config: unify settings into ~/.config/cardputerzero/config.json#86
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Move the launcher config store from the flat key=value file at
/var/lib/applaunch/settings to a single per-user JSON file at
~/.config/cardputerzero/config.json, shared with other apps.
- Add a small header-only JSON reader/writer (cp0_config_json.h) that
maps dotted keys to nested JSON, so flat launcher keys stay top-level
while camera.resolution.{width,height} is a nested object the camera
app reads.
- Rewrite the cp0 and sdl config backends to load/save JSON.
- Camera Resolution in Settings now writes real width/height under
camera.resolution instead of an unused option index, fixing the bug
where the resolution setting had no effect.
No migration from the legacy file (no shipped users yet).
Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
/var/lib/applaunch/settings（扁平 key=value）整体迁到单一的用户级 JSON 文件~/.config/cardputerzero/config.json，与其它 app 共享。cp0_config_json.h：dotted key ↔ 嵌套结构，launcher 自身设置为顶层键，camera.resolution.{width,height}为嵌套对象（与 camera 开发者的读取契约一致）。cp0_lvgl_config.cpp与模拟器版sdl_lvgl_config.cpp走 JSON 读写。camera.resolution，而不是无人读取的选项索引。Camera 开发者契约
读取
~/.config/cardputerzero/config.json里的camera.resolution.width/camera.resolution.height（整数），缺失时用自身默认值兜底。示例：{ "camera": { "resolution": { "width": 640, "height": 480 } } }Test plan
Made with Cursor