Cleanup: remove BLE scanner, rename 10-OBD-Display-2024 to 10-GIF-Tests

- 11-BLE-Scanner removed; its car-test log moved to 12-OBD-Speed/docs
- 10-OBD-Display-2024 -> 10-GIF-Tests (GIF playback experiments)
- the broken LVGL 9 archive was already deleted (unintentionally) in d6982ab
- READMEs and CLAUDE.md references updated; visual check of 80 MHz QSPI /
  RGB565_SWAPPED marked as confirmed

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CLAUDE.md

@@ -79,9 +79,8 @@ Display color format is `RGB565_SWAPPED` (ST77916 byte order, set in `lv_conf.h`
 | `1-Instructions` | Spec PDF (duplicate), AIDA64 remote-sensor layout `aida_remote_1.85.rslcd`, MJPEG conversion tool (Windows .NET, converts video to 360×360 MJPEG 25 fps) |
 | `2-Program Example/Demo_Arduino` | **Vendor only:** `library/` (3 libs), `lv_conf.h` (vendor original), `sd/` (SD listing example; its lv_conf.h has FATFS edits), `docs/` (setup screenshots + compile instructions). The vendor's original LVGL demo sketch no longer exists unmodified. |
 | `shared` | **Shared code for all JC3636W518 projects:** `jc3636w518.ini` (PlatformIO base config), `include/lv_conf.h` (LVGL 9.6), `lib/JC3636W518` (board library). See its `README.md` |
-| `12-OBD-Speed` | **The new program (in progress):** speed from the ELM327 over BLE as big number + arc gauge on a GIF background; swipe left for the adapter menu (scan, select → remembered in NVS, auto-reconnect every 3 s). See its `README.md` |
-| `11-BLE-Scanner` | **BLE scanner with on-screen UI** (NimBLE-Arduino 2.5.1): live device list, tap to list services/characteristics, ELM327 test (ATZ/ATE0/ATI/ATRV/0100). Results saved to LittleFS `/ble_log.txt`; serial `d` dump, `c` clear, `s` device list. See its `README.md` |
-| `10-OBD-Display-2024` | **Leftovers of the 2024 OBD project:** `display_gif_embedded`, `display_gif_sd`, `assets/gifs`, `_archive/lvgl9_broken` (bridge/ELMulator/WiFi speed sketch removed 2026-10-23) |
+| `12-OBD-Speed` | **The new program — working in the car (2026-10-23):** speed from the ELM327 over BLE as big number + arc gauge on a GIF background; swipe left for the adapter menu (scan, select → remembered in NVS, auto-reconnect every 3 s). See its `README.md` |
+| `10-GIF-Tests` | **GIF playback experiments** (was `10-OBD-Display-2024`): `display_gif_embedded`, `display_gif_sd`, `assets/gifs`. The 2024 bridge/ELMulator/WiFi speed sketch, the broken LVGL 9 archive and the BLE scanner tool (`11-BLE-Scanner`: on-screen scan, GATT listing, ELM test, LittleFS log) were removed 2026-10-23 — all in git history |
 | `3-Specification` | Spec sheet (factory firmware features, interface photo) |
 | `4-Chip manual` | ESP32-S3R8 datasheet, PCM5100A datasheet |
 | `5-Dimension` | Mechanical drawings (JPG + DWG) |
@@ -96,7 +95,7 @@ Re-flash it with Flash Download Tool: ESP32-S3, `1.85_demo.bin` @ 0x0.
 
