Levi Woodard 6d0748e4c5 Add camera module: drive UVC webcam controls via cameractrls ...

New `camera` module in modules.example.yaml (and the embedded copy) with
four functions: `set` (any control=value list, incl. preset/colour buttons),
`toggle` (flip between two values), `adjust` (step a numeric control by a
delta, clamped to the min/max parsed from `cameractrls -l`, with optional
`extra` controls applied first), and `is` (poll helper, exit 0 on match).

Device comes from CAMERA_DEVICE in .env (default /dev/video0) or a per-key
`device` param. cameractrls exits 0 for unknown controls, so polls must
use `is`; stderr is discarded to drop Python deprecation warnings.

README: Camera module section with setup, function table, a folder
example, and the oksvg viewBox-offset centring gotcha for SVG icons.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017iodiNMYL9iuT7f6WCe5iv

2026-10-08 14:02:29 -06:00

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