Decouple Tree from client app's hotkey system by adding
getSelectedItems() to TreeHandle and having callers register
hotkeys externally. Extract shared action callbacks to eliminate
duplication between hotkey and context menu handlers.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Events from previous WebSocket/gRPC connections and HTTP responses were
persisting in the store and displaying in new connections. Added filter
parameter to mergeModelsInStore that clears old events when switching
connections, plus render-time filtering as a safety net.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Events stream in via model_write listener while also being fetched
from the database. If the DB fetch completed before all events were
persisted, replaceModelsInStore would wipe out events that came in
via model_write.
Added mergeModelsInStore that adds fetched events without removing
existing ones. Applied to HTTP, gRPC, and WebSocket event hooks.
