Sync repo to deployed state: SEO recovery, Publishing Desk, Play games, emoji picker

The deploy pipeline runs from the working tree, so a wave of shipped features
had never been committed. This snapshots git to what's actually running.

SEO impression recovery (live + verified):
- Duplicate /a/{id} now 301-redirect to their canonical twin instead of 404
  (a hard 404 silently dropped already-indexed URLs and tanked impressions).
- Dedup representative selection reworked: accepted/serveable -> established
  rep (URL stability) -> quality score, so an accepted page never retires to a
  rejected rep and an indexed canonical doesn't churn when a newer twin arrives.
- HEAD /a/{id} returns the same status as GET (api_route GET+HEAD) instead of
  falling through to the static mount and 404ing.
- `dedup --force-recluster`: cycle-locked, model-free re-cluster to re-apply the
  policy to the existing corpus (shared cycle_lock context manager).
- CLI honors GOODNEWS_DB for its default --db (was silently ignored).

Publishing Desk (admin tool to post highlights to X via Web Intents):
- publishing.py queue/rank/handle-resolution; admin UI; full searchable emoji
  picker (bundled data, no CDN) for the blurb editor.

Play games + site:
- Bloom (word-wheel), Memory Match, daily ritual set, Zen Den (dev-gated).
- English-only language gate; source prospecting; paywall + dedup hardening.

Tests: full suite green (349). Ignores tightened (node_modules, data/*.db).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

goodnews/static/index.html

@@ -419,7 +419,9 @@
         box.append(d);
       };
       stat("Mode:", p.classified ? "model (accurate)" : "heuristic (quick, conservative)");
-      stat("Acceptance:", `${Math.round(p.acceptance_rate * 100)}% (${p.accepted}/${p.sampled})`);
+      stat("Acceptance:", p.acceptance_rate == null
+        ? `— (all held · ${p.accepted}/${p.sampled})`
+        : `${Math.round(p.acceptance_rate * 100)}% (${p.accepted}/${p.sampled})`);
       stat("Freshness:", `${p.recent_7d}/${p.sampled} in last 7 days · newest ${(p.newest_published||"unknown").slice(0,10)}`);
       stat("Calm averages:", `cortisol ${p.avg_cortisol} · ragebait ${p.avg_ragebait} · PR ${p.avg_pr_risk}`);
       const mix = (m) => Object.entries(m).map(([k, v]) => `${k} ${v}`).join(" · ") || "—";