feat: chapter runtime refactoring and related updates

- Refactor chapter runtime: replace window coordinator/snapshot with warmup orchestrator
- Update EPUB core: parser, reading session, JS bridge, navigator layout
- Update reader controller: data source, location resolution, persistence
- Update chapter runtime: data cache, loader, runtime store, disk cache, warmup orchestrator
- Remove deprecated navigation state machine and pagination state
- Update text rendering: book cache, HTML normalizer
- Update UI: text content view, dark image adjuster, text selection controller
- Update settings and reader configuration
- Add CODE_REVIEW.md and AUDIT_FINAL.md documentation
- Update pod dependencies (remove SSAlertSwift, SnapKit)
- Update podspec and pod configuration files

Co-Authored-By: Claude <noreply@anthropic.com>

Doc/ARCHITECTURE.md

@@ -251,8 +251,7 @@ RDEPUBReaderController
     ├─ RDEPUBPresentationRuntime             // 分页状态与窗口替换
     │   ├─ applyBookPageMap()
     │   ├─ refreshBookPageMapInPlace()
-    │   ├─ applyPendingFullPageMapIfNeeded()
-    │   └─ RDEPUBNavigationStateMachine
+    │   └─ applyPendingFullPageMapIfNeeded()
     │
     ├─ RDEPUBChapterWarmupOrchestrator       // 按需章节预热与边界预取
     │   ├─ prepareOnDemandChapter()
@@ -495,7 +494,6 @@ Sources/RDReaderView/
 | **Builder** | `RDEPUBBookPageMap.Builder` 增量构建页码映射 |
 | **Strategy** | `RDEPUBTextRenderer` 协议，可替换渲染器实现 |
 | **Pipeline** | `RDEPUBTextTypesetterPipeline` 排版管线（8 个逻辑阶段，封装为 5-6 个顶层调用） |
-| **State Machine** | `RDEPUBNavigatorState` 管理阅读器状态转换 |
 | **Adapter** | `RDReaderLegacyDataSourceAdapter` 适配旧数据源协议 |
 | **三级缓存** | 内存 → 磁盘摘要 → 全书分页，逐级降级 |
 | **Token 取消** | `paginationToken` 确保过期异步任务不干扰新任务 |