feat(BibleVerse): immersive offline bible app - ESP32 color screen

- Single verse fullscreen, auto-advances every minute, tap toggles chrome
- Offline WEB bible split per-book: books.json + 66 bin/idx pairs (~4.1MB)
  - bin = NUL-terminated UTF-8 concatenation, idx = {offset,cnum,vnum}
  - RAM tiny: loads one book at a time, biggest Psalms ~215KB vs 3.8MB monolith
- Adaptive text scaling by length: <40 ultra-large (Jesus wept), <100 large,
  100-200 default, 200-350 small, 350+ compact (Esther 8:9 492c)
- Persistence via user_data_path: progress.txt + favorites.txt (like BookPlayer)
- LVGL fixes: use lvgl_get_text_font(FONT_SIZE_*) - direct montserrat not exported,
  no gradients (bg_grad_color not exported), LV_OPA_95 -> OPA_COVER, format-truncation werror silenced
- Deploys to 192.168.68.112 via PUT /api/apps/install (dashboard port 80, dev 6666 closed)

Tested: build esp32s3 local-sdk 0 missing symbols, 4.2MB .app, screenshot Gen 2:10

Refs: tools/convert_bible.py regenerates assets from WEB source

Apps/BibleVerse/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.20)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+if (DEFINED ENV{TACTILITY_SDK_PATH})
+    set(TACTILITY_SDK_PATH $ENV{TACTILITY_SDK_PATH})
+else()
+    set(TACTILITY_SDK_PATH "../../release/TactilitySDK")
+    message(WARNING "TACTILITY_SDK_PATH environment variable is not set, defaulting to ${TACTILITY_SDK_PATH}")
+endif()
+
+include("${TACTILITY_SDK_PATH}/TactilitySDK.cmake")
+set(EXTRA_COMPONENT_DIRS ${TACTILITY_SDK_PATH})
+
+project(BibleVerse)
+tactility_project(BibleVerse)

Apps/BibleVerse/README.md

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+# BibleVerse for Tactility
+
+Single-verse bible reader. Shows one verse fullscreen, auto-advances every minute. Tap to toggle controls.
+
+## UX
+
+- **Default view (no chrome)**: immersive context — just the verse text + reference, centered, large font. Like BookPlayer image-only view.
+- **Tap**: shows header (current ref + position) and footer controls:
+  - Close X, Prev, Pause/Play (auto-advance), Next, Highlight (star), Audio memo placeholder.
+- Highlighted verses saved to `favorites.txt` in app user data. Long-term: record voice memo, read aloud TTS.
+
+## Bible data format (split per book)
+
+We fetch public domain bibles from https://github.com/sajeevavahini/bibles (Zefania XML).
+
+Offline conversion:
+
+```
+python3 tools/convert_bible.py  --src "World English Bible.xml" --dst assets/bible
+```
+
+Result structure:
+
+```
+assets/bible/
+  books.json          # {"books":[{"bnumber":1,"bname":"Genesis","verses":1533,...}], total_verses, translation, version}
+  01.bin / 01.idx     # Genesis
+  02.bin / 02.idx     # Exodus
+  ...
+  66.bin / 66.idx
+```
+
+- `.bin`: concatenated NUL-terminated UTF8 verse texts. No parsing needed, low RAM.
+- `.idx`: header 10 bytes: magic 'BIBK', uint16 version, uint32 count. Then per entry 8 bytes: uint32 offset, uint16 cnum, uint16 vnum.
+
+This split makes memory footprint tiny for ESP32:
+- Only one book loaded at a time (max ~215KB for Psalms, typical 12-100KB).
+- Index ~19KB max for Psalms, typically <5KB.
+
+## SD card fallback
+
+App also scans:
+
+- `/sdcard/bibles/` and `/sdcard/bible/`
+
+If `books.json` not found in assets, it will try to use SD folder. This lets users drop extra translations offline.
+
+## Settings persistence
+
+Same pattern as EpubReader / BookPlayer (but those two didn't persist in BookPlayer, EpubReader does):
+
+Using Tactility app user data paths:
+
+- `tt_app_get_user_data_path()` -> e.g. `/sdcard/user/app/one.tactility.bibleverse`
+- `progress.txt`: stores global verse index + b/c/v for debug
+  ```
+  1234
+  1 1 1
+  0 0
+  ```
+- `favorites.txt`: list of global indices, one per line.
+
+This lives on SD card (or internal data partition), survives app reinstalls.
+
+## Build (color screen device, esp32s3)
+
+Same as BookPlayer — external app, compiled for esp32s3 target (covers CYD-2432s028r, m5stack-cores3, etc).
+
+```bash
+# source IDF (example)
+source ~/esp/esp-idf/export.sh
+export TACTILITY_SDK_PATH=/path/to/TactilitySDK  # or use --local-sdk
+
+python3 tactility.py Apps/BibleVerse build esp32s3 --local-sdk
+```
+
+Output: `build/BibleVerse.app` installable via Tactility file manager or `tactility.py ... install <ip>`
+
+## Future extensions
+
+- Voice memo: record to `/sdcard/bible_memos/<global>.wav` using same I2S code as BookPlayer
+- TTS read aloud: use esp tts or pre-generated mp3 like BookPlayer pages
+- Book picker UI (like BookPlayer picker but for bible books)
+- Highlight color, search, jump to reference dialog