docs(P04 W2): pilot-run docs (REQ-321) — adapters/README, METRICS, ARCHITECTURE §12.8, consumer onboarding

- adapters/README.md: fixed stale TYPE_MAP/INPUT_MAP refs (the adapter is a
  stateless assembler); added the blockchain-exchange consumer row + the
  Gitea adapter note (SPEC §10 Q1 — no cross-repo uses:)
- docs/METRICS.md: Post-Pilot denominators activated (AI Decision Accuracy +
  Human Escalation Frequency + the third metric now have non-zero data from
  the blkex-pilot-apply-v0.2 run)
- .ciagent/ARCHITECTURE.md §12.8: Pilot Estate (v1.26 live) — the first real
  consumer estate, the live apply, the Gitea adapter, the evidence stream
- .ciagent/nova-blockchain-exchange/README.md: consumer onboarding guide
  (deploy invocation, secrets, contract shape, verification)

---ci---
project: acdl
phase: 4
milestone: v1.26
status: execute
wave: W2
---

docs/METRICS.md

@@ -19,7 +19,7 @@ numbers. Every metric either has a real source or is explicitly deferred.
 
 ### Touchless Resolution Rate
 - **Target:** ≥ 99% across production estates (Post-Pilot)
-- **Status:** partial (pipeline grounded; denominator = 0 today)
+- **Status:** partial (pipeline grounded; denominator = 1 run post-pilot)
 - **Formula:** runs completing without *operational* HITL block ÷ total runs
   (attestation gates excluded — they're designed controls, not escalations)
 - **Source:** `metrics/nova_metrics.db` `fact_run` (hitl_block column)
@@ -27,20 +27,54 @@ numbers. Every metric either has a real source or is explicitly deferred.
 
 ### Human Escalation Frequency
 - **Target:** < 0.1% of platform actions (Post-Pilot)
-- **Status:** partial (pipeline grounded; denominator = 0 today)
+- **Status:** partial (pipeline grounded; denominator = 1 run post-pilot, 0 escalations)
 - **Formula:** operational HITL blocks ÷ total runs (attestation sign-offs
   excluded)
 - **Source:** `metrics/nova_metrics.db` `fact_run` (hitl_block column)
+- **Grounding:** `escalation_reason` field (REQ-318) — absent on a clean
+  dev apply (no block). The denominator counts runs; the numerator counts
+  runs where `escalation_reason` is present.
 - **Definition-of-success:** `docs/metrics/human_escalation_frequency.md`
 
 ### AI Decision Accuracy
 - **Target:** ≥ 99.5% (no rollback, no follow-up incident within 5 min)
-- **Status:** partial (pipeline grounded; denominator = 0 today)
+- **Status:** partial (pipeline grounded; denominator = 1 decision post-pilot)
 - **Formula:** decisions not followed by apply.failed/incident within 5min
   ÷ total decisions
 - **Source:** `metrics/nova_metrics.db` `fact_decision` (outcome column)
+- **Grounding:** `fact_decision.outcome` is now `succeeded` (not
+  `pending`) — the outcome backfill (REQ-317) grounded this. A decision
+  whose outcome is still `pending` is excluded from the numerator AND the
+  denominator (it is not yet a completed decision).
 - **Definition-of-success:** `docs/metrics/ai_decision_accuracy.md`
 
+#### Post-Pilot Activation (v1.26 P4)
+
+The three Post-Pilot targets above were previously documented as
+"denominator = 0 today" — no real consumer estate had run through the
+platform end-to-end. The v1.26 P4 pilot run changed that: the first
+real consumer estate (`nova-blockchain-exchange`, account
+`581513795199`, dev environment, autonomous) contributed the first real
+data points.
+
+- **Run id:** `blkex-pilot-apply-v0.2` (2026-08-19)
+- **AI Decision Accuracy:** 1 decision (`blkex-pilot-apply-v0.2`),
+  outcome `pending → succeeded` (REQ-317 backfill). Numerator = 1
+  (no apply.failed, no incident), denominator = 1. Future runs
+  accumulate into this denominator.
+- **Human Escalation Frequency:** 1 run, `escalation_reason` absent
+  (clean dev apply — REQ-318). Numerator = 0 escalations, denominator
+  = 1.
+- **Touchless Resolution Rate:** 1 run, no operational HITL block (dev
+  is the only autonomous environment — no attestation gate).
+  Numerator = 1, denominator = 1.
+
+The denominators are now non-zero. Each is still `n = 1`, so the rates
+are not yet statistically meaningful — they are documented as real data
+points, not fabricated targets. See `.ciagent/P4-PILOT-RUN-EVIDENCE.md`
+for the full evidence stream (confidence 0.800 pass, Decision Ledger
+hash chain valid).
+
 ### MTTD / MTTR (platform-run)
 - **Target:** < 60 seconds (p95)
 - **Status:** grounded (platform-run MTTR)