device"
-3. Enter device name (and optional description)
-4. Click "Create Device"
-
-### Assigning IP Addresses to Devices
-
-1. Open a device from the Devices page
-2. Select a subnet and available IP address
-3. Click "Assign IP" - the hostname is automatically updated
-
-### Configuring DHCP Pools
-
-1. Open a subnet view
-2. Click "Configure DHCP Pool"
-3. Set the start and end IP addresses
-4. Optionally specify excluded IPs (comma-separated)
-5. IPs within the pool range are automatically marked as "DHCP"
-
-### Managing Racks
-
-1. Navigate to "Racks" from the main menu
-2. Click "Add Rack" and specify:
-   - **Name**: Rack identifier
-   - **Site**: Site location
-   - **Height**: Rack height in U units
-3. Open a rack to assign devices to specific U positions (front or back)
-
-### Device Tagging
-
-1. **Managing Tags** (Admin only):
-   - Navigate to "Admin" > "Tag Management"
-   - Click "Add Tag" to create new tags with custom colors and descriptions
-   - Edit or delete existing tags as needed
-
-2. **Assigning Tags to Devices**:
-   - Open any device from the Devices page
-   - Use the tag assignment dropdown to add multiple tags
-   - Remove tags by clicking the × button next to the tag name
-
-3. **Filtering by Tags**:
-   - Use the tag filter dropdown on the Devices page to view devices with specific tags
-   - Tags appear as colored badges throughout the interface for easy identification
-
-### Audit Log
-
-View all changes and actions in the "Audit Log" section, with filtering by user, subnet, action type, or device name.
-
-### Exporting Data
-
-- **Subnet CSV**: Click "Export CSV" on any subnet page to download IP addresses with hostnames
-- **Rack CSV**: Click "Export CSV" on any rack page to download rack layout information
-
-### Role-Based Access Control
-
-The system uses a granular role-based access control (RBAC) system to manage user permissions:
-
-1. **Default Roles**:
-   - **Admin**: Full access to all features including user and role management
-   - **User**: Can view and manage most features (devices, subnets, racks, etc.) but cannot manage users or roles
-   - **View Only**: Read-only access to view pages but cannot make any changes
-
-2. **Custom Roles**: Administrators can create custom roles with specific permission sets from the Users page
-
-3. **Permission Granularity**: Permissions are organized into categories:
-   - View permissions (access to pages)
-   - Device Management (add, edit, delete devices)
-   - Network Management (subnet operations)
-   - Rack Management (rack operations)
-   - DHCP Configuration
-   - Administration (user and role management)
-
-4. **User Management**: Navigate to the Users page to:
-   - Create and manage users
-   - Assign roles to users
-   - Create custom roles with specific permissions
-   - View and regenerate API keys
-
-### REST API
-
-The application includes a comprehensive REST API for programmatic access:
-
-1. **Authentication**: All API requests require an API key, which can be provided via:
-   - `X-API-Key` header
-   - `Authorization: Bearer <api_key>` header
-   - `?api_key=<api_key>` query parameter
-
-2. **Base URL**: All API endpoints are prefixed with `/api/v1`
-
-3. **Available Endpoints**:
-   - **Devices**: `GET`, `POST`, `PUT`, `DELETE /api/v1/devices`
-   - **Device Tags**: `GET /api/v1/devices/by-tag/{tag}` (filter devices by tag)
-   - **Tags**: `GET`, `POST`, `PUT`, `DELETE /api/v1/tags` (with `?format=simple` option)
-   - **Tag Assignment**: `GET`, `POST /api/v1/devices/{id}/tags`, `DELETE /api/v1/devices/{id}/tags/{tag_id}`
-   - **Subnets**: `GET`, `POST`, `PUT`, `DELETE /api/v1/subnets`
-   - **Racks**: `GET`, `POST`, `DELETE /api/v1/racks`
-   - **DHCP**: `GET`, `POST /api/v1/subnets/{id}/dhcp`
-   - **Audit Log**: `GET /api/v1/audit`
-   - **Users & Roles**: `GET /api/v1/users`, `GET /api/v1/roles` (admin only)
-
-4. **API Keys**: Each user has a unique API key that can be viewed and regenerated from the Users page. API keys respect the same role-based permissions as the web interface.
-
-5. **Documentation**: See [API.md](API.md) for the full REST API reference.
-
-**Example API Requests**:
-```bash
-# List all devices
-curl -H "X-API-Key: your_api_key" \
-     https://your-server:5000/api/v1/devices
-
-# Get devices with a specific tag
-curl -H "X-API-Key: your_api_key" \
-     https://your-server:5000/api/v1/devices/by-tag/production
-
-# List all tags in simple format
-curl -H "X-API-Key: your_api_key" \
-     https://your-server:5000/api/v1/tags?format=simple
-```
-
-## Kubernetes Deployment
-
-The project includes a Kubernetes deployment manifest. See `deployment.yml` for details.
-
-**Example Kubernetes deployment:**
-
-```yaml
-apiVersion: apps/v1
-kind: Deployment
-metadata:
-  name: ipam
-  namespace: ipam
-spec:
-  replicas: 1
-  template:
-    spec:
-      containers:
-      - name: ipam
-        image: cr.jdbnet.co.uk/public/ipam:latest
-        ports:
-        - containerPort: 5000
-        env:
-        - name: SECRET_KEY
-          valueFrom:
-            secretKeyRef:
-              name: ipam-secrets
-              key: secret-key
-        - name: MYSQL_HOST
-          value: "mysql-service"
-        - name: MYSQL_USER
-          value: "ipam"
-        - name: MYSQL_PASSWORD
-          valueFrom:
-            secretKeyRef:
-              name: ipam-secrets
-              key: mysql-password
-        - name: MYSQL_DATABASE
-          value: "ipam"
-```
-
-## Security Notes
-
-- **CHANGE THE DEFAULT ADMIN PASSWORD** immediately after first login
-- **CHANGE THE SECRET_KEY** in production - use a strong random string (e.g., `openssl rand -hex 32`)
-- Use strong passwords for database access
-- Ensure database connections are secured (consider SSL/TLS for MySQL connections)
-- Review audit logs regularly for unauthorized changes
-- Limit database user permissions if possible (though CREATE/ALTER may be needed for schema initialization)
-- **API Keys**: Keep API keys secure and never share them publicly. Regenerate keys if they may have been compromised
-- **Role-Based Access**: Use the RBAC system to grant users only the permissions they need (principle of least privilege)
-- **HTTPS**: Use HTTPS in production to protect API keys and session data in transit
-
-## Troubleshooting
-
-### Database Connection Issues
-
-- Ensure MySQL/MariaDB is running and accessible from the container
-- Check database credentials in environment variables
-- Verify database and user exist with proper permissions
-- Check network connectivity between container and database
-- Ensure the database name matches exactly (case-sensitive on some systems)
-
-### Application Not Starting
-
-- Check container logs: `docker logs ipam`
-- Verify all required environment variables are set
-- Ensure port 5000 is not already in use
-- Check that MySQL/MariaDB is reachable
-
-### Subnet or IP Not Appearing
-
-- Verify CIDR notation is correct (supports /24 to /32)
-- Check subnet was created successfully (view in Admin page)
-- Ensure you're logged in with appropriate permissions
-- Check application logs for errors
-
-### Device IP Assignment Issues
-
-- Verify the IP address is available (not already assigned)
-- Check that the IP is not in a DHCP pool range
-- Ensure the device exists and is visible in the Devices list
-
-## License
-
-This project is provided as-is for IP Address Management.

app.py

@@ -38,7 +38,7 @@ app.config['MYSQL_DATABASE'] = os.environ.get('MYSQL_DATABASE', 'ipam')
 app.config['SESSION_COOKIE_HTTPONLY'] = True
 app.config['SESSION_COOKIE_SAMESITE'] = 'Lax'
 app.config['NAME'] = os.environ.get('NAME', 'JDB-NET')
-app.config['LOGO_PNG'] = os.environ.get('LOGO_PNG', 'https://assets.jdbnet.co.uk/logo/128x128.png')
+app.config['LOGO_PNG'] = os.environ.get('LOGO_PNG', 'https://assets.jdbnet.co.uk/projects/ipam.png')
 app.config['VERSION'] = os.environ.get('VERSION', 'unknown')
 
 from db import init_db, hash_password, get_db_connection, verify_password, generate_api_key
@@ -259,6 +259,30 @@ def items_response(items):
     return jsonify({'items': items})
 
 
+def build_audit_filters():
+    """Build WHERE clause and params for audit log queries from request args."""
+    clauses = []
+    params = []
+    user = request.args.get('user', '').strip()
+    if user:
+        clauses.append('u.name LIKE %s')
+        params.append(f'%{user}%')
+    action = request.args.get('action', '').strip()
+    if action:
+        clauses.append('al.action = %s')
+        params.append(action)
+    from_date = request.args.get('from', '').strip()
+    if from_date:
+        clauses.append('al.timestamp >= %s')
+        params.append(f'{from_date} 00:00:00')
+    to_date = request.args.get('to', '').strip()
+    if to_date:
+        clauses.append('al.timestamp <= %s')
+        params.append(f'{to_date} 23:59:59')
+    where_sql = ('WHERE ' + ' AND '.join(clauses)) if clauses else ''
+    return where_sql, params
+
+
 def get_current_user_id():
     user = current_user()
     return user['id'] if user else session.get('user_id')
@@ -1073,7 +1097,7 @@ def enrich_devices_batch(cursor, devices):
     placeholders = ','.join(['%s'] * len(device_ids))
 
     cursor.execute(f'''
-        SELECT dia.device_id, ip.id, ip.ip, ip.hostname, s.id as subnet_id, s.name as subnet_name, s.cidr, s.site
+        SELECT dia.device_id, ip.id, ip.ip, ip.hostname, ip.notes, s.id as subnet_id, s.name as subnet_name, s.cidr, s.site
         FROM DeviceIPAddress dia
         JOIN IPAddress ip ON dia.ip_id = ip.id
         JOIN Subnet s ON ip.subnet_id = s.id
@@ -1484,7 +1508,7 @@ def api_device(device_id):
         if not device:
             return jsonify({'error': 'Device not found'}), 404
         cursor.execute('''
-            SELECT ip.id, ip.ip, ip.hostname, s.id as subnet_id, s.name as subnet_name, s.cidr, s.site
+            SELECT ip.id, ip.ip, ip.hostname, ip.notes, s.id as subnet_id, s.name as subnet_name, s.cidr, s.site
             FROM DeviceIPAddress dia
             JOIN IPAddress ip ON dia.ip_id = ip.id
             JOIN Subnet s ON ip.subnet_id = s.id
@@ -1704,20 +1728,20 @@ def api_subnet_next_free_ip(subnet_id):
         if not cursor.fetchone():
             return jsonify({'error': 'Subnet not found'}), 404
         
-        # Find the first IP in the subnet that is not assigned to any device
+        # Find the first unassigned IP outside DHCP pools
         cursor.execute('''
             SELECT ip.id, ip.ip
             FROM IPAddress ip
             LEFT JOIN DeviceIPAddress dia ON ip.id = dia.ip_id
             WHERE ip.subnet_id = %s AND dia.ip_id IS NULL
             ORDER BY INET_ATON(ip.ip)
-            LIMIT 1
         ''', (subnet_id,))
-        result = cursor.fetchone()
+        ips = [{'id': r['id'], 'ip': r['ip']} for r in cursor.fetchall()]
-        if not result:
+        ips = filter_ips_outside_dhcp(cursor, subnet_id, ips)
+        if not ips:
             return jsonify({'error': 'No free IP addresses available in this subnet'}), 404
 
-        return jsonify({'id': result['id'], 'ip': result['ip']})
+        return jsonify({'id': ips[0]['id'], 'ip': ips[0]['ip']})
 
