DanS dddf1b6ec7 feat(debug): theme x tab screenshot sweep + Debug options dialog ...

Add a debug tool that cycles every skin across every build-enabled tab and saves a
PNG of each to a timestamped folder under the config dir (screenshots/sweep_<ts>/)
— for gathering visual context on theme-specific UI work.

- App state machine (app_network.cpp): startScreenshotSweep() builds the
  skin+enabled-page lists, saves the current skin/page, and steps through them;
  updateScreenshotSweep() (top of App::render) pins the page + settles ~4 frames
  after each skin/page change (skin switches reload TOML + reset the acrylic
  capture, so they need to settle); wantsScreenshotThisFrame()/screenshotSweepPath()
  /onScreenshotCaptured() coordinate with main.cpp. Restores the original skin/page
  when done; nothing persisted.
- Framebuffer capture (main.cpp): read the finished frame and encode PNG via the
  bundled miniz (tdefl_write_image_to_png_file_in_memory_ex). GL reads FBO 0 (RGBA,
  bottom-up -> flip); DX11 copies the backbuffer to a staging texture + maps it
  (BGRA, top-down -> channel-swap). Alpha forced opaque.
- Settings UI: move the Verbose logging checkbox off the wallet row into a new
  "Debug options" button that opens a dialog housing the verbose toggle + a "Run
  screenshot sweep" button. New i18n keys.

Both platforms build; no-crash smoke verified.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-04 17:41:49 -05:00

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