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>

Sources/RDReaderView/EPUBUI/RDEPUBReaderController.swift

@@ -6,10 +6,12 @@ public final class RDEPUBReaderController: UIViewController {
 
     public var configuration: RDEPUBReaderConfiguration {
         didSet {
+            // M-09: Apply all configuration side effects even before view is loaded,
+            // but UI-dependent actions only after view is loaded.
             readerContext.configuration = configuration
+            guard isViewLoaded else { return }
             applyWebViewDebugPolicy()
             persistReaderSettingsIfNeeded()
-            guard isViewLoaded else { return }
             let oldConfiguration = oldValue
             applyReaderViewConfiguration()
 
@@ -176,11 +178,6 @@ public final class RDEPUBReaderController: UIViewController {
         set { readerContext.paginationToken = newValue }
     }
 
-    var paginator: RDEPUBPaginator? {
-        get { readerContext.paginator }
-        set { readerContext.paginator = newValue }
-    }
-
     var searchState: RDEPUBSearchState? {
         get { readerContext.searchState }
         set { readerContext.searchState = newValue }
@@ -291,6 +288,11 @@ public final class RDEPUBReaderController: UIViewController {
         runtime.viewportMonitor.viewDidLayoutSubviews()
     }
 
+    public override func didReceiveMemoryWarning() {
+        super.didReceiveMemoryWarning()
+        runtime.handleMemoryWarning()
+    }
+
     public override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
         super.viewWillTransition(to: size, with: coordinator)
         runtime.viewportMonitor.viewWillTransition(with: coordinator)