fix: restart the stalled autonomy pipeline and make calibration honest

Archive ingestion had been dead since 2026-08-02 because nothing in the
compose stack actually ran it. Everything downstream starved from there.

- add ingest + enrichment services. server.js only starts the scheduler when
  DURIIN_RUN_SCHEDULER is not "false", and workers/index.js was not running at
  all, so articles never got event_id/content/has_embedding and the coordinator
  had nothing to lease.
- pass an explicit origin from coordinatorWorker. it was never passed, so
  acceptProposal defaulted to 'live' and 464 historical backfill predictions
  were recorded as live. that also meant verifyEvidence got a null cutoff and
  skipped its date check entirely.
- coarsen cohortKey to event families + horizon buckets. 201 free text event
  types produced 221 cohorts averaging 2.76 samples, so the n>=30 gate could
  never be reached and everything abstained for the wrong reason.
- gate on cohort diversity, not just sample count. one ticker was roughly half
  of all resolved outcomes, so a pure count gate was measuring one company.
  unknown diversity abstains rather than passing.
- resolve the admin archive db explicitly and probe it. it relied on a
  Dockerfile symlink, and without it better-sqlite3 quietly creates an empty
  file and serves a phantom archive.
- clamp implausible future publication dates at ingest.
- pin the db backend to sqlite by default. compose hardcoded postgres "true",
  which would have overridden the operator's own .env on the next redeploy and
  pointed everything at a stale snapshot.

scripts/repair-autonomy-labels.js relabels the affected rows. it is dry run by
default and has not been applied.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WnNxwxfXSbeNtjvtz5gayb

public/admin/pages/autonomy.html

@@ -8,7 +8,7 @@
 <link rel="stylesheet" href="/admin/assets/css/base.css?v=20260804-3">
 <link rel="stylesheet" href="/admin/assets/css/layout.css?v=20260804-3">
 <link rel="stylesheet" href="/admin/assets/css/components.css?v=20260804-3">
-<link rel="stylesheet" href="/admin/assets/css/autonomy.css?v=20260804-3">
+<link rel="stylesheet" href="/admin/assets/css/autonomy.css?v=20260829-1">
 </head>
 <body class="page-autonomy">
 
@@ -98,6 +98,8 @@
         <div><span>Calibration cohorts</span><strong id="perf-cohorts">0</strong></div>
       </div>
       <p class="performance-note" id="performance-note">Duriin will only claim an edge after predictions mature and are measured out of sample.</p>
+      <div class="performance-facts" id="origin-split"></div>
+      <p class="performance-note" id="origin-note">Historical backfill and walk-forward replay are shown separately. Neither is evidence of live edge.</p>
     </aside>
   </div>
 
@@ -138,10 +140,20 @@
       <div><span>Watermark</span><strong id="replay-watermark">—</strong></div>
     </div>
   </section>
+
+  <section class="panel" aria-label="Calibration cohorts">
+    <div class="section-head"><div><span class="section-index">07</span><h3>Calibration cohorts</h3></div><span class="mode-pill">Needs 30 samples · 5 tickers · max 50% in one</span></div>
+    <div class="table-wrap">
+      <table>
+        <thead><tr><th>Cohort</th><th>Source</th><th>Samples</th><th>Distinct tickers</th><th>Top ticker share</th><th>Status</th></tr></thead>
+        <tbody id="cohort-list"><tr><td colspan="6" class="empty-state">No calibration snapshots yet.</td></tr></tbody>
+      </table>
+    </div>
+  </section>
 </main>
 
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 <script src="/admin/assets/js/app.js?v=20260804-3"></script>
-<script src="/admin/assets/js/autonomy.js?v=20260804-3"></script>
+<script src="/admin/assets/js/autonomy.js?v=20260829-1"></script>
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