The bridge module docstring still described the API as 'deliberately
read-only' but it now exposes full CRUD (tasks, boards, comments,
links, SSE). Updated to list the supported operations.
For _board_counts_for_slug (the hot path for the board-switcher badge),
added a board_exists() early-out that mirrors the agent's own helper
in plugin_api.py (path.exists() before connect()). This avoids a
redundant init_db()+connect() schema pass per board per list refresh.
connect() already handles auto-init for fresh databases via its
needs_init check, so the extra init_db was unnecessary overhead on
the hot path that scales linearly with board count.
Tests:
- test_board_counts_returns_empty_for_nonexistent_board: verifies the
early-out (no connect() call, returns {})
- test_board_counts_returns_real_counts_for_populated_board: verifies
actual per-status counts are returned for existing boards
a80b7695d8