 @app.route('/api/v2/subnets', methods=['POST'])
 @require_permission('add_subnet')
@@ -1901,7 +1925,7 @@ def api_racks():
                 ORDER BY rd.position_u, rd.side
             ''', (rack['id'],))
             rack['devices'] = cursor.fetchall()
-    return jsonify({'racks': racks})
+    return items_response(racks)
 
 @app.route('/api/v2/racks/<int:rack_id>', methods=['GET'])
 @require_permission('view_rack')
@@ -2140,7 +2164,7 @@ def api_custom_fields_by_type(entity_type):
                     field['validation_rules'] = json.loads(field['validation_rules'])
                 except (json.JSONDecodeError, TypeError):
                     field['validation_rules'] = {}
-    return jsonify({'fields': fields})
+    return items_response(fields)
 
 @app.route('/api/v2/custom_fields', methods=['POST'])
 @require_permission('manage_custom_fields')
@@ -2327,7 +2351,7 @@ def api_tags():
         for tag in tags:
             cursor.execute('SELECT COUNT(*) as device_count FROM DeviceTag WHERE tag_id = %s', (tag['id'],))
             tag['device_count'] = cursor.fetchone()['device_count']
-    return jsonify({'tags': tags})
+    return items_response(tags)
 
 @app.route('/api/v2/tags', methods=['POST'])
 @require_permission('add_tag')
@@ -2457,7 +2481,7 @@ def api_device_tags(device_id):
             ORDER BY t.name
         ''', (device_id,))
         tags = cursor.fetchall()
-    return jsonify({'tags': tags})
+    return items_response(tags)
 
 @app.route('/api/v2/devices/<int:device_id>/tags', methods=['POST'])
 @require_permission('assign_device_tag')
@@ -2559,7 +2583,7 @@ def api_devices_by_tag(tag_identifier):
         devices = cursor.fetchall()
         
         if not devices:
-            return jsonify({'devices': [], 'tag_name': tag_name, 'count': 0})
+            return jsonify({'items': [], 'meta': {'tag_name': tag_name, 'count': 0}})
         
         if simple_format:
             # Simple format: just name and first IP as clean array
@@ -2588,7 +2612,7 @@ def api_devices_by_tag(tag_identifier):
             # Full format: complete device information
             for device in devices:
                 cursor.execute('''
-                    SELECT ip.id, ip.ip, ip.hostname, s.id as subnet_id, s.name as subnet_name, s.cidr, s.site
+                    SELECT ip.id, ip.ip, ip.hostname, ip.notes, s.id as subnet_id, s.name as subnet_name, s.cidr, s.site
                     FROM DeviceIPAddress dia
                     JOIN IPAddress ip ON dia.ip_id = ip.id
                     JOIN Subnet s ON ip.subnet_id = s.id
@@ -2605,27 +2629,46 @@ def api_devices_by_tag(tag_identifier):
                 ''', (device['id'],))
                 device['tags'] = cursor.fetchall()
                 
-            return jsonify({'devices': devices, 'tag_name': tag_name, 'count': len(devices)})
+            return jsonify({'items': devices, 'meta': {'tag_name': tag_name, 'count': len(devices)}})
 
 # Audit Log API
+@app.route('/api/v2/audit/actions', methods=['GET'])
+@require_permission('view_audit')
+def api_audit_actions():
+    with get_db_connection(current_app) as conn:
+        cursor = conn.cursor()
+        cursor.execute('SELECT DISTINCT action FROM AuditLog ORDER BY action')
+        actions = [row[0] for row in cursor.fetchall()]
+    return items_response(actions)
+
+
 @app.route('/api/v2/audit', methods=['GET'])
 @require_permission('view_audit')
 def api_audit():
     """Get audit log entries"""
     from flask import current_app
-    with get_db_connection(current_app) as conn:
+    where_sql, filter_params = build_audit_filters()
-        cursor = conn.cursor(dictionary=True)
     limit = request.args.get('limit', 100, type=int)
     offset = request.args.get('offset', 0, type=int)
-        cursor.execute('''
+    with get_db_connection(current_app) as conn:
+        cursor = conn.cursor(dictionary=True)
+        cursor.execute(f'''
+            SELECT COUNT(*) as total
+            FROM AuditLog al
+            LEFT JOIN User u ON al.user_id = u.id
+            {where_sql}
+        ''', tuple(filter_params))
+        total = cursor.fetchone()['total']
+        cursor.execute(f'''
             SELECT al.id, al.user_id, u.name as user_name, al.action, al.details, al.subnet_id, al.timestamp
             FROM AuditLog al
             LEFT JOIN User u ON al.user_id = u.id
+            {where_sql}
             ORDER BY al.timestamp DESC
             LIMIT %s OFFSET %s
-        ''', (limit, offset))
+        ''', tuple(filter_params) + (limit, offset))
         logs = cursor.fetchall()
-    return jsonify({'logs': logs})
+    return jsonify({'items': logs, 'total': total})
 
 # Users API (admin only)
 @app.route('/api/v2/users', methods=['GET'])
@@ -2645,7 +2688,7 @@ def api_users():
         # Don't return API keys in list
         for user in users:
             user.pop('api_key', None)
-    return jsonify({'users': users})
+    return items_response(users)
 
 # Roles API (admin only)
 @app.route('/api/v2/roles', methods=['GET'])
@@ -2665,7 +2708,7 @@ def api_roles():
                 WHERE rp.role_id = %s
             ''', (role['id'],))
             role['permissions'] = cursor.fetchall()
-    return jsonify({'roles': roles})
+    return items_response(roles)
 
 
 # ── Extended v2 endpoints ─────────────────────────────────────────────────────
@@ -2675,18 +2718,57 @@ def api_roles():
 def api_dashboard():
     with get_db_connection(current_app) as conn:
         cursor = conn.cursor(dictionary=True)
-        cursor.execute('SELECT id, name, cidr, site, vlan_id FROM Subnet ORDER BY site, name')
-        subnets = cursor.fetchall()
         utils = get_all_subnet_utilizations(cursor)
-        sites = {}
+        cursor.execute('SELECT COUNT(*) AS n FROM Device')
-        for s in subnets:
+        device_count = cursor.fetchone()['n']
-            site = s['site'] or 'Unassigned'
+        cursor.execute('SELECT COUNT(*) AS n FROM Subnet')
-            util = utils.get(s['id'], {'percent': 0})
+        subnet_count = cursor.fetchone()['n']
-            sites.setdefault(site, []).append({
+
-                'id': s['id'], 'name': s['name'], 'cidr': s['cidr'],
+        total_ips = sum(u['total'] for u in utils.values())
-                'vlan_id': s['vlan_id'], 'utilization': util['percent'],
+        used_ips = sum(u['used'] for u in utils.values())
+        available_ips = max(total_ips - used_ips, 0)
+        utilization_percent = round((used_ips / total_ips * 100) if total_ips > 0 else 0, 1)
+        alerting_subnets = sum(1 for u in utils.values() if u['percent'] >= 90)
+
+        cursor.execute('SELECT id, name, cidr, site, vlan_id FROM Subnet ORDER BY name')
+        subnet_overview = []
+        for s in cursor.fetchall():
+            u = utils.get(s['id'], {'total': 0, 'used': 0, 'percent': 0})
+            pct = u['percent']
+            subnet_overview.append({
+                'id': s['id'],
+                'name': s['name'],
+                'cidr': s['cidr'],
+                'site': s['site'] or 'Unassigned',
+                'vlan_id': s['vlan_id'],
+                'utilization': pct,
+                'available': u['total'] - u['used'],
+                'status': 'alerting' if pct >= 90 else 'active',
+            })
+
+        cursor.execute('''
+            SELECT HOUR(timestamp) AS hour, COUNT(*) AS count
+            FROM AuditLog
+            WHERE timestamp >= DATE_SUB(NOW(), INTERVAL 24 HOUR)
+            GROUP BY HOUR(timestamp)
+            ORDER BY hour
+        ''')
+        activity_by_hour = {row['hour']: row['count'] for row in cursor.fetchall()}
+        activity = [{'hour': h, 'count': activity_by_hour.get(h, 0)} for h in range(24)]
+
+    return jsonify({
+        'stats': {
+            'total_ips': total_ips,
+            'used_ips': used_ips,
+            'available_ips': available_ips,
+            'utilization_percent': utilization_percent,
+            'subnet_count': subnet_count,
+            'alerting_subnets': alerting_subnets,
+            'device_count': device_count,
+        },
+        'subnet_overview': subnet_overview,
+        'activity': activity,
     })
-    return jsonify({'sites': sites})
 
 
 @app.route('/api/v2/search', methods=['GET'])
@@ -2832,15 +2914,17 @@ def api_reorder_custom_fields():
 @app.route('/api/v2/audit/export', methods=['GET'])
 @require_permission('view_audit')
 def api_audit_export():
+    where_sql, filter_params = build_audit_filters()
     with get_db_connection(current_app) as conn:
         cursor = conn.cursor()
-        cursor.execute('''
+        cursor.execute(f'''
             SELECT al.timestamp, u.name, al.action, al.details, s.name
             FROM AuditLog al
             LEFT JOIN User u ON al.user_id = u.id
             LEFT JOIN Subnet s ON al.subnet_id = s.id
+            {where_sql}
             ORDER BY al.timestamp DESC
-        ''')
+        ''', tuple(filter_params))
         rows = cursor.fetchall()
     return csv_attachment(rows, ['Timestamp', 'User', 'Action', 'Details', 'Subnet'], 'audit_log.csv')
 

frontend/src/api.ts

@@ -1,7 +1,16 @@
 const jsonHeaders = { "Content-Type": "application/json" };
 
+let onUnauthorized: (() => void) | null = null;
+
+export function setUnauthorizedHandler(fn: () => void) {
+  onUnauthorized = fn;
+}
+
 async function handle<T>(res: Response): Promise<T> {
-  if (res.status === 401) throw new Error("unauthorized");
+  if (res.status === 401) {
+    onUnauthorized?.();
+    throw new Error("unauthorized");
+  }
   const data = await res.json().catch(() => ({}));
   if (!res.ok) throw new Error((data as { error?: string }).error || res.statusText);
   return data as T;
@@ -36,6 +45,7 @@ export interface IpOnDevice {
   subnet_name?: string;
   cidr?: string;
   site?: string;
+  notes?: string;
 }
 
 export interface Subnet {
@@ -121,6 +131,18 @@ export interface CustomFieldDef {
   field_type: string;
   required?: boolean;
   display_order?: number;
+  default_value?: string;
+  help_text?: string;
+  validation_rules?: { select_options?: string[] };
+}
+
+export interface AuditParams {
+  limit?: number;
+  offset?: number;
+  user?: string;
+  action?: string;
+  from?: string;
+  to?: string;
 }
 
