95c26f04f8
New: - /vectors/playbook_memory/patterns: meta-index pattern discovery. Given a query, finds top-K similar playbooks, pulls each endorsed worker's full workers_500k profile, aggregates shared traits (cert frequencies, skill frequencies, modal archetype, reliability distribution), returns a human-readable discovered_pattern. Surfaces signals operators didn't explicitly query — the original PRD's "identify things we didn't know" dimension. - /vectors/playbook_memory/mark_failed: records worker failures per (city, state, name). compute_boost_for applies 0.5^n penalty per recorded failure, so 3 failures quarter a worker's positive boost and 5 effectively zero it. Path 1 negative signal — recruiter trust depends on the system NOT recommending people who no-showed. - Bun /log_failure: validates failed_names against workers_500k (same ghost-guard as /log), forwards to /mark_failed. Improved: - /log now validates endorsed_names against workers_500k for the contract's city+state before seeding. Ghost names (names that don't correspond to real workers) are rejected in the response and excluded from the seed, preventing silent boost failures. - Bun /search auto-appends `CAST(availability AS DOUBLE) > 0.5` to sql_filter when the caller didn't constrain availability. Opt out with `include_unavailable: true`. Recruiter trust bug: surfacing already-placed workers breaks the first call. - DEFAULT_TOP_K_PLAYBOOKS 25 → 100. Direct cosine measurement showed similarities cluster 0.55-0.67 across all playbooks regardless of geo, so k=25 missed relevant geo-matched playbooks. Brute-force is still sub-ms at this size. Verified end-to-end on live data: - Ghost names rejected on /log + /log_failure - Availability filter drops unavailable workers from candidate pool - Pattern discovery on unseen Cleveland OH Welder query returned recurring skills (first aid 43%, grinder 43%, blueprint 43%) and modal archetype (specialist) across 20 semantically similar past playbooks in 0.24s - Negative signal: Helen Sanchez boost dropped +0.250 → +0.163 after 3 failures recorded via /log_failure (34% reduction)