/sh-security-review confirmed SEC-DASH-001 (low): build_snapshot embedded str(exc)
of a sqlite/OS error into the /api/state payload, leaking the absolute DB path /
table names to the unauthenticated LAN surface. Return only type(exc).__name__
(matching the task_detail hardening); apply the same to /api/topology's error
branch (SEC-DASH-003). Full exception detail stays in server-side logs.
- read_transitions: catch sqlite3.Error (not just OperationalError) so a corrupt
ledger degrades to empty rather than raising into callers
- recorder open-row lookup: order by the monotonic transition_id (drop the
timestamp-format dependency)
- TransitionRecorder.close(): release the retained in-memory test connection
- dashboard task_detail: return only the exception TYPE, never str(exc) (a SQLite
message can carry the DB path)
- _instrument: coerce a status enum to .value defensively before the terminal check
- schema.migrate: document the ordering constraint for future ALTERs vs the
unconditional idempotent tail
topology.py derives the pipeline map (nodes/edges/trees) from the compiled
LangGraph via get_graph() + a NODE_META display sidecar, so new agent nodes
appear automatically and group into trees branching off intake. dashboard.py is a
new read-only FastAPI app (0.0.0.0:8770) serving /api/state (contract preserved +
per-node live state), /api/topology, and /api/task/{id} (validated, timeline +
cost join + partial fallback) plus the built SPA — kept SEPARATE from the authed
api.py. status_page.py is trimmed to the /api/state data layer; the inline
HTML/SVG renderer + stdlib server are retired.