 export const api = {
@@ -156,7 +178,28 @@ export const api = {
     return handle(await fetchApi("/api/v2/auth/logout", { method: "POST" }));
   },
   async dashboard() {
-    return handle<{ sites: Record<string, Subnet[]> }>(await fetchApi("/api/v2/dashboard"));
+    return handle<{
+      stats: {
+        total_ips: number;
+        used_ips: number;
+        available_ips: number;
+        utilization_percent: number;
+        subnet_count: number;
+        alerting_subnets: number;
+        device_count: number;
+      };
+      subnet_overview: {
+        id: number;
+        name: string;
+        cidr: string;
+        site: string;
+        vlan_id?: number;
+        utilization: number;
+        available: number;
+        status: "active" | "alerting";
+      }[];
+      activity: { hour: number; count: number }[];
+    }>(await fetchApi("/api/v2/dashboard"));
   },
   async search(q: string) {
     return handle<Record<string, unknown[]>>(await fetchApi(`/api/v2/search?q=${encodeURIComponent(q)}`));
@@ -228,8 +271,8 @@ export const api = {
     return `/api/v2/subnets/${id}/export`;
   },
   async tags() {
-    const d = await handle<{ tags?: Tag[]; items?: Tag[] }>(await fetchApi("/api/v2/tags"));
+    const d = await handle<{ items: Tag[] }>(await fetchApi("/api/v2/tags"));
-    return d.items ?? d.tags ?? [];
+    return d.items;
   },
   async createTag(body: Partial<Tag>) {
     return handle(await fetchApi("/api/v2/tags", { method: "POST", headers: jsonHeaders, body: JSON.stringify(body) }));
@@ -249,8 +292,8 @@ export const api = {
     return handle(await fetchApi(`/api/v2/devices/${deviceId}/tags/${tagId}`, { method: "DELETE" }));
   },
   async racks() {
-    const d = await handle<{ racks?: Rack[]; items?: Rack[] }>(await fetchApi("/api/v2/racks"));
+    const d = await handle<{ items: Rack[] }>(await fetchApi("/api/v2/racks"));
-    return d.racks ?? d.items ?? [];
+    return d.items;
   },
   async rack(id: number) {
     return handle<Rack>(await fetchApi(`/api/v2/racks/${id}`));
@@ -318,18 +361,37 @@ export const api = {
       method: "POST", headers: jsonHeaders, body: JSON.stringify({ password }),
     }));
   },
-  async audit(limit = 100) {
+  async audit(params: AuditParams = {}) {
-    const d = await handle<{ logs: AuditEntry[] }>(await fetchApi(`/api/v2/audit?limit=${limit}`));
+    const p = new URLSearchParams();
-    return d.logs;
+    if (params.limit != null) p.set("limit", String(params.limit));
+    if (params.offset != null) p.set("offset", String(params.offset));
+    if (params.user) p.set("user", params.user);
+    if (params.action) p.set("action", params.action);
+    if (params.from) p.set("from", params.from);
+    if (params.to) p.set("to", params.to);
+    const q = p.toString();
+    return handle<{ items: AuditEntry[]; total: number }>(await fetchApi(`/api/v2/audit${q ? `?${q}` : ""}`));
+  },
+  async auditActions() {
+    const d = await handle<{ items: string[] }>(await fetchApi("/api/v2/audit/actions"));
+    return d.items;
+  },
+  auditExportUrl(params: AuditParams = {}) {
+    const p = new URLSearchParams();
+    if (params.user) p.set("user", params.user);
+    if (params.action) p.set("action", params.action);
+    if (params.from) p.set("from", params.from);
+    if (params.to) p.set("to", params.to);
+    const q = p.toString();
+    return `/api/v2/audit/export${q ? `?${q}` : ""}`;
   },
-  auditExportUrl: "/api/v2/audit/export",
   async users() {
-    const d = await handle<{ users?: UserRow[]; items?: UserRow[] }>(await fetchApi("/api/v2/users"));
+    const d = await handle<{ items: UserRow[] }>(await fetchApi("/api/v2/users"));
-    return d.users ?? d.items ?? [];
+    return d.items;
   },
   async roles() {
-    const d = await handle<{ roles?: RoleRow[] }>(await fetchApi("/api/v2/roles"));
+    const d = await handle<{ items: RoleRow[] }>(await fetchApi("/api/v2/roles"));
-    return d.roles ?? [];
+    return d.items;
   },
   async permissions() {
     const d = await handle<{ items: { id: number; name: string; category?: string }[] }>(
@@ -338,8 +400,18 @@ export const api = {
     return d.items;
   },
   async customFields(entityType: string) {
-    const d = await handle<{ fields?: CustomFieldDef[] }>(await fetchApi(`/api/v2/custom_fields/${entityType}`));
+    const d = await handle<{ items: CustomFieldDef[] }>(await fetchApi(`/api/v2/custom_fields/${entityType}`));
-    return d.fields ?? [];
+    return d.items;
+  },
+  async patchDeviceCustomFields(deviceId: number, customFields: Record<string, unknown>) {
+    return handle(await fetchApi(`/api/v2/devices/${deviceId}/custom-fields`, {
+      method: "PATCH", headers: jsonHeaders, body: JSON.stringify({ custom_fields: customFields }),
+    }));
+  },
+  async patchSubnetCustomFields(subnetId: number, customFields: Record<string, unknown>) {
+    return handle(await fetchApi(`/api/v2/subnets/${subnetId}/custom-fields`, {
+      method: "PATCH", headers: jsonHeaders, body: JSON.stringify({ custom_fields: customFields }),
+    }));
   },
   async bulkAssignIps(deviceId: number, ipIds: number[]) {
     return handle(await fetchApi("/api/v2/bulk/assign-ips", {

frontend/src/components/AppLayout.vue

@@ -1,10 +1,12 @@
 <script setup lang="ts">
 import { ref, computed, onMounted, onUnmounted, watch, nextTick } from "vue";
 import { RouterLink, RouterView, useRoute, useRouter } from "vue-router";
-import { Menu, Search, X, Home, Server, Grid3x3, Settings, Users, Tag, Layers, FileText, User } from "lucide-vue-next";
+import { Menu, Search, X, Home, Server, Grid3x3, Settings, Users, Tag, Layers, FileText, User, Network } from "lucide-vue-next";
 import { useAuthStore } from "@/stores/auth";
 import { api } from "@/api";
 
+const RELEASES_URL = "https://git.jdbnet.co.uk/jamie/ipam/releases";
+
 const auth = useAuthStore();
 const route = useRoute();
 const router = useRouter();
@@ -18,6 +20,7 @@ const searchLoading = ref(false);
 const nav = computed(() =>
   [
     { to: "/", label: "Home", icon: Home, perm: "view_index" },
+    { to: "/subnets", label: "Subnets", icon: Network, perm: "view_subnet", match: (path: string) => path === "/subnets" || /^\/subnets\/\d+/.test(path) },
     { to: "/devices", label: "Devices", icon: Server, perm: "view_devices" },
     { to: "/racks", label: "Racks", icon: Grid3x3, perm: "view_racks" },
     { to: "/tags", label: "Tags", icon: Tag, perm: "view_tags" },
@@ -89,30 +92,35 @@ onUnmounted(() => {
 </script>
 
 <template>
-  <div class="flex min-h-screen bg-surface font-sans">
+  <div class="flex h-screen overflow-hidden bg-surface font-sans">
     <!-- Mobile overlay -->
     <div v-if="sidebarOpen" class="fixed inset-0 z-40 bg-black/50 lg:hidden" @click="sidebarOpen = false" />
 
     <!-- Sidebar -->
     <aside
-      class="fixed inset-y-0 left-0 z-50 flex w-64 flex-col border-r border-slate-200 bg-surface-raised transition-transform dark:border-slate-800 lg:static lg:translate-x-0"
+      class="fixed inset-y-0 left-0 z-50 flex h-full w-64 shrink-0 flex-col border-r border-slate-200 bg-surface-raised transition-transform dark:border-slate-800 lg:static lg:h-screen lg:translate-x-0"
       :class="sidebarOpen ? 'translate-x-0' : '-translate-x-full'"
     >
-      <div class="flex items-center gap-3 border-b border-slate-200 p-4 dark:border-slate-800">
+      <div class="flex shrink-0 items-center gap-3 border-b border-slate-200 p-4 dark:border-slate-800">
         <img v-if="auth.org.logo" :src="auth.org.logo" alt="" class="h-8 rounded" />
         <div class="min-w-0 flex-1">
           <div class="truncate text-sm font-semibold">{{ auth.org.name }} IPAM</div>
-          <div class="text-xs text-slate-500">{{ auth.version }}</div>
+          <a
+            :href="RELEASES_URL"
+            target="_blank"
+            rel="noopener noreferrer"
+            class="text-xs text-slate-500 hover:text-accent hover:underline"
+          >{{ auth.version }}</a>
         </div>
         <button class="lg:hidden" @click="sidebarOpen = false"><X class="h-5 w-5" /></button>
       </div>
-      <nav class="flex-1 overflow-y-auto p-2">
+      <nav class="min-h-0 flex-1 overflow-y-auto p-2">
         <RouterLink
           v-for="item in nav"
           :key="item.to"
           :to="item.to"
           class="mb-0.5 flex items-center gap-2 rounded-lg px-3 py-2 text-sm transition"
-          :class="route.path === item.to || route.path.startsWith(item.to + '/')
+          :class="(item.match ? item.match(route.path) : route.path === item.to || route.path.startsWith(item.to + '/'))
             ? 'bg-accent/15 text-accent font-medium'
             : 'text-slate-600 hover:bg-surface-overlay dark:text-slate-400'"
           @click="sidebarOpen = false"
@@ -121,15 +129,15 @@ onUnmounted(() => {
           {{ item.label }}
         </RouterLink>
       </nav>
-      <div class="border-t border-slate-200 p-3 dark:border-slate-800">
+      <div class="shrink-0 border-t border-slate-200 p-3 dark:border-slate-800">
         <div class="truncate text-xs text-slate-500">{{ auth.user?.name }}</div>
         <button class="mt-2 text-xs text-accent hover:underline" @click="logout">Sign out</button>
       </div>
     </aside>
 
     <!-- Main -->
-    <div class="flex min-w-0 flex-1 flex-col">
+    <div class="flex min-h-0 min-w-0 flex-1 flex-col">
-      <header class="flex items-center gap-3 border-b border-slate-200 bg-surface-raised px-4 py-3 dark:border-slate-800">
+      <header class="flex shrink-0 items-center gap-3 border-b border-slate-200 bg-surface-raised px-4 py-3 dark:border-slate-800">
         <button class="lg:hidden" @click="sidebarOpen = true"><Menu class="h-6 w-6" /></button>
         <span class="font-semibold lg:hidden">{{ auth.org.name }} IPAM</span>
         <button
@@ -140,7 +148,7 @@ onUnmounted(() => {
           <Search class="h-5 w-5" />
         </button>
       </header>
-      <main class="flex-1 overflow-auto p-4 md:p-6">
+      <main class="min-h-0 flex-1 overflow-auto p-4 md:p-6">
         <RouterView />
       </main>
     </div>

