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/EPUBUI/ReaderController/RDEPUBReaderPaginationCoordinator.swift

@@ -28,14 +28,8 @@ final class RDEPUBReaderPaginationCoordinator {
         controller.showLoading()
         let token = UUID()
         context.paginationToken = token
-        #if DEBUG
-        print("[EPUB][Pagination] profile=\(publication.readingProfile.rawValue) layout=\(publication.layout.rawValue) spine=\(publication.spine.count)")
-        #endif
 
         if publication.readingProfile == .textReflowable {
-            #if DEBUG
-            print("[EPUB][Pagination] path=text-reflowable-on-demand")
-            #endif
             paginateTextPublication(
                 parser: parser,
                 publication: publication,
@@ -47,9 +41,6 @@ final class RDEPUBReaderPaginationCoordinator {
         }
 
         if publication.layout == .fixed {
-            #if DEBUG
-            print("[EPUB][Pagination] path=fixed-layout")
-            #endif
             let snapshot = readingSession.makePaginationSnapshot(
                 pageCounts: Array(repeating: 1, count: publication.spine.count),
                 preferences: controller.currentPreferences(),
@@ -60,9 +51,6 @@ final class RDEPUBReaderPaginationCoordinator {
         }
 
         let paginator = context.makePaginator()
-        #if DEBUG
-        print("[EPUB][Pagination] path=web-paginator")
-        #endif
         context.paginator = paginator
         paginator.calculate(
             parser: parser,
@@ -143,31 +131,15 @@ final class RDEPUBReaderPaginationCoordinator {
     func refreshVisibleContentPreservingLocation() {
         guard let readerView = context.readerView else { return }
         if readerView.isPageCurlTransitioning {
-            RDEPUBBackgroundTrace.log(
-                "LoadingPage",
-                "defer refreshVisibleContent currentPage=\(readerView.currentPage + 1) reason=pageCurlTransition"
-            )
             DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) { [weak self] in
                 self?.refreshVisibleContentPreservingLocation()
             }
             return
         }
         let restoreLocation = context.currentVisibleLocation() ?? context.persistenceLocation()
-        RDEPUBBackgroundTrace.log(
-            "LoadingPage",
-            "refreshVisibleContentPreservingLocation currentPage=\(readerView.currentPage + 1) restoreHref=\(restoreLocation?.href ?? "nil") restoreCFI=\(restoreLocation?.cfi ?? "nil")"
-        )
         if readerView.currentDisplayType == .pageCurl, readerView.currentPage >= 0 {
-            RDEPUBBackgroundTrace.log(
-                "LoadingPage",
-                "refreshVisibleContent using transitionToPage currentPage=\(readerView.currentPage + 1)"
-            )
             readerView.transitionToPage(pageNum: readerView.currentPage, animated: false)
         } else {
-            RDEPUBBackgroundTrace.log(
-                "LoadingPage",
-                "refreshVisibleContent using reloadData currentPage=\(readerView.currentPage + 1)"
-            )
             readerView.reloadData()
         }
         if let restoreLocation {
@@ -220,22 +192,9 @@ final class RDEPUBReaderPaginationCoordinator {
             do {
                 guard context.controller != nil,
                       let runtime = context.runtime else { return }
-                RDEPUBBackgroundTrace.log(
-                    "QuickOpen",
-                    "begin token=\(token.uuidString) candidates=\(prioritizedCandidates.count) restoreSpine=\(readingSession.initialSpineIndex(for: restoreLocation))"
-                )
-                let runtimeChapter = try RDEPUBBackgroundTrace.measure(
-                    "QuickOpen",
-                    "loadFirstRenderableRuntimeChapter"
-                ) {
-                    try self.loadFirstRenderableRuntimeChapter(
-                        prioritizedSpineIndices: prioritizedCandidates,
-                        runtime: runtime
-                    )
-                }
-                RDEPUBBackgroundTrace.log(
-                    "QuickOpen",
-                    "ready anchorSpine=\(runtimeChapter.spineIndex) pages=\(runtimeChapter.pages.count)"
+                let runtimeChapter = try self.loadFirstRenderableRuntimeChapter(
+                    prioritizedSpineIndices: prioritizedCandidates,
+                    runtime: runtime
                 )
                 let initialChapters = self.loadInitialInteractiveRuntimeChapters(
                     anchorChapter: runtimeChapter,
@@ -290,7 +249,6 @@ final class RDEPUBReaderPaginationCoordinator {
                 )
             } catch {
                 lastError = error
-                RDEPUBBackgroundTrace.log("QuickOpen", "skip spine=\(spineIndex) reason=\(error)")
             }
         }
         throw lastError ?? RDEPUBParserError.emptySpine
@@ -329,10 +287,6 @@ final class RDEPUBReaderPaginationCoordinator {
                     )
                     selectedChapters.append(chapter)
                 } catch {
-                    RDEPUBBackgroundTrace.log(
-                        "QuickOpen",
-                        "lookahead skip spine=\(spineIndex) reason=\(error)"
-                    )
                 }
             }