Config now uses top-level dark/light sections (each with running/completed
styles) and a theme option ("dark", "light", "auto"). The daemon resolves
the active theme at flash time via NSApp.effectiveAppearance().
Made-with: Cursor
Major changes:
- Add StyleConfig dataclass with independent color, width, opacity,
duration, pulse_speed, sound, and volume per mode (running/completed)
- Replace flat flash_*/sound_*/play_on config with running: and
completed: YAML sections
- Replace CGEventTap (silently fails in forked daemon) with
CGEventSourceSecondsSinceLastEventType polling for reliable
input-based pulse dismissal when Cursor is already frontmost
- Update overlay, sound, and daemon to pass StyleConfig per call
- Rewrite tests for new config shape and dismiss mechanism
Made-with: Cursor