frontend/src/components/CustomFieldValues.vue

@@ -0,0 +1,129 @@
+<script setup lang="ts">
+import { ref, onMounted, computed, watch } from "vue";
+import { api, type CustomFieldDef } from "@/api";
+
+const props = defineProps<{
+  entityType: "device" | "subnet";
+  entityId: number;
+  values?: Record<string, unknown>;
+  canEdit: boolean;
+}>();
+
+const emit = defineEmits<{ saved: [values: Record<string, unknown>] }>();
+
+const fields = ref<CustomFieldDef[]>([]);
+const form = ref<Record<string, unknown>>({});
+const loading = ref(true);
+const saving = ref(false);
+const err = ref("");
+const msg = ref("");
+
+const visible = computed(() => fields.value.length > 0 || Object.keys(props.values ?? {}).length > 0);
+
+function initForm() {
+  const next: Record<string, unknown> = {};
+  for (const f of fields.value) {
+    const existing = props.values?.[f.field_key];
+    if (existing !== undefined && existing !== null) {
+      next[f.field_key] = existing;
+    } else if (f.default_value) {
+      next[f.field_key] = f.field_type === "checkbox" ? f.default_value === "true" : f.default_value;
+    } else {
+      next[f.field_key] = f.field_type === "checkbox" ? false : "";
+    }
+  }
+  form.value = next;
+}
+
+async function loadFields() {
+  loading.value = true;
+  err.value = "";
+  try {
+    fields.value = await api.customFields(props.entityType);
+    initForm();
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed to load fields";
+    fields.value = [];
+  } finally {
+    loading.value = false;
+  }
+}
+
+onMounted(loadFields);
+
+watch(() => props.values, () => {
+  if (fields.value.length) initForm();
+}, { deep: true });
+
+async function save() {
+  if (!props.canEdit) return;
+  saving.value = true;
+  err.value = "";
+  msg.value = "";
+  try {
+    const payload = { ...form.value };
+    if (props.entityType === "device") {
+      await api.patchDeviceCustomFields(props.entityId, payload);
+    } else {
+      await api.patchSubnetCustomFields(props.entityId, payload);
+    }
+    msg.value = "Saved";
+    emit("saved", payload);
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed to save";
+  } finally {
+    saving.value = false;
+  }
+}
+</script>
+
+<template>
+  <div v-if="visible" class="card">
+    <h2 class="font-semibold">Custom fields</h2>
+    <p v-if="loading" class="mt-2 text-sm text-slate-500">Loading…</p>
+    <form v-else class="mt-3 space-y-3" @submit.prevent="save">
+      <div v-for="f in fields" :key="f.id">
+        <label class="mb-1 block text-sm font-medium">
+          {{ f.name }}<span v-if="f.required" class="text-red-500"> *</span>
+        </label>
+        <p v-if="f.help_text" class="mb-1 text-xs text-slate-500">{{ f.help_text }}</p>
+        <template v-if="canEdit">
+          <textarea
+            v-if="f.field_type === 'textarea'"
+            v-model="form[f.field_key]"
+            class="input-field"
+            :required="f.required"
+          />
+          <select
+            v-else-if="f.field_type === 'select'"
+            v-model="form[f.field_key]"
+            class="input-field"
+            :required="f.required"
+          >
+            <option value="">—</option>
+            <option v-for="opt in f.validation_rules?.select_options ?? []" :key="opt" :value="opt">{{ opt }}</option>
+          </select>
+          <label v-else-if="f.field_type === 'checkbox'" class="flex items-center gap-2 text-sm">
+            <input v-model="form[f.field_key]" type="checkbox" />
+            <span>Enabled</span>
+          </label>
+          <input
+            v-else
+            v-model="form[f.field_key]"
+            class="input-field"
+            :type="f.field_type === 'number' ? 'number' : f.field_type === 'date' ? 'date' : 'text'"
+            :required="f.required"
+          />
+        </template>
+        <p v-else class="text-sm text-slate-600 dark:text-slate-400">
+          {{ f.field_type === 'checkbox' ? (form[f.field_key] ? 'Yes' : 'No') : (form[f.field_key] || '—') }}
+        </p>
+      </div>
+      <div v-if="canEdit && fields.length" class="flex gap-2">
+        <button type="submit" class="btn-primary text-sm" :disabled="saving">Save fields</button>
+      </div>
+      <p v-if="msg" class="text-sm text-accent">{{ msg }}</p>
+      <p v-if="err" class="text-sm text-red-500">{{ err }}</p>
+    </form>
+  </div>
+</template>

frontend/src/components/DhcpModal.vue

@@ -0,0 +1,152 @@
+<script setup lang="ts">
+import { ref, watch } from "vue";
+import { X } from "lucide-vue-next";
+import { api } from "@/api";
+import { useAuthStore } from "@/stores/auth";
+
+const props = defineProps<{
+  open: boolean;
+  subnetId: number | null;
+}>();
+
+const emit = defineEmits<{ close: []; saved: [] }>();
+
+const auth = useAuthStore();
+const loading = ref(false);
+const saving = ref(false);
+const err = ref("");
+const msg = ref("");
+const hasPool = ref(false);
+const form = ref({ start_ip: "", end_ip: "", excluded_ips: "" });
+
+const canEdit = () => auth.can("configure_dhcp");
+
+async function loadPool() {
+  if (!props.subnetId) return;
+  loading.value = true;
+  err.value = "";
+  msg.value = "";
+  hasPool.value = false;
+  form.value = { start_ip: "", end_ip: "", excluded_ips: "" };
+  try {
+    const d = await api.getDhcp(props.subnetId) as { pools?: { start_ip: string; end_ip: string; excluded_ips?: string }[] };
+    if (d.pools?.[0]) {
+      hasPool.value = true;
+      form.value.start_ip = d.pools[0].start_ip;
+      form.value.end_ip = d.pools[0].end_ip;
+      form.value.excluded_ips = d.pools[0].excluded_ips || "";
+    }
+  } catch (e) {
+    if (auth.can("view_dhcp")) {
+      err.value = e instanceof Error ? e.message : "Failed to load DHCP pool";
+    }
+  } finally {
+    loading.value = false;
+  }
+}
+
+watch(
+  () => [props.open, props.subnetId] as const,
+  ([open]) => {
+    if (open) loadPool();
+  },
+);
+
+async function save() {
+  if (!props.subnetId || !canEdit()) return;
+  saving.value = true;
+  err.value = "";
+  msg.value = "";
+  try {
+    await api.setDhcp(props.subnetId, {
+      pools: [{
+        start_ip: form.value.start_ip,
+        end_ip: form.value.end_ip,
+        excluded_ips: form.value.excluded_ips.split(",").map((s) => s.trim()).filter(Boolean),
+      }],
+    });
+    hasPool.value = true;
+    msg.value = "Saved";
+    emit("saved");
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed to save";
+  } finally {
+    saving.value = false;
+  }
+}
+
+async function remove() {
+  if (!props.subnetId || !canEdit() || !confirm("Remove this DHCP pool?")) return;
+  saving.value = true;
+  err.value = "";
+  msg.value = "";
+  try {
+    await api.setDhcp(props.subnetId, { remove: true });
+    hasPool.value = false;
+    form.value = { start_ip: "", end_ip: "", excluded_ips: "" };
+    msg.value = "Removed";
+    emit("saved");
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed to remove";
+  } finally {
+    saving.value = false;
+  }
+}
+
+function onKeydown(e: KeyboardEvent) {
+  if (e.key === "Escape") emit("close");
+}
+</script>
+
+<template>
+  <Teleport to="body">
+    <div
+      v-if="open"
+      class="fixed inset-0 z-50 flex items-center justify-center bg-black/50 p-4"
+      @click.self="emit('close')"
+      @keydown="onKeydown"
+    >
+      <form class="card w-full max-w-lg space-y-4 shadow-xl" @submit.prevent="save">
+        <div class="flex items-center justify-between">
+          <h2 class="text-lg font-semibold">DHCP pool</h2>
+          <button type="button" class="rounded-lg p-1 hover:bg-surface-overlay" aria-label="Close" @click="emit('close')">
+            <X class="h-5 w-5" />
+          </button>
+        </div>
+        <p v-if="loading" class="text-sm text-slate-500">Loading…</p>
+        <template v-else>
+          <input
+            v-model="form.start_ip"
+            class="input-field"
+            placeholder="Start IP"
+            required
+            :disabled="!canEdit()"
+          />
+          <input
+            v-model="form.end_ip"
+            class="input-field"
+            placeholder="End IP"
+            required
+            :disabled="!canEdit()"
+          />
+          <input
+            v-model="form.excluded_ips"
+            class="input-field"
+            placeholder="Excluded IPs (comma-separated)"
+            :disabled="!canEdit()"
+          />
+          <div v-if="canEdit()" class="flex gap-2">
+            <button type="submit" class="btn-primary" :disabled="saving">Save</button>
+            <button v-if="hasPool" type="button" class="btn-secondary" :disabled="saving" @click="remove">Remove pool</button>
+            <button type="button" class="btn-secondary" @click="emit('close')">Cancel</button>
+          </div>
+          <div v-else class="flex justify-end">
+            <button type="button" class="btn-secondary" @click="emit('close')">Close</button>
+          </div>
+          <p v-if="msg" class="text-sm text-accent">{{ msg }}</p>
+          <p v-if="err" class="text-sm text-red-500">{{ err }}</p>
+        </template>
+      </form>
+    </div>
+  </Teleport>
+</template>

frontend/src/main.ts

@@ -2,6 +2,20 @@ import { createApp } from "vue";
 import { createPinia } from "pinia";
 import App from "./App.vue";
 import router from "./router";
+import { setUnauthorizedHandler } from "./api";
+import { useAuthStore } from "./stores/auth";
 import "./style.css";
 
-createApp(App).use(createPinia()).use(router).mount("#app");
+const pinia = createPinia();
+const app = createApp(App);
+app.use(pinia).use(router);
+
+setUnauthorizedHandler(() => {
+  const auth = useAuthStore();
+  const current = router.currentRoute.value;
+  if (current.meta.public) return;
+  auth.logout();
+  router.push({ name: "login", query: { redirect: current.fullPath } });
+});
+
+app.mount("#app");

frontend/src/router/index.ts

@@ -12,10 +12,11 @@ const router = createRouter({
       component: () => import("@/components/AppLayout.vue"),
       children: [
         { path: "", name: "dashboard", component: () => import("@/views/DashboardView.vue") },
+        { path: "subnets", name: "subnets", component: () => import("@/views/SubnetsBrowseView.vue") },
         { path: "devices", name: "devices", component: () => import("@/views/DevicesView.vue") },
         { path: "devices/:id", name: "device", component: () => import("@/views/DeviceDetailView.vue") },
         { path: "subnets/:id", name: "subnet", component: () => import("@/views/SubnetDetailView.vue") },
-        { path: "subnets/:id/dhcp", name: "dhcp", component: () => import("@/views/DhcpView.vue") },
+        { path: "subnets/:id/dhcp", redirect: (to) => `/subnets/${to.params.id}` },
         { path: "racks", name: "racks", component: () => import("@/views/RacksView.vue") },
         { path: "racks/:id", name: "rack", component: () => import("@/views/RackDetailView.vue") },
         { path: "search", redirect: "/" },
@@ -41,4 +42,5 @@ router.beforeEach(async (to) => {
   return true;
 });
 
+export { router };
 export default router;

frontend/src/views/AuditView.vue

@@ -1,30 +1,151 @@
 <script setup lang="ts">
-import { ref, onMounted } from "vue";
+import { ref, onMounted, computed } from "vue";
 import { api, type AuditEntry } from "@/api";
 import { formatLocalTime } from "@/utils/datetime";
 
 const logs = ref<AuditEntry[]>([]);
+const actions = ref<string[]>([]);
+const total = ref(0);
+const loading = ref(true);
+const error = ref("");
+const limit = 50;
+const offset = ref(0);
 
