Added EPUB/PDF/TXT/FB2 filters with folder-aware filtering.
Added one global filter for Search, Bookmarks, Reading, and Collection.
Added lightweight FB2 support for .fb2, .fb2.zip, and .fbz files.
Improved Bookmarks and Reading sections with cleaner dropdown behavior.
Improved home layout with cleaner Search, Manage folders, Collection, and current-folder sections.
Improved PDF rendering for existing annotations/callouts/highlights on supported Android versions.
Added PDF internal/external hyperlink handling with an Open link? prompt for external links.
Improved EPUB external link handling while preserving internal EPUB navigation.
Stabilized EPUB rendering, title/TOC behavior, image/resource loading, and external links.
Fixed note timestamp crashes, dark-theme cursor visibility, long-note stability, autosave behavior, popup dismissal, and added a Discard? safety prompt.
Kept Areada offline-first with no internet permission.