docs(user): align sync and user guides with current device support

- sync-guide: only Web and KOReader are fully supported; move Kobo to
  coming soon, drop fake Q2-Q4 2026 release dates for mobile/Kindle/
  Remarkable, and describe the plugin + server-approval registration
  flow instead of QR-code/URL approval
- sync-guide: remove cellular/mobile-app advice from battery and
  best-practice sections, correct the Calibre compatibility FAQ, update
  the changelog to reflect shipped vs. pending sync features, and fix
  the license header (GPL-3.0, not MIT)
- user-guide: lead device setup with KOReader; mark the Kobo guide as
  coming soon
- calibre-integration: OPDS client list no longer implies native Kobo
  support
- auth overview: label the mobile-application token guidance as
  'coming later' since no mobile apps exist yet

docs/developer/api/authentication/overview.md

@@ -158,7 +158,7 @@ The frontend toast.js interceptor:
 - **Backend**: Automatically manages HTTP-only cookie
 - **Frontend**: Store tokens in localStorage for API calls
 
-### Mobile Applications
+### Mobile Applications (coming later)
 
 - Store access token in secure storage (Keychain/Keystore)
 - Store refresh token in secure storage

docs/user/calibre-integration.md

@@ -259,12 +259,11 @@ Stay tuned for updates!
 
 ### OPDS Integration
 
-You can access your Bookhoard library (including Calibre-imported books) via OPDS from Calibre-aware devices:
+You can access your Bookhoard library (including Calibre-imported books) via OPDS from OPDS-capable clients:
-- Kobo e-readers
+- KOReader (Kindle, Kobo, PocketBook hardware)
-- KOReader
 - Phone/tablet apps (KYBook, Chunky, etc.)
 
-See the [Kobo Setup Guide](devices/kobo-setup.md) or [KOReader Setup Guide](devices/koreader-setup.md) for details.
+See the [KOReader Setup Guide](devices/koreader-setup.md) for details.
 
 ## FAQ
 

docs/user/sync-guide.md

@@ -21,7 +21,7 @@
 
 🔄 **Automatic Sync** - Your reading progress syncs automatically when you turn pages
 
-📱 **Multi-Platform** - Works with web browsers, KOReader, Kobo devices, and mobile apps
+📱 **Multi-Platform** - Works with web browsers and KOReader, with native Kobo sync and mobile apps on the roadmap
 
 📍 **Precise Location Tracking** - Supports EPUB CFI, page numbers, percentages, and character offsets
 
@@ -38,18 +38,23 @@
 ### Currently Supported ✅
 
 | Platform         | Status             | Sync Method                 | Notes                              |
-| ---------------- | ------------------ | --------------------------- | ------------------------------ |
+| ---------------- | ------------------ | --------------------------- | ---------------------------------- |
 | **Web Browser**  | ✅ Fully Supported | Real-time WebSocket         | Any modern browser                 |
-| **KOReader**     | ✅ Fully Supported | Wi-Fi (Calibre-compatible)  | Kindle, Kobo, PocketBook, etc. |
+| **KOReader**     | ✅ Fully Supported | Wi-Fi (Bookhoard plugin)    | Kindle, Kobo, PocketBook hardware  |
-| **Kobo Devices** | ✅ Fully Supported | Wi-Fi (Kobo API-compatible) | Clara, Libra, Sage, etc.       |
 
 ### Coming Soon 🚧
 
-| Platform              | Expected Release |
+| Platform              | Status                                                        |
-| --------------------- | ---------------- |
+| --------------------- | ------------------------------------------------------------- |
-| **Mobile Apps**       | Q2 2026          |
+| **Kobo Devices**      | Native sync coming soon — use KOReader on Kobo hardware today |
-| **Kindle Devices**    | Q3 2026          |
+| **Mobile Apps**       | Android/iOS apps coming later                                 |
-| **Remarkable Tablet** | Q4 2026          |
+
+### On the Roadmap 🔭
+
+| Platform              | Status                                   |
+| --------------------- | ---------------------------------------- |
+| **Kindle Devices**    | Under consideration (no date yet)        |
+| **Remarkable Tablet** | Under consideration (no date yet)        |
 
 ---
 
@@ -74,17 +79,16 @@
 
 For detailed device configuration instructions, see the appropriate setup guide:
 
-- **[Kobo Setup Guide](devices/kobo-setup.md)** - Kobo e-reader configuration
+- **[KOReader Setup Guide](devices/koreader-setup.md)** - KOReader configuration (Kindle, Kobo, and PocketBook hardware)
-- **[KOReader Setup Guide](devices/koreader-setup.md)** - KOReader configuration
+- **[Kobo Setup Guide](devices/kobo-setup.md)** - Native Kobo sync (coming soon; use KOReader today)
 