 ## OBD adapter (user's)
 AliExpress "ELM327 Mini V2.1 Bluetooth OBD **Dual Mode** 5.1" — dual mode = Bluetooth Classic SPP **and BLE**, so the ESP32-S3 should be able to connect directly over BLE (no bridge ESP32).
-**Verified in the car (2026-10-23, `11-BLE-Scanner`, log in `11-BLE-Scanner/results/2026-10-23_car_test.txt`):**
+**Verified in the car (2026-10-23, with the since-removed BLE scanner tool; log in `12-OBD-Speed/docs/2026-10-23_ble_scanner_car_test.txt`):**
 - BLE name **`OBDII`**, MAC `1c:a1:35:69:8d:c5`, advertises service **`0xFFF0`**. Characteristics: **`FFF1` [W, WnR, Notify]**, **`FFF2` [W, WnR]**.
   Working setup: subscribe to notifications on `FFF1`, write commands (`"...␍"`) to `FFF1` (write without response) — `FFF2` is the usual write characteristic on such clones and should work too.
 - Replies: `ATZ` → `ELM327 v2.1` (echo on by default → send `ATE0`), `ATRV` → `12.9V`, `0100` → `41 00 BE 3E A8 13`.
@@ -114,8 +113,8 @@ AliExpress "ELM327 Mini V2.1 Bluetooth OBD **Dual Mode** 5.1" — dual mode = Bl
 - **LVGL 9.6.0 port** (`display_gif_embedded`, 2026-10-23): **23.4 fps** (= the GIF's own 23.7 fps; decode ~12 ms, refresh ~24 ms) vs 20.6 fps tuned LVGL 8.3. LVGL 9.6 replaced gifdec with bitbank2 AnimatedGIF (2× faster decode, correct transparency — no local patch needed).
   Port notes: `lib_deps = lvgl/lvgl@9.6.0` (takes priority over the vendor lvgl 8 in `lib_extra_dirs`); `lv_conf.h` generated from the 9.6 template (CLIB malloc, refresh 15 ms, GIF on, examples off); in 9.6 public headers live in `include/lvgl/` and `LV_COLOR_DEPTH` is deprecated → `LV_COLOR_FORMAT_DEFAULT` (RGB565); no LV_COLOR_16_SWAP → `lv_draw_rgb565_swap()` in the flush cb; no LV_TICK_CUSTOM → `lv_tick_set_cb(millis)`; no `monitor_cb` → display events `LV_EVENT_REFR_START/RENDER_START/REFR_READY`; images are `lv_image_dsc_t` with `LV_IMAGE_HEADER_MAGIC`. `lv_gif_set_color_format()` switches the GIF buffer format (used, see below).
 - **LVGL 9 tuning** (display_gif_embedded, CPU at full 23.8 fps): start 86 % → GIF in display color format 66 % → render `RGB565_SWAPPED` (no swap pass) 60 % → QSPI 80 MHz 55 % → IRAM for hot LVGL code 53 %. No effect: `LV_GIF_CACHE_DECODE_DATA` (not used anywhere in 9.6), 120-row buffers. AnimatedGIF "turbo" mode can't be used: it only outputs in COOKED draw mode, LVGL uses RAW.
-- **All JC3636W518 LVGL projects now use LVGL 9.6.0 + the shared library** (display_gif_embedded, display_gif_sd, 11-BLE-Scanner, 12-OBD-Speed). SD drive `A:` = `LV_USE_FS_STDIO` on `/sdcard/`.
-- 80 MHz QSPI and RGB565_SWAPPED rendering: **visual check by the user still pending** (colors / glitches).
+- **All JC3636W518 LVGL projects now use LVGL 9.6.0 + the shared library** (10-GIF-Tests/*, 12-OBD-Speed). SD drive `A:` = `LV_USE_FS_STDIO` on `/sdcard/`.
+- 80 MHz QSPI and RGB565_SWAPPED rendering: **visually confirmed OK by the user** (colors correct, no glitches).
 - Display is round: corners of the 360×360 framebuffer are not visible — design UI within a 360 px circle.
 - Compiling a 13.9 MB GIF into the firmware will not fit "Huge APP" (3 MB); large media should live on SD (or in a custom partition).
 - `display_gif_sd` `setup()` returns early if the SD card fails to mount (black screen); `display_gif_embedded` starts its GIF first.