docs: update comprehensive API documentation and project guides

This commit updates all documentation files throughout the project:

- Updated IMPLEMENTATION_PLAN.md with new implementation details
- Updated PROJECT_GUIDELINES.md with coding standards and practices
- Updated README.md with current project information
- Updated SCREENSHOT_AUTOMATION.md with new automation details
- Added TEST_DATA.md with test fixtures data
- Updated cover_image_serving_plan.md with static URL patterns

Documentation API updates:
- Updated API reference documentation for all endpoints including:
  - Authentication (login, logout, register, refresh_token)
  - Book matching (auto_link, bulk_link, link_book, search)
  - Collections (CRUD operations, shelf mappings, auto-assign rules)
  - Conflicts (bulk operations, resolve/dismiss)
  - Devices (registration, approval, shelf management)
  - Highlights (create, update, delete, get)
  - Kobo sync (bookmark, markup, initialization, sync)
  - KOReader sync (library, metadata, bookmarks, progress)
  - Libraries (CRUD, folders, media items, stats)
  - Media items (bulk operations, CRUD)
  - Notes (CRUD operations)
  - OPDS (acquisition, feeds, publication)
  - Progress (reading progress tracking)
  - Queue (device queue management)
  - Ratings (star ratings)
  - Scanner (watch mode, scan operations)
  - Sync protocols (Kobo, KOReader)
  - Users (profile, password, admin operations)
  - WebSocket protocols

- Updated user guides (admin, dashboard, settings, sync)
- Updated device setup guides (Kobo, KOReader)
- Updated developer guides (testing, contributing, operations)
- Updated scripts/README.md

docs/developer/api/opds/acquisition.md

@@ -9,9 +9,9 @@ Download books and list available formats.
 
 ### Query Parameters
 
-| Parameter | Type | Required | Description |
-|-----------|------|-----------|-------------|
-| format | string | No | Book format: `epub` (default), `kepub` |
+| Parameter | Type   | Required | Description                            |
+| --------- | ------ | -------- | -------------------------------------- |
+| format    | string | No       | Book format: `epub` (default), `kepub` |
 
 ### Example Request
 
@@ -22,6 +22,7 @@ GET /opds/devices/kobo-id/download/uuid-123?format=kepub
 ### Response (200 OK)
 
 **Headers:**
+
 - `Content-Type`: `application/epub+zip` or `application/vnd.kobo+xml+zip`
 - `Content-Disposition`: attachment; filename="The Hobbit.epub"
 - `X-Bookhoard-UUID`: uuid-123

docs/developer/api/opds/feeds.md

@@ -9,10 +9,10 @@ Bookhoard provides OPDS 1.2 feeds for device compatibility.
 
 ### Query Parameters
 
-| Parameter | Type | Required | Description |
-|-----------|------|-----------|-------------|
-| page | integer | No | Page number (default: 1) |
-| per_page | integer | No | Items per page (default: 50, max: 200) |
+| Parameter | Type    | Required | Description                            |
+| --------- | ------- | -------- | -------------------------------------- |
+| page      | integer | No       | Page number (default: 1)               |
+| per_page  | integer | No       | Items per page (default: 50, max: 200) |
 
 ### Example Request
 
@@ -24,31 +24,31 @@ GET /opds/devices/kobo-id/catalog?page=1&per_page=50
 
 ```xml
 <?xml version="1.0" encoding="UTF-8"?>
-<feed xmlns="http://www.w3.org/2005/Atom" 
+<feed xmlns="http://www.w3.org/2005/Atom"
        xmlns:opds="http://opds-spec.org/2010/"
        xmlns:dc="http://purl.org/dc/elements/1.1/">
   <id>urn:uuid:device-id</id>
   <title>Bookhoard Library</title>
   <updated>2026-02-01T12:00:00Z</updated>
-  
+
   <link rel="self" href="http://localhost:8765/opds/devices/kobo-id/catalog"/>
   <link rel="search" href="http://localhost:8765/opds/devices/kobo-id/search"/>
   <link rel="start" href="http://localhost:8765/opds/devices/kobo-id/nav"/>
-  
+
   <entry>
     <id>urn:uuid:bookhoard-uuid-123</id>
     <dc:title>The Hobbit</dc:title>
     <dc:creator>J.R.R. Tolkien</dc:creator>
     <updated>2026-02-01T10:00:00Z</updated>
-    
-    <link href="http://localhost:8765/opds/devices/kobo-id/download/uuid-123" 
-          type="application/epub+zip" 
+
+    <link href="http://localhost:8765/opds/devices/kobo-id/download/uuid-123"
+          type="application/epub+zip"
           rel="http://opds-spec.org/acquisition/open-access"/>
-    
-    <link href="http://localhost:8765/opds/devices/kobo-id/download/uuid-123?format=kepub" 
-          type="application/vnd.kobo+xml+zip" 
+
+    <link href="http://localhost:8765/opds/devices/kobo-id/download/uuid-123?format=kepub"
+          type="application/vnd.kobo+xml+zip"
           rel="alternate"/>
-    
+
     <dc:identifier id="bookhoard">uuid-123</dc:identifier>
     <meta property="bookhoard:sha256">abc123...</meta>
   </entry>
@@ -62,9 +62,9 @@ GET /opds/devices/kobo-id/catalog?page=1&per_page=50
 
 ### Query Parameters
 
-| Parameter | Type | Required | Description |
-|-----------|------|-----------|-------------|
-| q | string | Yes | Search query |
+| Parameter | Type   | Required | Description  |
+| --------- | ------ | -------- | ------------ |
+| q         | string | Yes      | Search query |
 
 ### Example Request
 

docs/developer/api/opds/publication.md

@@ -16,6 +16,7 @@ GET /opds/devices/kobo-id/nav
 ### Response (200 OK - OPDS 1.2 Navigation XML)
 
 Returns OPDS navigation feed with links to:
+
 - Root catalog
 - Search
 - Collections/shelves