 ### Quick Overview
 
-**Registration Process**:
+**Registration Process** (KOReader):
 
-1. Register device in Bookhoard web interface (Settings → Devices)
+1. Install the Bookhoard plugin and enter your server URL in KOReader
-2. Approve device via QR code or approval URL
+2. Approve the pending registration in Bookhoard (**Settings → Devices**)
-3. Configure sync settings on your device
+3. That's it — sync starts automatically once approved
-4. Start reading - progress syncs automatically!
 
 **Device Management**:
 
@@ -331,7 +335,7 @@ This ensures your highlights work across all devices, even with different page c
 
 1. Switch to checkpoint mode
 2. Increase sync interval
-3. Use Wi-Fi instead of cellular (for mobile)
+3. Sync less frequently
 
 ---
 
@@ -341,7 +345,7 @@ This ensures your highlights work across all devices, even with different page c
 
 ✅ **DO**:
 
-- Use checkpoint mode when on cellular data
+- Use checkpoint mode when on slow connections
 - Keep device firmware updated
 - Use Wi-Fi when available
 - Approve only devices you own
@@ -369,7 +373,7 @@ This ensures your highlights work across all devices, even with different page c
 
 - **Primary Device**: KOReader on e-reader
 - **Secondary Device**: Web browser (work/home)
-- **Mobile Device**: Phone app (commute)
+- **On the go**: Web browser on a phone (dedicated mobile apps coming later)
 
 **Sync Strategy**:
 
@@ -503,9 +507,8 @@ Book → Reading History
 ### For Better Battery Life
 
 1. **Checkpoint mode** - Fewer sync requests
-2. **Wi-Fi only** - Disable cellular
+2. **Increase sync interval** - Fewer updates
-3. **Increase sync interval** - Fewer updates
+3. **Close when not reading** - Reduces background activity
-4. **Close when not reading** - Reduces background activity
 
 ---
 
@@ -537,7 +540,7 @@ A: Approximately 1KB per page turn, 50KB per annotation.
 A: Uses percentage and EPUB CFI for universal positioning.
 
 **Q: Can I sync with Calibre anymore?**
-A: Yes! KOReader sync is Calibre-compatible.
+A: Bookhoard's KOReader sync uses a dedicated plugin (server-side approval, device tokens) — no Calibre involvement required.
 
 **Q: What if I lose my device?**
 A: Revoke it in settings and register a new one.
@@ -571,18 +574,18 @@ A: Yes, HTTPS/TLS 1.3 for all sync traffic.
 
 ## Changelog
 
-### Version 1.0.0 (January 2026)
+### Version 1.0.x (2026)
 
-- ✅ Initial release
-- ✅ KOReader sync support
-- ✅ Kobo device support
 - ✅ Web sync support
+- ✅ KOReader sync (progress, bookmarks, highlights, notes)
 - ✅ Conflict resolution
 - ✅ Offline queue
 - ✅ Real-time WebSocket sync
+- 🚧 Native Kobo sync (coming soon)
+- 🚧 Mobile apps (coming later)
 
 ---
 
-**Last Updated**: January 31, 2026  
+**Last Updated**: August 2026  
-**Version**: 1.0.0  
+**Version**: 1.0  
-**License**: MIT
+**License**: GPL-3.0

docs/user/user-guide.md

@@ -6,18 +6,16 @@ Welcome to the Bookhoard user documentation. This section contains guides for us
 
 Learn how to configure your e-reader devices to sync with Bookhoard:
 
-- **[Kobo Setup Guide](devices/kobo-setup.md)** - Complete guide for Kobo e-readers
-  - Device registration
-  - Sync configuration
-  - OPDS wireless book delivery
-  - Troubleshooting
-
 - **[KOReader Setup Guide](devices/koreader-setup.md)** - Complete guide for KOReader
   - Installation on Kindle/Kobo/PocketBook
-  - Sync setup
+  - Plugin setup with server-side device approval
+  - Progress, bookmark, highlight, and note sync
   - OPDS catalog access
   - Troubleshooting
 
+- **[Kobo Setup Guide](devices/kobo-setup.md)** - Native Kobo sync (coming soon)
+  - In the meantime, KOReader works great on Kobo hardware
+
 ## 🔄 Sync Configuration
 
 - **[Universal Sync Guide](sync-guide.md)** - Understanding and using sync features