Ryan Malloy
7035d814a1
Camera backend abstraction wrapping fswebcam/ffmpeg/libcamera-still via subprocess, with DemoCamera fallback generating valid JPEG from raw bytes. Capture pipeline writes JPEG + JSON sidecar always, optional FITS (astropy) and EXIF (Pillow) when available. Thread-safe orchestrator with session tracking, sequence numbering, and date-based output directories. Trigger system: manual capture, configurable interval timer, and pass event detection (AOS/TCA/LOS) with 0.5-degree TCA hysteresis. PassEventDetector runs in the Craft tracking loop, fires callbacks to the camera overlay. F6 overlay follows the F5 ConsoleOverlay pattern — ModalScreen with install_screen persistence. Status panel, scrollable capture log, interval controls, and AOS/TCA/LOS toggle buttons. Tagline: "a generic AZ/EL positioner that doesn't care about wavelength" added to TUI header subtitle. 51 new tests (77 total passing).