-onMounted(async () => { logs.value = await api.audit(200); });
+const filters = ref({ user: "", action: "", from: "", to: "" });
+const applied = ref({ user: "", action: "", from: "", to: "" });
+
+const exportUrl = computed(() => api.auditExportUrl({
+  user: applied.value.user || undefined,
+  action: applied.value.action || undefined,
+  from: applied.value.from || undefined,
+  to: applied.value.to || undefined,
+}));
+
+const page = computed(() => Math.floor(offset.value / limit) + 1);
+const totalPages = computed(() => Math.max(1, Math.ceil(total.value / limit)));
+
+async function load() {
+  loading.value = true;
+  error.value = "";
+  try {
+    const d = await api.audit({
+      limit,
+      offset: offset.value,
+      user: applied.value.user || undefined,
+      action: applied.value.action || undefined,
+      from: applied.value.from || undefined,
+      to: applied.value.to || undefined,
+    });
+    logs.value = d.items;
+    total.value = d.total;
+  } catch (e) {
+    error.value = e instanceof Error ? e.message : "Failed to load audit log";
+    logs.value = [];
+    total.value = 0;
+  } finally {
+    loading.value = false;
+  }
+}
+
+onMounted(async () => {
+  try {
+    actions.value = await api.auditActions();
+  } catch {
+    actions.value = [];
+  }
+  await load();
+});
+
+function applyFilters() {
+  applied.value = { ...filters.value };
+  offset.value = 0;
+  load();
+}
+
+function clearFilters() {
+  filters.value = { user: "", action: "", from: "", to: "" };
+  applied.value = { user: "", action: "", from: "", to: "" };
+  offset.value = 0;
+  load();
+}
+
+function prevPage() {
+  if (offset.value >= limit) {
+    offset.value -= limit;
+    load();
+  }
+}
+
+function nextPage() {
+  if (offset.value + limit < total.value) {
+    offset.value += limit;
+    load();
+  }
+}
 </script>
 <template>
   <div>
-    <div class="flex items-center justify-between">
+    <div class="flex flex-wrap items-center justify-between gap-3">
       <h1 class="text-2xl font-bold">Audit log</h1>
-      <a href="/api/v2/audit/export" class="btn-secondary text-sm">Export CSV</a>
+      <a :href="exportUrl" class="btn-secondary text-sm">Export CSV</a>
     </div>
-    <div class="card mt-6 overflow-x-auto">
+
+    <form class="card mt-6 flex flex-wrap items-end gap-3" @submit.prevent="applyFilters">
+      <div>
+        <label class="mb-1 block text-xs text-slate-500">User</label>
+        <input v-model="filters.user" class="input-field py-1.5 text-sm" placeholder="Name contains…" />
+      </div>
+      <div>
+        <label class="mb-1 block text-xs text-slate-500">Action</label>
+        <select v-model="filters.action" class="input-field py-1.5 text-sm">
+          <option value="">All actions</option>
+          <option v-for="a in actions" :key="a" :value="a">{{ a }}</option>
+        </select>
+      </div>
+      <div>
+        <label class="mb-1 block text-xs text-slate-500">From</label>
+        <input v-model="filters.from" type="date" class="input-field py-1.5 text-sm" />
+      </div>
+      <div>
+        <label class="mb-1 block text-xs text-slate-500">To</label>
+        <input v-model="filters.to" type="date" class="input-field py-1.5 text-sm" />
+      </div>
+      <button type="submit" class="btn-primary text-sm">Apply</button>
+      <button type="button" class="btn-secondary text-sm" @click="clearFilters">Clear</button>
+    </form>
+
+    <p v-if="loading" class="mt-6 text-slate-500">Loading…</p>
+    <p v-else-if="error" class="mt-6 text-red-500">{{ error }}</p>
+    <div v-else class="card mt-6 overflow-x-auto">
       <table class="w-full text-left text-sm">
-        <thead><tr class="border-b dark:border-slate-700"><th class="p-2">Time</th><th class="p-2">User</th><th class="p-2">Action</th><th class="p-2">Details</th></tr></thead>
+        <thead>
+          <tr class="border-b dark:border-slate-700">
+            <th class="p-2">Time</th>
+            <th class="p-2">User</th>
+            <th class="p-2">Action</th>
+            <th class="p-2">Details</th>
+          </tr>
+        </thead>
         <tbody>
           <tr v-for="l in logs" :key="l.id" class="border-b dark:border-slate-800">
             <td class="p-2 whitespace-nowrap text-xs text-slate-500">{{ formatLocalTime(l.timestamp) }}</td>
-            <td class="p-2">{{ l.user_name }}</td>
+            <td class="p-2">{{ l.user_name || "—" }}</td>
             <td class="p-2 font-mono text-xs">{{ l.action }}</td>
             <td class="p-2 max-w-md truncate">{{ l.details }}</td>
           </tr>
+          <tr v-if="!logs.length">
+            <td colspan="4" class="p-4 text-center text-slate-500">No audit entries match your filters.</td>
+          </tr>
         </tbody>
       </table>
     </div>
+
+    <div v-if="!loading && !error && total > 0" class="mt-4 flex items-center justify-between text-sm text-slate-500">
+      <span>{{ total }} entries · page {{ page }} of {{ totalPages }}</span>
+      <div class="flex gap-2">
+        <button type="button" class="btn-secondary text-sm" :disabled="offset === 0" @click="prevPage">Previous</button>
+        <button type="button" class="btn-secondary text-sm" :disabled="offset + limit >= total" @click="nextPage">Next</button>
+      </div>
+    </div>
   </div>
 </template>

frontend/src/views/DashboardView.vue

@@ -1,52 +1,198 @@
 <script setup lang="ts">
-import { ref, onMounted } from "vue";
+import { ref, onMounted, computed } from "vue";
 import { RouterLink } from "vue-router";
-import { api, type Subnet } from "@/api";
+import { Network, Wifi, Layers, Server } from "lucide-vue-next";
+import { api } from "@/api";
+
+interface DashboardStats {
+  total_ips: number;
+  used_ips: number;
+  available_ips: number;
+  utilization_percent: number;
+  subnet_count: number;
+  device_count: number;
+}
+
+interface SubnetOverviewRow {
+  id: number;
+  name: string;
+  cidr: string;
+  site: string;
+  vlan_id?: number;
+  utilization: number;
+  available: number;
+}
+
+interface ActivityPoint {
+  hour: number;
+  count: number;
+}
 
-const sites = ref<Record<string, Subnet[]>>({});
 const loading = ref(true);
+const error = ref("");
+const stats = ref<DashboardStats | null>(null);
+const subnetOverview = ref<SubnetOverviewRow[]>([]);
+const activity = ref<ActivityPoint[]>([]);
+
+const donutStyle = computed(() => {
+  const pct = stats.value?.utilization_percent ?? 0;
+  return { background: `conic-gradient(rgb(6 182 212) ${pct}%, rgb(var(--surface-overlay)) ${pct}%)` };
+});
+
+const maxActivity = computed(() => Math.max(1, ...activity.value.map((a) => a.count)));
 
 onMounted(async () => {
   try {
     const d = await api.dashboard();
-    sites.value = d.sites;
+    stats.value = d.stats;
+    subnetOverview.value = d.subnet_overview;
+    activity.value = d.activity;
+  } catch (e) {
+    error.value = e instanceof Error ? e.message : "Failed to load dashboard";
   } finally {
     loading.value = false;
   }
 });
+
+function formatHour(h: number) {
+  if (h === 0) return "12 AM";
+  if (h === 12) return "12 PM";
+  return h < 12 ? `${h} AM` : `${h - 12} PM`;
+}
 </script>
 <template>
   <div>
     <h1 class="text-2xl font-bold">Dashboard</h1>
-    <p class="mt-1 text-slate-500">Subnets grouped by site</p>
+    <p class="mt-1 text-slate-500">Network overview</p>
-    <div v-if="loading" class="mt-8 text-slate-500">Loading…</div>
+
-    <div v-else class="mt-6 space-y-8">
+    <p v-if="loading" class="mt-8 text-slate-500">Loading…</p>
-      <section v-for="(subnets, site) in sites" :key="site">
+    <p v-else-if="error" class="mt-8 text-red-500">{{ error }}</p>
-        <h2 class="mb-3 text-lg font-semibold text-accent">{{ site }}</h2>
+
-        <div class="grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
+    <template v-else-if="stats">
-          <RouterLink
+      <div class="mt-6 grid gap-4 sm:grid-cols-2 xl:grid-cols-4">
-            v-for="s in subnets"
+        <div class="card flex items-start gap-4">
+          <div class="rounded-lg bg-accent/15 p-3 text-accent"><Network class="h-6 w-6" /></div>
+          <div>
+            <div class="text-xs font-medium uppercase tracking-wide text-slate-500">Total IPv4 addresses</div>
+            <div class="mt-1 text-2xl font-bold text-accent">{{ stats.total_ips.toLocaleString() }}</div>
+            <div class="text-sm text-slate-500">{{ stats.utilization_percent }}% utilised</div>
+          </div>
+        </div>
+        <div class="card flex items-start gap-4">
+          <div class="rounded-lg bg-surface-overlay p-3 text-slate-500"><Wifi class="h-6 w-6" /></div>
+          <div>
+            <div class="text-xs font-medium uppercase tracking-wide text-slate-500">Available IPs</div>
+            <div class="mt-1 text-2xl font-bold">{{ stats.available_ips.toLocaleString() }}</div>
+            <div class="text-sm text-slate-500">{{ 100 - stats.utilization_percent }}% free</div>
+          </div>
+        </div>
+        <div class="card flex items-start gap-4">
+          <div class="rounded-lg bg-surface-overlay p-3 text-slate-500"><Layers class="h-6 w-6" /></div>
+          <div>
+            <div class="text-xs font-medium uppercase tracking-wide text-slate-500">Subnets</div>
+            <div class="mt-1 text-2xl font-bold">{{ stats.subnet_count }}</div>
+            <div class="text-sm text-slate-500">Total</div>
+          </div>
+        </div>
+        <div class="card flex items-start gap-4">
+          <div class="rounded-lg bg-surface-overlay p-3 text-slate-500"><Server class="h-6 w-6" /></div>
+          <div>
+            <div class="text-xs font-medium uppercase tracking-wide text-slate-500">Devices</div>
+            <div class="mt-1 text-2xl font-bold">{{ stats.device_count.toLocaleString() }}</div>
+            <div class="text-sm text-slate-500">Managed</div>
+          </div>
+        </div>
+      </div>
+
+      <div class="mt-6 grid gap-4 lg:grid-cols-2">
+        <div class="card">
+          <h2 class="font-semibold">IPv4 usage distribution</h2>
+          <div class="mt-6 flex flex-col items-center gap-6 sm:flex-row sm:justify-center">
+            <div class="relative h-44 w-44 shrink-0 rounded-full" :style="donutStyle">
+              <div class="absolute inset-5 flex flex-col items-center justify-center rounded-full bg-surface-raised text-center">
+                <span class="text-2xl font-bold">{{ stats.total_ips.toLocaleString() }}</span>
+                <span class="text-xs uppercase tracking-wide text-slate-500">Total</span>
+              </div>
+            </div>
+            <div class="space-y-3 text-sm">
+              <div class="flex items-center gap-2">
+                <span class="h-3 w-3 rounded-full bg-accent" />
+                <span>{{ stats.utilization_percent }}% Used ({{ stats.used_ips.toLocaleString() }})</span>
+              </div>
+              <div class="flex items-center gap-2">
+                <span class="h-3 w-3 rounded-full bg-surface-overlay ring-1 ring-slate-300 dark:ring-slate-600" />
+                <span>{{ 100 - stats.utilization_percent }}% Free ({{ stats.available_ips.toLocaleString() }})</span>
+              </div>
+            </div>
+          </div>
+        </div>
+
+        <div class="card">
+          <h2 class="font-semibold">Activity — last 24 hours</h2>
+          <p class="mt-1 text-xs text-slate-500">Audit log entries by hour</p>
+          <div class="mt-4 flex h-40 items-end gap-0.5">
+            <div
+              v-for="point in activity"
+              :key="point.hour"
+              class="flex-1 rounded-t bg-accent/80 transition-all hover:bg-accent"
+              :style="{ height: `${Math.max(4, (point.count / maxActivity) * 100)}%` }"
+              :title="`${formatHour(point.hour)}: ${point.count}`"
+            />
+          </div>
+          <div class="mt-2 flex justify-between text-[10px] text-slate-500">
+            <span>12 AM</span>
+            <span>6 AM</span>
+            <span>12 PM</span>
+            <span>6 PM</span>
+          </div>
+        </div>
+      </div>
+
+      <div class="card mt-6 overflow-x-auto">
+        <div class="mb-4 flex items-center justify-between gap-3">
+          <h2 class="font-semibold">Subnet overview</h2>
+          <RouterLink to="/subnets" class="text-sm text-accent hover:underline">View all subnets</RouterLink>
+        </div>
+        <table class="w-full min-w-[640px] text-left text-sm">
+          <thead>
+            <tr class="border-b border-slate-200 text-xs font-medium uppercase tracking-wide text-slate-500 dark:border-slate-700">
+              <th class="p-2">Subnet</th>
+              <th class="p-2">Name</th>
+              <th class="p-2">Utilised</th>
+              <th class="p-2">Available</th>
+              <th class="p-2">Site</th>
+            </tr>
+          </thead>
+          <tbody>
+            <tr
+              v-for="s in subnetOverview"
               :key="s.id"
-            :to="`/subnets/${s.id}`"
+              class="border-b border-slate-100 dark:border-slate-800"
-            class="card block transition hover:border-accent/50"
             >
-            <div class="font-medium">{{ s.name }}</div>
+              <td class="p-2">
-            <div class="mt-1 flex flex-wrap items-center gap-2">
+                <RouterLink :to="`/subnets/${s.id}`" class="font-mono text-accent hover:underline">{{ s.cidr }}</RouterLink>
-              <span class="font-mono text-sm text-slate-500">{{ s.cidr }}</span>
+              </td>
-              <span
+              <td class="p-2">{{ s.name }}</td>
-                v-if="s.vlan_id"
+              <td class="p-2">
-                class="rounded-full bg-surface-overlay px-2 py-0.5 text-xs font-semibold text-slate-600 dark:text-slate-300"
+                <div class="flex items-center gap-2">
-              >VLAN {{ s.vlan_id }}</span>
+                  <div class="h-1.5 w-16 overflow-hidden rounded-full bg-surface-overlay">
+                    <div
+                      class="h-full rounded-full bg-accent"
+                      :style="{ width: `${s.utilization}%` }"
+                    />
                   </div>
-            <div class="mt-3">
+                  <span>{{ s.utilization }}%</span>
-              <div class="h-2 overflow-hidden rounded-full bg-surface-overlay">
-                <div class="h-full rounded-full bg-accent transition-all" :style="{ width: `${s.utilization ?? 0}%` }" />
                 </div>
-              <div class="mt-1 text-xs text-slate-500">{{ s.utilization ?? 0 }}% used</div>
+              </td>
-            </div>
+              <td class="p-2">{{ s.available }}</td>
-          </RouterLink>
+              <td class="p-2">{{ s.site }}</td>
-        </div>
+            </tr>
-      </section>
+            <tr v-if="!subnetOverview.length">
+              <td colspan="5" class="p-4 text-center text-slate-500">No subnets configured.</td>
+            </tr>
+          </tbody>
+        </table>
       </div>
+    </template>
   </div>
 </template>

