[NOTICKET] chore: track stray readiness result (17/17), clean the working tree

[NOTICKET] fix: F-5 — isolate DB threads; stop treating session hardening as best-effort

[NOTICKET] fix: floor_08 — the report floor must not clear on a failed analysis step

[NOTICKET] fix: review cheap batch — F-19 SSE order, F-22/F-24 analysis_id, F-26, F-16, F-4

[NOTICKET] feat: bound catalog render + blob read; scope charts/traceability; mark degraded seams

[NOTICKET] eval: repair readiness harness; commit intent/help/readiness baselines

/fix check and help tool (#8)

feat/Knowledge & Data Tools (#3)