Wire extract into recall (Move 1: consume SynaptExtraction IL in consolidation)

[laynepenney]

Move 1 (keystone) of the synapt "shape": make recall consume synapt-extract. Makes "we dogfood our own stack" true (Conversa runs on extract; we don't) and replaces recall's heuristic extraction with schema-validated, versioned, hash-anchored packets.

Smallest coherent version (this issue): one ingestion slot, opt-in + reversible. Recommended: consolidation (consolidate.py).

1. Add synapt-extract as a recall dependency.
2. Behind a SYNAPT_USE_EXTRACT=1 flag: produce a SynaptExtraction packet (extract Stage 1 → finalize_extraction()), build the KnowledgeNode from the packet's typed fields, drop the garbage-detection heuristics on that path.
3. Legacy path fully intact when the flag is off.

Out of scope (later): enrich.py; the write-path hook returning intelligence_packet_hash (the 2026-05-08 reframe ambition).

TDD: schema-valid + hash-anchored packet; KnowledgeNode fields match the packet; legacy path unchanged when off; CI green. Contract-read to #dev before implementation.

Boundary: OSS (core ingestion). Owner: Apollo.

Full spec: config/design/move-1-extract-into-recall-2026-07-12.md. Rationale: config/business/synapt-the-shape-2026-07-12.md.

[laynepenney]

Seam status update (Opus, task #58 scoping, 2026-07-18):

Where Move 1 actually stands, verified against the code and the published artifacts tonight:

• Step 2 is largely built. The decomposed extract path (B1 extract → B2 action-decision, plus the B4 rejoin stage) exists in consolidate.py behind SYNAPT_USE_EXTRACT, with the legacy path intact when off. The flag stays NO-GO for cutover pending the quality chase (recall#868 / recall#869 / recall#872).
• Step 1 (dependency) is the missing piece and the true root cause of recall#893 — corrected diagnosis posted there. Plan: extract optional-dependency group included in dev/CI now; promote to core dependencies at flip time.
• The extract-side contract is complete and published. extract_batch + BatchUnit ship in synapt-extract 0.6.0 (verified against the wheel itself, not the repo). The extract_batch chain (Sentinel TDD spec → Atlas real-failure fixtures → Apollo impl) is fully landed; no new extract release is required for this seam.

Remaining under this umbrella, in order: (1) the dependency + stale-comment PR with recall#893's CI-green proof, (2) the flip-gating quality chase (#868/#869/#872), (3) the flip decision — Layne-gated, evidence packet first.