Initial sync: memory, agents, commands, and gitignore

Syncs project memory, custom agents, and commands across machines.
Excludes secrets (settings.json), session state, and runtime files.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

projects/-Users-csader-Downloads-SplitFlapDisplay-main/memory/MEMORY.md

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+- [MQTT HA Integration Plan](project_mqtt_ha_plan.md) — Plan to add MQTT discovery integration with Home Assistant; broker is Mosquitto on HA
+- [Teach Mode + Photo-Tune Plan](project_calibration_plan.md) — Teach mode wizard UI + Claude Code photo-assisted calibration skill
+- [Feature Branches Status](project_branches.md) — All feature branches on fork with implementation status and PR info
+- [Flask Dev Port](feedback_port.md) — Run Flask dev server on port 8080, not default 80