Phase 2 Week 5: Device Registration & Management

Implement device registration and management system for universal sync.

Database Changes:
- Add device queries to queries.sql (CRUD operations, registration, auth)
- Add sync queue management queries
- Add conflict resolution queries
- Regenerate sqlc models with new device-related types

Device Handler (devices.go):
- InitiateRegistration: Start device registration with auth URL and QR code
- CheckRegistrationStatus: Poll for registration approval
- ListDevices: Get all devices for current user
- GetDevice: Get specific device details
- UpdateDevice: Update device settings (name, sync settings, frequency)
- DeleteDevice: Remove device from account
- ApproveDevice: User approves device registration via web
- RejectDevice: Reject pending device registration
- ListPendingRegistrations: Show all pending registrations
- generateDeviceToken: Generate secure Bearer token for devices

Device Authentication Middleware (device_auth.go):
- Authenticate: Validate device Bearer tokens
- RequirePermission: Check device permissions by type
- hasPermission: Define permissions per device type
- UpdateLastSeen: Auto-update device last_seen timestamp

Configuration:
- Add BaseURL field to Config for device setup URLs

API Endpoints:
POST /api/devices/register - Initiate device registration
POST /api/devices/register/status - Check registration status
GET /api/devices/approve/:id - Approve device (web UI)
POST /api/devices/reject/:id - Reject device
GET /api/devices - List user's devices
GET /api/devices/:id - Get device details
PUT /api/devices/:id - Update device settings
DELETE /api/devices/:id - Delete device
GET /api/devices/pending - List pending registrations

Bruno API Collection:
- Initiate Device Registration
- Check Registration Status
- List Devices
- Get Device
- Update Device
- Delete Device

Dependencies:
- github.com/skip2/go-qrcode for QR code generation

Device Types Supported:
- koreader: Calibre-compatible sync
- kobo: Kobo sync protocol
- web: Web interface
- mobile: Mobile apps

Device Permissions:
- sync:progress
- sync:annotations
- sync:metadata
- device:manage (web only)

bruno/devices/Check Registration Status.bru

@@ -0,0 +1,17 @@
+meta {
+  name: Check Registration Status
+  type: http
+  seq: 2
+}
+
+post {
+  url: {{baseUrl}}/api/devices/register/status
+  body: json
+  auth: none
+}
+
+body:json {
+  {
+    "registration_id": "{{registrationId}}"
+  }
+}

bruno/devices/Delete Device.bru

@@ -0,0 +1,15 @@
+meta {
+  name: Delete Device
+  type: http
+  seq: 6
+}
+
+delete {
+  url: {{baseUrl}}/api/devices/{{deviceId}}
+  body: none
+  auth: bearer
+}
+
+headers: {
+  Authorization: Bearer {{token}}
+}

bruno/devices/Get Device.bru

@@ -0,0 +1,15 @@
+meta {
+  name: Get Device
+  type: http
+  seq: 4
+}
+
+get {
+  url: {{baseUrl}}/api/devices/{{deviceId}}
+  body: none
+  auth: bearer
+}
+
+headers: {
+  Authorization: Bearer {{token}}
+}

bruno/devices/Initiate Device Registration.bru

@@ -0,0 +1,19 @@
+meta {
+  name: Initiate Device Registration
+  type: http
+  seq: 1
+}
+
+post {
+  url: {{baseUrl}}/api/devices/register
+  body: json
+  auth: none
+}
+
+body:json {
+  {
+    "device_name": "My Kindle Paperwhite",
+    "device_type": "koreader",
+    "device_identifier": "kindle-pw5-hardware-id-12345"
+  }
+}

bruno/devices/List Devices.bru

@@ -0,0 +1,15 @@
+meta {
+  name: List Devices
+  type: http
+  seq: 3
+}
+
+get {
+  url: {{baseUrl}}/api/devices
+  body: none
+  auth: bearer
+}
+
+headers: {
+  Authorization: Bearer {{token}}
+}

bruno/devices/Update Device.bru

@@ -0,0 +1,24 @@
+meta {
+  name: Update Device
+  type: http
+  seq: 5
+}
+
+put {
+  url: {{baseUrl}}/api/devices/{{deviceId}}
+  body: json
+  auth: bearer
+}
+
+headers: {
+  Authorization: Bearer {{token}}
+}
+
+body:json {
+  {
+    "device_name": "My Updated Kindle",
+    "sync_enabled": true,
+    "auto_sync": true,
+    "sync_frequency_minutes": 10
+  }
+}