frontend/src/views/DeviceDetailView.vue

@@ -1,8 +1,9 @@
 <script setup lang="ts">
-import { ref, onMounted, computed } from "vue";
+import { ref, computed, watch } from "vue";
 import { useRoute, useRouter, RouterLink } from "vue-router";
 import { api, type Device, type Tag, type Subnet } from "@/api";
 import type { IpHistoryEntry } from "@/components/IpHistoryModal.vue";
+import CustomFieldValues from "@/components/CustomFieldValues.vue";
 import { useAuthStore } from "@/stores/auth";
 import { formatLocalTime } from "@/utils/datetime";
 
@@ -15,7 +16,10 @@ const subnets = ref<Subnet[]>([]);
 const availableIps = ref<{ id: number; ip: string }[]>([]);
 const history = ref<IpHistoryEntry[]>([]);
 const editName = ref("");
+const editDescription = ref("");
 const saving = ref(false);
+const loading = ref(true);
+const error = ref("");
 const showAssignIp = ref(false);
 const assignForm = ref({ site: "", subnet_id: 0, ip_id: 0 });
 const err = ref("");
@@ -41,7 +45,10 @@ const subnetsForSite = computed(() =>
   subnets.value.filter((s) => (s.site || "Unassigned") === assignForm.value.site),
 );
 
-onMounted(async () => {
+async function loadDevice() {
+  loading.value = true;
+  error.value = "";
+  try {
     const id = Number(route.params.id);
     const [d, tags, h, sn] = await Promise.all([
       api.device(id),
@@ -51,10 +58,27 @@ onMounted(async () => {
     ]);
     device.value = d;
     editName.value = d.name;
+    editDescription.value = d.description || "";
     allTags.value = tags;
     subnets.value = sn;
     history.value = h as IpHistoryEntry[];
-});
+  } catch (e) {
+    error.value = e instanceof Error ? e.message : "Failed to load device";
+    device.value = null;
+  } finally {
+    loading.value = false;
+  }
+}
+
+watch(
+  () => route.params.id,
+  () => {
+    showAssignIp.value = false;
+    err.value = "";
+    loadDevice();
+  },
+  { immediate: true },
+);
 
 async function loadAvailableIps(subnetId: number) {
   if (!subnetId) {
@@ -89,12 +113,19 @@ async function openAssignIpModal() {
   showAssignIp.value = true;
 }
 
-async function saveName() {
+async function saveDevice() {
   if (!device.value) return;
   saving.value = true;
-  await api.updateDevice(device.value.id, { name: editName.value });
+  err.value = "";
+  try {
+    await api.updateDevice(device.value.id, { name: editName.value, description: editDescription.value });
     device.value.name = editName.value;
+    device.value.description = editDescription.value;
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed to save";
+  } finally {
     saving.value = false;
+  }
 }
 
 async function assignTag(tagId: number) {
@@ -115,8 +146,7 @@ async function assignIp() {
   try {
     await api.assignIp(device.value.id, assignForm.value.ip_id);
     showAssignIp.value = false;
-    device.value = await api.device(device.value.id);
+    await loadDevice();
-    history.value = (await api.deviceIpHistory(device.value.id)) as IpHistoryEntry[];
   } catch (e) {
     err.value = e instanceof Error ? e.message : "Failed";
   }
@@ -125,8 +155,7 @@ async function assignIp() {
 async function removeIp(ipId: number) {
   if (!device.value || !confirm("Remove this IP from the device?")) return;
   await api.removeIp(device.value.id, ipId);
-  device.value = await api.device(device.value.id);
+  await loadDevice();
-  history.value = (await api.deviceIpHistory(device.value.id)) as IpHistoryEntry[];
 }
 
 async function deleteDevice() {
@@ -135,22 +164,46 @@ async function deleteDevice() {
   router.push("/devices");
 }
 
+function onCustomFieldsSaved(values: Record<string, unknown>) {
+  if (device.value) device.value.custom_fields = values;
+}
+
 function formatTime(ts?: string) {
   return formatLocalTime(ts, "Unknown");
 }
 </script>
 <template>
-  <div v-if="device">
+  <div>
     <RouterLink to="/devices" class="text-sm text-accent hover:underline">← Devices</RouterLink>
+    <p v-if="loading" class="mt-8 text-slate-500">Loading…</p>
+    <p v-else-if="error" class="mt-8 text-red-500">{{ error }}</p>
+    <template v-else-if="device">
       <div class="mt-4 flex flex-wrap items-start justify-between gap-4">
-      <div class="flex-1">
+        <div class="flex min-w-0 max-w-2xl flex-1 flex-col gap-2">
-        <input v-if="auth.can('edit_device')" v-model="editName" class="input-field max-w-md text-xl font-bold" @blur="saveName" />
+          <template v-if="auth.can('edit_device')">
-        <h1 v-else class="text-2xl font-bold">{{ device.name }}</h1>
+            <input
-        <p class="mt-1 text-slate-500">{{ device.description || "No description" }}</p>
+              v-model="editName"
+              class="input-field block w-full border-0 bg-transparent px-0 py-0 text-2xl font-bold shadow-none focus:ring-0"
+              aria-label="Device name"
+              @blur="saveDevice"
+            />
+            <textarea
+              v-model="editDescription"
+              class="input-field block w-full resize-y text-sm"
+              placeholder="Add a description…"
+              rows="2"
+              @blur="saveDevice"
+            />
+          </template>
+          <template v-else>
+            <h1 class="text-2xl font-bold">{{ device.name }}</h1>
+            <p v-if="device.description" class="text-slate-500">{{ device.description }}</p>
+          </template>
+          <p v-if="err" class="text-sm text-red-500">{{ err }}</p>
         </div>
         <button
           v-if="auth.can('delete_device')"
-        class="text-sm text-red-500 hover:underline"
+          class="shrink-0 text-sm text-red-500 hover:underline"
           @click="deleteDevice"
         >Delete device</button>
       </div>
@@ -161,8 +214,13 @@ function formatTime(ts?: string) {
             <button v-if="auth.can('add_device_ip')" class="text-sm text-accent hover:underline" @click="openAssignIpModal">Assign IP</button>
           </div>
           <ul class="mt-3 space-y-2">
-          <li v-for="ip in device.ip_addresses" :key="ip.id" class="flex items-center justify-between font-mono text-sm">
+            <li v-for="ip in device.ip_addresses" :key="ip.id" class="flex items-center justify-between gap-3 font-mono text-sm">
-            <span>{{ ip.ip }} <span class="text-slate-500">({{ ip.subnet_name }})</span></span>
+              <span class="min-w-0">
+                {{ ip.ip }}
+                <span v-if="ip.notes || ip.subnet_name" class="font-sans text-slate-500">
+                  {{ ip.notes || ip.subnet_name }}
+                </span>
+              </span>
               <button v-if="auth.can('remove_device_ip')" class="text-red-500 hover:underline" @click="removeIp(ip.id)">Remove</button>
             </li>
             <li v-if="!device.ip_addresses?.length" class="text-sm text-slate-500">None assigned</li>
@@ -175,18 +233,28 @@ function formatTime(ts?: string) {
               {{ t.name }}
               <button v-if="auth.can('assign_device_tag')" class="text-red-500 hover:underline" @click="removeTag(t.id)">×</button>
             </span>
+            <span v-if="!device.tags?.length" class="text-sm text-slate-500">No tags</span>
           </div>
           <select v-if="auth.can('assign_device_tag')" class="input-field mt-3" @change="assignTag(Number(($event.target as HTMLSelectElement).value)); ($event.target as HTMLSelectElement).value = ''">
             <option value="">Add tag…</option>
             <option v-for="t in allTags.filter((t) => !device!.tags?.some((dt) => dt.id === t.id))" :key="t.id" :value="t.id">{{ t.name }}</option>
           </select>
         </div>
+        <CustomFieldValues
+          v-if="auth.can('view_custom_fields')"
+          class="lg:col-span-2"
+          entity-type="device"
+          :entity-id="device.id"
+          :values="device.custom_fields"
+          :can-edit="auth.can('edit_device')"
+          @saved="onCustomFieldsSaved"
+        />
         <div class="card lg:col-span-2">
           <h2 class="font-semibold">IP history</h2>
           <p v-if="!history.length" class="mt-2 text-sm text-slate-500">No assignment history.</p>
           <ul v-else class="mt-3 space-y-3">
             <li v-for="(entry, i) in history" :key="i" class="flex gap-3 text-sm">
-            <span class="shrink-0 font-semibold uppercase text-xs" :class="entry.action === 'assigned' ? 'text-emerald-600' : 'text-red-500'">
+              <span class="shrink-0 text-xs font-semibold uppercase" :class="entry.action === 'assigned' ? 'text-emerald-600' : 'text-red-500'">
                 {{ entry.action === "assigned" ? "Assigned" : "Removed" }}
               </span>
               <span class="font-mono">{{ entry.ip }}</span>
@@ -216,5 +284,6 @@ function formatTime(ts?: string) {
           </div>
         </form>
       </div>
+    </template>
   </div>
 </template>

frontend/src/views/DhcpView.vue

@@ -1,51 +0,0 @@
-<script setup lang="ts">
-import { ref, onMounted } from "vue";
-import { useRoute, RouterLink } from "vue-router";
-import { api } from "@/api";
-
-const route = useRoute();
-const pool = ref<{ start_ip?: string; end_ip?: string; excluded_ips?: string } | null>(null);
-const form = ref({ start_ip: "", end_ip: "", excluded_ips: "" });
-const msg = ref("");
-
-onMounted(async () => {
-  try {
-    const d = await api.getDhcp(Number(route.params.id)) as { pools?: { start_ip: string; end_ip: string; excluded_ips?: string }[] };
-    if (d.pools?.[0]) {
-      pool.value = d.pools[0];
-      form.value.start_ip = d.pools[0].start_ip;
-      form.value.end_ip = d.pools[0].end_ip;
-      form.value.excluded_ips = d.pools[0].excluded_ips || "";
-    }
-  } catch { /* no pool */ }
-});
-
-async function save() {
-  await api.setDhcp(Number(route.params.id), {
-    pools: [{ start_ip: form.value.start_ip, end_ip: form.value.end_ip, excluded_ips: form.value.excluded_ips.split(",").map((s) => s.trim()).filter(Boolean) }],
-  });
-  msg.value = "Saved";
-}
-
-async function remove() {
-  await api.setDhcp(Number(route.params.id), { remove: true });
-  pool.value = null;
-  msg.value = "Removed";
-}
-</script>
-<template>
-  <div>
-    <RouterLink :to="`/subnets/${route.params.id}`" class="text-sm text-accent hover:underline">← Subnet</RouterLink>
-    <h1 class="mt-4 text-2xl font-bold">DHCP pool</h1>
-    <form class="card mt-6 max-w-lg space-y-4" @submit.prevent="save">
-      <input v-model="form.start_ip" class="input-field" placeholder="Start IP" required />
-      <input v-model="form.end_ip" class="input-field" placeholder="End IP" required />
-      <input v-model="form.excluded_ips" class="input-field" placeholder="Excluded IPs (comma-separated)" />
-      <div class="flex gap-2">
-        <button type="submit" class="btn-primary">Save</button>
-        <button v-if="pool" type="button" class="btn-secondary" @click="remove">Remove pool</button>
-      </div>
-      <p v-if="msg" class="text-sm text-accent">{{ msg }}</p>
-    </form>
-  </div>
-</template>

frontend/src/views/RackDetailView.vue

@@ -7,7 +7,6 @@ import { useAuthStore } from "@/stores/auth";
 const route = useRoute();
 const auth = useAuthStore();
 const rack = ref<Rack | null>(null);
-const side = ref("front");
 const showAddDevice = ref(false);
 const showAddNonnet = ref(false);
 const addForm = ref({ device_id: 0, position_u: 1, side: "front" });
@@ -24,11 +23,11 @@ onMounted(load);
 
 const siteDevices = () => rack.value?.site_devices || [];
 
