Ports upstream PR #1342 (feat: Add Book Info screen, richer metadata,
and safer file-browser controls) with mod-specific adaptations:
- Parse and cache series, seriesIndex, description from EPUB OPF
- Bump book.bin cache version to 6 for new metadata fields
- Add BookInfoActivity (new screen) accessible via Right button in FileBrowser
- Add ManageBook menu via Left button in FileBrowser (replaces upstream hidden delete)
- Guard all delete/archive actions with ConfirmationActivity (10 call sites)
- Add inputArmed gating to ConfirmationActivity to prevent accidental confirmation
- Safe deserialization: readString now returns bool with MAX_STRING_LENGTH guard
- Add series field to RecentBooksStore with JSON and binary serialization
- Add i18n keys: STR_BOOK_INFO, STR_AUTHOR, STR_SERIES, STR_FILE_SIZE, etc.
Made-with: Cursor
PR #1311: Replace separate spaceWidth + getSpaceKernAdjust() with a
single getSpaceAdvance() that combines space glyph advance and kerning
in fixed-point before snapping to pixels, eliminating +/-1 px rounding
drift in text layout.
PR #1322: Add early exit to fillUncompressedSizes() once all target
entries are matched, avoiding unnecessary central directory traversal.
Also updates tracking docs and verifies PR #1329 (reader utils refactor)
matches upstream after merge.
Made-with: Cursor
Add detailed entries to MERGED.md for all 5 ported PRs with context,
changes applied, and differences from upstream. Update upstream-sync.md
tracking table with new entries and sync date.
Made-with: Cursor
