Remove all RDEPUBBackgroundTrace.log and bare print diagnostic calls

Keep only the evaluateFullPageMapTakeover: fullReplace diagnostic log
in RDEPUBPageMapReconciliationCoordinator.swift for future debugging.

Simplified RDEPUBBackgroundTrace to just the log method (removed measure
and debug gating). Removed all [EPUB][...], [ReadViewDemo], and
[EPUB][Pagination] print statements across the project.

Also includes earlier bug fixes:
- Fix stale currentPageNumber in extendPartial commit
- Fix pageCurl rebindVisiblePage during transition
- Fix keepCurrentWindow not removing pending update from queue
- Fix right-aligned text (巫鸿 bug) via avoidPageBreakInside,
  tail merger, and continuation paragraph normalization
- Add text-indent reset for aligned blocks in CSS compatibility layer

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

Sources/RDReaderView/EPUBCore/Models/RDEPUBAnnotationModels.swift

@@ -199,6 +199,8 @@ public struct RDEPUBBookmark: Codable, Equatable {
 
     public var location: RDEPUBLocation
 
+    public var rangeInfo: String?
+
     public var chapterTitle: String?
 
     public var note: String?
@@ -209,6 +211,7 @@ public struct RDEPUBBookmark: Codable, Equatable {
         id: String = UUID().uuidString,
         bookIdentifier: String? = nil,
         location: RDEPUBLocation,
+        rangeInfo: String? = nil,
         chapterTitle: String? = nil,
         note: String? = nil,
         createdAt: Date = Date()
@@ -216,6 +219,7 @@ public struct RDEPUBBookmark: Codable, Equatable {
         self.id = id
         self.bookIdentifier = bookIdentifier
         self.location = location
+        self.rangeInfo = rangeInfo?.nilIfEmpty
         self.chapterTitle = chapterTitle?.nilIfEmpty
         self.note = note?.nilIfEmpty
         self.createdAt = createdAt
@@ -288,7 +292,7 @@ public struct RDEPUBAnnotation: Codable, Equatable {
             kind: .bookmark,
             location: bookmark.location,
             text: nil,
-            rangeInfo: nil,
+            rangeInfo: bookmark.rangeInfo,
             color: nil,
             chapterTitle: bookmark.chapterTitle,
             note: bookmark.note,
@@ -302,6 +306,7 @@ public struct RDEPUBAnnotation: Codable, Equatable {
             id: id,
             bookIdentifier: bookIdentifier,
             location: location,
+            rangeInfo: rangeInfo,
             chapterTitle: chapterTitle,
             note: note,
             createdAt: createdAt