-const slots = (r: Rack) => {
+const slotsForSide = (r: Rack, rackSide: string) => {
   const h = r.height_u;
   const map: Record<number, typeof r.devices> = {};
   for (const d of r.devices || []) {
-    if (d.side === side.value) (map[d.position_u] ??= []).push(d);
+    if (d.side === rackSide) (map[d.position_u] ??= []).push(d);
   }
   return Array.from({ length: h }, (_, i) => ({ u: h - i, devices: map[h - i] || [] }));
 };
@@ -81,14 +80,14 @@ async function removeDevice(rackDeviceId: number) {
       <a v-if="auth.can('export_rack_csv')" :href="`/api/v2/racks/${rack.id}/export`" class="btn-secondary text-sm">Export CSV</a>
     </div>
     <div class="mt-4 flex flex-wrap gap-2">
-      <button class="rounded-lg px-3 py-1 text-sm" :class="side === 'front' ? 'bg-accent text-slate-950' : 'bg-surface-overlay'" @click="side = 'front'">Front</button>
-      <button class="rounded-lg px-3 py-1 text-sm" :class="side === 'back' ? 'bg-accent text-slate-950' : 'bg-surface-overlay'" @click="side = 'back'">Back</button>
       <button v-if="auth.can('add_device_to_rack')" class="btn-secondary text-sm" @click="showAddDevice = true; err = ''">Add device</button>
       <button v-if="auth.can('add_nonnet_device_to_rack')" class="btn-secondary text-sm" @click="showAddNonnet = true; err = ''">Add non-networked</button>
     </div>
 
-    <div class="card mt-6 max-w-md font-mono text-sm">
+    <div class="mt-6 grid gap-6 lg:grid-cols-2">
-      <div v-for="row in slots(rack)" :key="row.u" class="flex border-b border-slate-200 py-2 dark:border-slate-700">
+      <div v-for="rackSide in ['front', 'back'] as const" :key="rackSide" class="card font-mono text-sm">
+        <h2 class="mb-3 border-b border-slate-200 pb-2 text-base font-semibold capitalize dark:border-slate-700">{{ rackSide }}</h2>
+        <div v-for="row in slotsForSide(rack, rackSide)" :key="row.u" class="flex border-b border-slate-200 py-2 dark:border-slate-700">
           <span class="w-10 shrink-0 text-slate-500">U{{ row.u }}</span>
           <span class="flex flex-1 flex-col gap-1">
             <span v-for="d in row.devices" :key="d.id" class="flex items-center gap-2">
@@ -100,6 +99,7 @@ async function removeDevice(rackDeviceId: number) {
           </span>
         </div>
       </div>
+    </div>
 
     <div v-if="showAddDevice" class="fixed inset-0 z-50 flex items-center justify-center bg-black/40 p-4" @click.self="showAddDevice = false">
       <form class="card w-full max-w-md space-y-3" @submit.prevent="addDevice">

frontend/src/views/RacksView.vue

@@ -10,10 +10,20 @@ const showAdd = ref(false);
 const showEdit = ref(false);
 const form = ref({ name: "", site: "", height_u: 42 });
 const editId = ref(0);
+const loading = ref(true);
 const err = ref("");
 
 async function load() {
+  loading.value = true;
+  err.value = "";
+  try {
     racks.value = await api.racks();
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed to load racks";
+    racks.value = [];
+  } finally {
+    loading.value = false;
+  }
 }
 
 onMounted(load);
@@ -60,7 +70,10 @@ async function del(id: number) {
       <h1 class="text-2xl font-bold">Racks</h1>
       <button v-if="auth.can('add_rack')" class="btn-primary text-sm" @click="showAdd = true; err = ''">Add rack</button>
     </div>
-    <div class="mt-6 grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
+    <p v-if="loading" class="mt-6 text-slate-500">Loading…</p>
+    <p v-else-if="err && !racks.length" class="mt-6 text-red-500">{{ err }}</p>
+    <p v-else-if="!racks.length" class="mt-6 text-slate-500">No racks yet.</p>
+    <div v-else class="mt-6 grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
       <div v-for="r in racks" :key="r.id" class="card">
         <RouterLink :to="`/racks/${r.id}`" class="block transition hover:text-accent">
           <div class="font-medium">{{ r.name }}</div>

frontend/src/views/SubnetDetailView.vue

@@ -4,34 +4,94 @@ import { useRoute, RouterLink } from "vue-router";
 import { api, type Subnet } from "@/api";
 import { useAuthStore } from "@/stores/auth";
 import IpHistoryModal from "@/components/IpHistoryModal.vue";
+import DhcpModal from "@/components/DhcpModal.vue";
+import CustomFieldValues from "@/components/CustomFieldValues.vue";
 
 const route = useRoute();
 const auth = useAuthStore();
 const subnet = ref<Subnet | null>(null);
 const historyIp = ref<string | null>(null);
+const showDhcp = ref(false);
+const loading = ref(true);
+const error = ref("");
+const notesErr = ref("");
 
-onMounted(async () => {
+async function loadSubnet() {
+  loading.value = true;
+  error.value = "";
+  try {
     subnet.value = await api.subnet(Number(route.params.id));
-});
+  } catch (e) {
+    error.value = e instanceof Error ? e.message : "Failed to load subnet";
+    subnet.value = null;
+  } finally {
+    loading.value = false;
+  }
+}
+
+onMounted(loadSubnet);
 
 async function saveNotes(ipId: number, notes: string) {
+  notesErr.value = "";
+  try {
     await api.patchIpNotes(ipId, notes);
+  } catch (e) {
+    notesErr.value = e instanceof Error ? e.message : "Failed to save notes";
+  }
+}
+
+function onCustomFieldsSaved(values: Record<string, unknown>) {
+  if (subnet.value) subnet.value.custom_fields = values;
+}
+
+function isDhcpRow(hostname?: string) {
+  return hostname === "DHCP";
 }
 </script>
 <template>
-  <div v-if="subnet">
+  <div>
-    <RouterLink to="/" class="text-sm text-accent hover:underline">← Home</RouterLink>
+    <RouterLink to="/subnets" class="text-sm text-accent hover:underline">← Subnets</RouterLink>
+    <p v-if="loading" class="mt-8 text-slate-500">Loading…</p>
+    <p v-else-if="error" class="mt-8 text-red-500">{{ error }}</p>
+    <template v-else-if="subnet">
       <div class="mt-4 flex flex-wrap items-center justify-between gap-3">
         <div>
           <h1 class="text-2xl font-bold">{{ subnet.name }}</h1>
-        <p class="font-mono text-slate-500">{{ subnet.cidr }} · {{ subnet.site || "Unassigned" }}</p>
+          <div class="mt-1 flex flex-wrap items-center gap-2 font-mono text-slate-500">
+            <span>{{ subnet.cidr }} · {{ subnet.site || "Unassigned" }}</span>
+            <span
+              v-if="subnet.vlan_id"
+              class="rounded-full bg-surface-overlay px-2 py-0.5 text-xs font-semibold font-sans text-slate-600 dark:text-slate-300"
+            >VLAN {{ subnet.vlan_id }}</span>
+          </div>
+          <p v-if="subnet.vlan_description" class="mt-1 text-sm text-slate-500">{{ subnet.vlan_description }}</p>
+          <p v-if="subnet.vlan_notes" class="text-sm text-slate-400">{{ subnet.vlan_notes }}</p>
         </div>
         <div class="flex gap-2">
-        <RouterLink :to="`/subnets/${subnet.id}/dhcp`" class="btn-secondary text-sm">DHCP</RouterLink>
+          <button
+            v-if="auth.can('view_dhcp') || auth.can('configure_dhcp')"
+            type="button"
+            class="btn-secondary text-sm"
+            @click="showDhcp = true"
+          >
+            DHCP
+          </button>
           <a v-if="auth.can('export_subnet_csv')" :href="`/api/v2/subnets/${subnet.id}/export`" class="btn-secondary text-sm">Export CSV</a>
         </div>
       </div>
+
+      <CustomFieldValues
+        v-if="auth.can('view_custom_fields')"
+        class="mt-6"
+        entity-type="subnet"
+        :entity-id="subnet.id"
+        :values="subnet.custom_fields"
+        :can-edit="auth.can('edit_subnet')"
+        @saved="onCustomFieldsSaved"
+      />
+
       <div class="card mt-6 overflow-x-auto">
+        <p v-if="notesErr" class="mb-2 text-sm text-red-500">{{ notesErr }}</p>
         <table class="w-full text-left text-sm">
           <thead>
             <tr class="border-b border-slate-200 dark:border-slate-700">
@@ -42,10 +102,15 @@ async function saveNotes(ipId: number, notes: string) {
             </tr>
           </thead>
           <tbody>
-          <tr v-for="ip in subnet.ip_addresses" :key="ip.id" class="border-b border-slate-100 dark:border-slate-800">
+            <tr
+              v-for="ip in subnet.ip_addresses"
+              :key="ip.id"
+              class="border-b border-slate-100 dark:border-slate-800"
+              :class="isDhcpRow(ip.hostname) ? 'bg-amber-50/80 italic dark:bg-amber-950/20' : ''"
+            >
               <td class="p-2 font-mono">{{ ip.ip }}</td>
-            <td class="p-2">
+              <td class="p-2" :class="isDhcpRow(ip.hostname) ? 'text-amber-700 dark:text-amber-400' : ''">
-              <RouterLink v-if="ip.device_id" :to="`/devices/${ip.device_id}`" class="text-accent hover:underline">{{ ip.device_name || ip.hostname }}</RouterLink>
+                <RouterLink v-if="ip.device_id" :to="`/devices/${ip.device_id}`" class="text-accent hover:underline not-italic">{{ ip.device_name || ip.hostname }}</RouterLink>
                 <span v-else>{{ ip.hostname || "—" }}</span>
               </td>
               <td class="p-2">
@@ -61,9 +126,14 @@ async function saveNotes(ipId: number, notes: string) {
                 <button type="button" class="text-xs text-accent hover:underline" @click="historyIp = ip.ip">History</button>
               </td>
             </tr>
+            <tr v-if="!subnet.ip_addresses?.length">
+              <td colspan="4" class="p-4 text-center text-slate-500">No IP addresses in this subnet.</td>
+            </tr>
           </tbody>
         </table>
       </div>
       <IpHistoryModal :ip="historyIp" @close="historyIp = null" />
+      <DhcpModal :open="showDhcp" :subnet-id="subnet.id" @close="showDhcp = false" @saved="loadSubnet" />
+    </template>
   </div>
 </template>

