Harden reader validation, isolation, and request lifecycle

Refactor Foliate reader lifecycle

Unify Reader asset version

Sync Foliate progress state

Rebind Foliate controls after layout changes

Restore Foliate controls after layout changes

Move Foliate layout control into menu

Fix Foliate iframe URLs and search

Use one embedded Foliate reader chrome

Sync Foliate navigation and bookmark state

Support scrolling through short Foliate sections

Open Foliate at the first book section

Load Foliate books through reader proxy

Fix continuous Foliate chapter scrolling

Auto-scroll across Foliate sections

Use Foliate native continuous reader

Load EPUB through same-origin blob

Prevent EPUB navigation hang

Handle EPUBs without navigation landmarks

Fix EPUB reader viewport and load reporting

Start EPUB at readable text

Use standalone official foliate reader