Add interactive ebook search & selection

Introduce interactive ebook support: adds two API endpoints to search (interactive-search-ebook) and create/select ebook requests (select-ebook), plus server-side handlers to route Anna's Archive (direct) and indexer (torrent/NZB) downloads. Frontend: extend RequestActionsDropdown and InteractiveTorrentSearchModal to support an "ebook" search mode and selection flow, and add hooks (useInteractiveSearchEbook / useSelectEbook). Settings: add ebook_auto_grab_enabled with UI toggle and enforce disabling when no ebook sources are enabled; settings GET/PUT updated to persist the flag (default = true to preserve behavior). Documentation updated (scheduler, ebook-sidecar, settings pages) and ranking algorithm docs/tests extended to cover ebook-related normalization and matching cases. Includes logging and ranking integration for indexer results and normalization for Anna's Archive handling.

documentation/phase3/ranking-algorithm.md

@@ -1,7 +1,7 @@
 # Intelligent Ranking Algorithm
 
 **Status:** ✅ Implemented | Comprehensive edge case test coverage
-**Tests:** tests/utils/ranking-algorithm.test.ts (73 test cases)
+**Tests:** tests/utils/ranking-algorithm.test.ts (80+ test cases)
 
 Evaluates and scores torrents to automatically select best audiobook download.
 
@@ -19,6 +19,7 @@ Evaluates and scores torrents to automatically select best audiobook download.
 - ✅ **Author presence check (10 tests)**
 - ✅ **Context-aware filtering (3 tests)**
 - ✅ **API compatibility (2 tests)**
+- ✅ **CamelCase and punctuation separator handling (7 tests)**
 
 **Tested edge cases prevent regressions from previous tweaks:**
 - "We Are Legion (We Are Bob)" matching with/without subtitle
@@ -35,6 +36,18 @@ Evaluates and scores torrents to automatically select best audiobook download.
 
 **1. Title/Author Match (60 pts max) - MOST IMPORTANT**
 
+**Pre-Processing: Text Normalization**
+- All titles and author names are normalized before matching
+- **CamelCase splitting:** `"TheCorrespondent"` → `"the correspondent"`
+- **Punctuation to spaces:** `"Twelve.Months-Jim"` → `"twelve months jim"`
+- **Preserves apostrophes:** `"O'Brien"` remains `"o'brien"`
+- Handles common indexer naming patterns (NZB, torrent scene releases)
+
+**Examples of normalization:**
+- `"VirginaEvans TheCorrespondent"` → `"virgina evans the correspondent"`
+- `"Twelve.Months-Jim.Butcher"` → `"twelve months jim butcher"`
+- `"Author_Name-Book.Title.2024"` → `"author name book title 2024"`
+
 **Multi-Stage Matching:**
 
 **Stage 1: Word Coverage Filter (MANDATORY)**