app-module:
- Implement `AppStartContext` to reduce amount of `app_start_` and `app_exec` functions: replace them with `app_start_with_context()`
- Add support for environment variables when starting apps
- Implement support for environment variables for apps
graphics-module:
- Add this new module
- Move font-module code into this module
- Implement pixel_buffer
apps:
- Terminal app: reduce memory usage by only buffering a single row of characters, and try to buffer in IRAM when possible. Implement new pixel_buffer.
- App List: Mark apps as favourite to pin them on top. Use touch or press "x" key.
- App List: Add toolbar button that shows alert dialog with info about using favourites
shadow_framebuffer records what the panel is currently showing, but both
refresh paths updated it before the refresh was confirmed, so a failed
trigger or a BUSY timeout left it describing content that was never
displayed.
That misdescription compounds: the shadow is sent to the controller as
CMD_DATA_START_OLD, so the per-pixel transitions get computed from an
image the panel never held, and draw_bitmap() diffs against it, so a
region matching a wrong shadow is treated as clean and never repainted.
Both paths now commit only after wait_while_busy() confirms. refresh_full()
also sends new data straight from the render buffer, which drops a
full-framebuffer copy from the path.
- Created kernel driver for T-Deck Max & Pro display (needs work, doesn't refresh reliably on T-Deck Pro)
- Created T-Deck Pro device implementation (incubating)
