feat(dispatch): wire hypatia closed-loop contract (closes C15 estate blocker)

[hyperpolymath]

Summary

Closes the estate-onboarding blocker C15 from the 2026-06-03 audit: hypatia documents the dispatch-runner contract at hypatia/docs/operations/dispatch-runner-contract.adoc, but the gitbot-fleet side that "pushes committed fixes to remotes" + reports outcomes was unwired. Without it, hypatia's Bayesian confidence updating, auto-quarantine, and re-scan verification all sit at :insufficient_data forever — and the closed-loop verification metric from PR #309 never engages.

What this wires

• New hypatia_record_outcome helper in scripts/dispatch-runner.sh calls mix hypatia.record_outcome --recipe --repo --file --outcome per the contract.
• Exit-code handling matches the contract: 0 → continue, 2 → ::warning:: with optional rollback hint, anything else → ::error:: but never break the dispatch loop.
• Three env-var knobs:

Env var	Default	Purpose
HYPATIA_HOME	$REPOS_BASE/hypatia	path to the hypatia checkout
HYPATIA_OUTCOME_REPORT	on	set off to skip mix calls (e.g. CI without Elixir)
HYPATIA_BATCH_ID	(unset)	when set, exit-2 surfaces a mix hypatia.rollback_batch hint

• Best-effort: missing hypatia checkout, missing mix, empty recipe_id all short-circuit to a silent no-op or one-line warning. The dispatch loop never fails because of the closed-loop call.
• Existing JSONL outcome write is preserved (backwards-compat for consumers that read directly from outcomes/YYYY-MM.jsonl).

Outcome vocabulary mapping (shell → contract)

Shell outcome	Hypatia outcome
success	success
failure	failure
refused_license_*	false_positive — surfaces misfiring recipes to auto-quarantine, directly useful for the post-neurophone#99 licence-policy gate already in this script
anything else	skipped — no poisoning of recipe-health

Test plan

• bash -n scripts/dispatch-runner.sh clean.
• tests/hypatia-record-outcome-smoke.sh exercises the three short-circuit paths (opt-out / missing $HYPATIA_HOME / empty recipe_id) — 5/5 pass.
• End-to-end paths (exit 0/2/1 from mix) require a running hypatia install and are covered by hypatia's own integration tests.

Estate context

This PR is #3 of 5 in the C12/C14/C15/B7/D18 critical-blocker pass coming out of the echidna estate-scale audit.

• C12 PR (echidnabot manifest): feat(modes/manifest): per-repo A2ML manifest schema v2.0 (closes C12 estate blocker) echidnabot#84
• C14 PR (cross-repo proof DAG design): docs(architecture): cross-repo proof DAG design (closes C14 estate blocker) echidna#217
• B7 + D18 PRs: queued

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