feat: 交互协调器拆分、附件提示、暗色图片适配、选区放大镜及文档清理

- 拆分 ContentDelegates/TextContentView 为独立协调器（InteractionCoordinator、LocationResolution、ExternalLinks、AttachmentTooltip）
- 新增 RDEPUBAttachmentTooltipView/OverlayView 附件气泡提示
- 新增 RDEPUBDarkImageAdjuster 暗色模式图片亮度适配
- 新增 RDEPUBSelectionLoupeView 选区放大镜
- 新增 MetadataParseWorker/CancellationController 元数据解析取消机制
- 重构 PresentationRuntime/PaginationCoordinator 精简职责
- 优化 ChapterLoader/WarmupOrchestrator 异步章节加载
- CFI 模块微调与 NoteModels 更新
- 清理冗余文档，更新架构/UML/业务逻辑文档

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

Sources/RDReaderView/EPUBTextRendering/RDEPUBTextIndexTable.swift

@@ -102,8 +102,8 @@ public struct RDEPUBTextIndexTable {
     }
 
     public func anchor(for location: RDEPUBLocation) -> RDEPUBTextAnchor? {
-        if let cfi = RDEPUBCFICompatibility.parseLossy(location.cfi),
-           let anchor = anchor(for: cfi) {
+        if let cfiRange = RDEPUBCFICompatibility.parseRangeLossy(location.rangeCFI),
+           let anchor = anchor(for: cfiRange.start) {
             return anchor
         }
 
@@ -111,6 +111,11 @@ public struct RDEPUBTextIndexTable {
             return anchor
         }
 
+        if let cfi = RDEPUBCFICompatibility.parseLossy(location.cfi),
+           let anchor = anchor(for: cfi) {
+            return anchor
+        }
+
         guard let chapterIndex = hrefToChapterIndex[location.href],
               let fileIndex = hrefToFileIndex[location.href] else { return nil }
         let fragments = fragmentOffsetsByHref[location.href] ?? [:]