frontend/src/views/SubnetsBrowseView.vue

@@ -0,0 +1,78 @@
+<script setup lang="ts">
+import { ref, onMounted, computed } from "vue";
+import { RouterLink } from "vue-router";
+import { api, type Subnet } from "@/api";
+
+const subnets = ref<Subnet[]>([]);
+const loading = ref(true);
+const error = ref("");
+
+const bySite = computed(() => {
+  const m: Record<string, Subnet[]> = {};
+  for (const s of subnets.value) {
+    const site = s.site || "Unassigned";
+    if (!m[site]) m[site] = [];
+    m[site].push(s);
+  }
+  return m;
+});
+
+const siteOrder = computed(() =>
+  Object.keys(bySite.value).sort((a, b) => {
+    if (a === "Unassigned") return -1;
+    if (b === "Unassigned") return 1;
+    return a.localeCompare(b);
+  }),
+);
+
+onMounted(async () => {
+  try {
+    subnets.value = await api.subnets(true);
+  } catch (e) {
+    error.value = e instanceof Error ? e.message : "Failed to load subnets";
+  } finally {
+    loading.value = false;
+  }
+});
+</script>
+<template>
+  <div>
+    <h1 class="text-2xl font-bold">Subnets</h1>
+    <p class="mt-1 text-slate-500">Browse subnets grouped by site</p>
+    <p v-if="loading" class="mt-8 text-slate-500">Loading…</p>
+    <p v-else-if="error" class="mt-8 text-red-500">{{ error }}</p>
+    <p v-else-if="!subnets.length" class="mt-8 text-slate-500">No subnets yet.</p>
+    <div v-else class="mt-6 space-y-8">
+      <section v-for="site in siteOrder" :key="site">
+        <h2 class="mb-3 text-lg font-semibold text-accent">{{ site }}</h2>
+        <div class="grid gap-3 sm:grid-cols-2 lg:grid-cols-3">
+          <RouterLink
+            v-for="s in bySite[site]"
+            :key="s.id"
+            :to="`/subnets/${s.id}`"
+            class="card block transition hover:border-accent/50"
+          >
+            <div class="font-medium">{{ s.name }}</div>
+            <div class="mt-1 flex flex-wrap items-center gap-2">
+              <span class="font-mono text-sm text-slate-500">{{ s.cidr }}</span>
+              <span
+                v-if="s.vlan_id"
+                class="rounded-full bg-surface-overlay px-2 py-0.5 text-xs font-semibold text-slate-600 dark:text-slate-300"
+              >VLAN {{ s.vlan_id }}</span>
+            </div>
+            <div class="mt-3">
+              <div class="h-2 overflow-hidden rounded-full bg-surface-overlay">
+                <div
+                  class="h-full rounded-full transition-all"
+                  :class="(s.utilization ?? 0) >= 90 ? 'bg-red-500' : 'bg-accent'"
+                  :style="{ width: `${s.utilization ?? 0}%` }"
+                />
+              </div>
+              <div class="mt-1 text-xs text-slate-500">{{ s.utilization ?? 0 }}% used</div>
+            </div>
+          </RouterLink>
+        </div>
+      </section>
+    </div>
+  </div>
+</template>

frontend/src/views/SubnetsView.vue

@@ -89,11 +89,26 @@ async function del(id: number) {
       <p v-if="err" class="text-sm text-red-500 sm:col-span-3">{{ err }}</p>
     </form>
     <ul class="mt-8 space-y-2">
-      <li v-for="s in subnets" :key="s.id" class="card flex flex-wrap items-center justify-between gap-2">
+      <li
+        class="hidden px-4 text-xs font-medium text-slate-500 sm:grid sm:grid-cols-[minmax(0,1.5fr)_minmax(9rem,1fr)_5.5rem_auto] sm:items-center sm:gap-4"
+      >
+        <span>Name</span>
+        <span>CIDR</span>
+        <span>VLAN</span>
+        <span class="text-right">Actions</span>
+      </li>
+      <li
+        v-for="s in subnets"
+        :key="s.id"
+        class="card grid grid-cols-1 gap-2 sm:grid-cols-[minmax(0,1.5fr)_minmax(9rem,1fr)_5.5rem_auto] sm:items-center sm:gap-4"
+      >
         <RouterLink :to="`/subnets/${s.id}`" class="font-medium text-accent hover:underline">{{ s.name }}</RouterLink>
         <span class="font-mono text-sm text-slate-500">{{ s.cidr }}</span>
-        <span v-if="s.vlan_id" class="rounded-full bg-surface-overlay px-2 py-0.5 text-xs">VLAN {{ s.vlan_id }}</span>
+        <span class="text-xs">
-        <div class="flex gap-2">
+          <span v-if="s.vlan_id" class="inline-block rounded-full bg-surface-overlay px-2 py-0.5">VLAN {{ s.vlan_id }}</span>
+          <span v-else class="text-slate-500">—</span>
+        </span>
+        <div class="flex gap-2 sm:justify-end">
           <button v-if="auth.can('edit_subnet')" class="text-sm text-accent hover:underline" @click="openEdit(s)">Edit</button>
           <button v-if="auth.can('delete_subnet')" class="text-sm text-red-500" @click="del(s.id)">Delete</button>
         </div>

frontend/src/views/TagsView.vue

@@ -1,25 +1,51 @@
 <script setup lang="ts">
 import { ref, onMounted } from "vue";
 import { api, type Tag } from "@/api";
+import { useAuthStore } from "@/stores/auth";
 
+const auth = useAuthStore();
 const tags = ref<Tag[]>([]);
 const form = ref({ name: "", color: "#06b6d4", description: "" });
 const editForm = ref({ id: 0, name: "", color: "#06b6d4", description: "" });
 const showEdit = ref(false);
+const loading = ref(true);
 const err = ref("");
 
-onMounted(async () => { tags.value = await api.tags(); });
+async function load() {
+  loading.value = true;
+  err.value = "";
+  try {
+    tags.value = await api.tags();
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed to load tags";
+    tags.value = [];
+  } finally {
+    loading.value = false;
+  }
+}
+
+onMounted(load);
 
 async function create() {
+  err.value = "";
+  try {
     await api.createTag(form.value);
-  tags.value = await api.tags();
     form.value = { name: "", color: "#06b6d4", description: "" };
+    await load();
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed";
+  }
 }
 
 async function del(id: number) {
   if (!confirm("Delete tag?")) return;
+  err.value = "";
+  try {
     await api.deleteTag(id);
-  tags.value = await api.tags();
+    await load();
+  } catch (e) {
+    err.value = e instanceof Error ? e.message : "Failed";
+  }
 }
 
 function openEdit(t: Tag) {
@@ -37,7 +63,7 @@ async function saveEdit() {
       description: editForm.value.description,
     });
     showEdit.value = false;
-    tags.value = await api.tags();
+    await load();
   } catch (e) {
     err.value = e instanceof Error ? e.message : "Failed";
   }
@@ -46,21 +72,25 @@ async function saveEdit() {
 <template>
   <div>
     <h1 class="text-2xl font-bold">Tags</h1>
-    <form class="card mt-6 flex flex-wrap gap-3" @submit.prevent="create">
+    <form v-if="auth.can('add_tag')" class="card mt-6 flex flex-wrap gap-3" @submit.prevent="create">
       <input v-model="form.name" class="input-field max-w-xs" placeholder="Name" required />
       <input v-model="form.color" type="color" class="h-10 w-14 rounded border-0" />
       <input v-model="form.description" class="input-field max-w-xs" placeholder="Description" />
       <button class="btn-primary">Add tag</button>
     </form>
-    <ul class="mt-6 space-y-2">
+    <p v-if="loading" class="mt-6 text-slate-500">Loading…</p>
+    <p v-else-if="err && !tags.length" class="mt-6 text-red-500">{{ err }}</p>
+    <p v-else-if="!tags.length" class="mt-6 text-slate-500">No tags yet.</p>
+    <ul v-else class="mt-6 space-y-2">
       <li v-for="t in tags" :key="t.id" class="card flex items-center justify-between">
         <span><span class="inline-block h-3 w-3 rounded-full mr-2" :style="{ backgroundColor: t.color }" />{{ t.name }}</span>
-        <div class="flex gap-2">
+        <div v-if="auth.can('edit_tag') || auth.can('delete_tag')" class="flex gap-2">
-          <button class="text-sm text-accent hover:underline" @click="openEdit(t)">Edit</button>
+          <button v-if="auth.can('edit_tag')" class="text-sm text-accent hover:underline" @click="openEdit(t)">Edit</button>
-          <button class="text-sm text-red-500" @click="del(t.id)">Delete</button>
+          <button v-if="auth.can('delete_tag')" class="text-sm text-red-500" @click="del(t.id)">Delete</button>
         </div>
       </li>
     </ul>
+    <p v-if="err && tags.length" class="mt-4 text-sm text-red-500">{{ err }}</p>
 
     <div v-if="showEdit" class="fixed inset-0 z-50 flex items-center justify-center bg-black/40 p-4" @click.self="showEdit = false">
       <form class="card w-full max-w-md space-y-3" @submit.prevent="saveEdit">

frontend/src/views/UsersView.vue

@@ -140,10 +140,21 @@ async function delRole(id: number) {
         <button v-if="auth.can('manage_users')" class="btn-primary text-sm" @click="openAddUser">Add user</button>
       </div>
       <ul class="space-y-2">
-        <li v-for="u in users" :key="u.id" class="card flex flex-wrap items-center justify-between gap-2">
+        <li
-          <span>{{ u.name }} <span class="text-slate-500">&lt;{{ u.email }}&gt;</span></span>
+          class="hidden px-4 text-xs font-medium text-slate-500 sm:grid sm:grid-cols-[minmax(0,1fr)_8rem_13rem] sm:items-center sm:gap-4"
+        >
+          <span>User</span>
+          <span>Role</span>
+          <span v-if="auth.can('manage_users')" class="text-right">Actions</span>
+        </li>
+        <li
+          v-for="u in users"
+          :key="u.id"
+          class="card grid grid-cols-1 gap-2 sm:grid-cols-[minmax(0,1fr)_8rem_13rem] sm:items-center sm:gap-4"
+        >
+          <span class="min-w-0">{{ u.name }} <span class="text-slate-500">&lt;{{ u.email }}&gt;</span></span>
           <span class="text-sm text-slate-500">{{ u.role_name }}</span>
-          <div v-if="auth.can('manage_users')" class="flex gap-2">
+          <div v-if="auth.can('manage_users')" class="flex gap-2 sm:justify-end">
             <button class="text-sm text-accent hover:underline" @click="openEditUser(u)">Edit</button>
             <button class="text-sm text-accent hover:underline" @click="regenKey(u.id)">API key</button>
             <button class="text-sm text-red-500 hover:underline" @click="delUser(u.id)">Delete</button>

run.sh

@@ -1,8 +1,6 @@
 #!/bin/bash
 set -e
-if [ ! -f static/dist/index.html ]; then
+echo "Building frontend..."
-  echo "Building frontend..."
+(cd frontend && npm ci && npm run build)
-  (cd frontend && npm ci && npm run build)
-fi
 echo "Starting app..."
 python app.py

v1-to-v2-breaking-changes.md

@@ -53,7 +53,8 @@ v2 removes **all Jinja/HTML routes**. The UI is a Vue 3 SPA served from `static/
 | `/api/v1/*` | **`/api/v2/*`** (v1 removed) |
 | Session via HTML login forms | `POST /api/v2/auth/login` + session cookie |
 | API key only on API routes | **Same routes** accept session cookie **or** API key |
-| `{ "devices": [...] }` list responses | **`{ "items": [...] }`** for list endpoints (where normalized) |
+| `{ "devices": [...] }` list responses | **`{ "items": [...] }`** for all list endpoints |
+| `{ "tags" }`, `{ "users" }`, `{ "roles" }`, `{ "racks" }`, `{ "logs" }`, `{ "fields" }` wrappers | **`{ "items" }`** (audit also includes `total`; devices-by-tag includes `meta`) |
 
 ### Version