Summary

• Bind foliate TTS initialization to the renderer primary content instead of the first preloaded content.
• Limit desktop and mobile scroll-mode visible TTS extraction to the primary rendered section to avoid reading preloaded chapters.
• Update mobile paginated visible-range detection to score current renderer range candidates, matching the desktop fallback logic after the foliate update.
• Regenerate the mobile reader.html bundle from reader.template.html.

Fixes #377.

Validation

• pnpm --filter app-expo run build:reader
• pnpm --filter app exec tsc --noEmit --pretty false
• pnpm --filter core test -- src/tts/playback-cursor.test.ts src/tts/text-utils.test.ts src/tts/edge-tts-metadata.test.ts
• git diff --check

Notes

• Full app-expo lint still fails on existing generated ios/Pods podspec formatting noise.
• Full repo biome check still reports existing unrelated diagnostics in pdf.worker, chat components, command palette, and foliate-js.