chore(sync): mirror backend .py + Dockerfile to Space (hf-sync-backend)

Automated backend sync from szl-holdings/a11oy main via hf-sync-backend.
Updated (differed from the Space): serve.py
Deleted (gone from the repo + Dockerfile COPY set): (none)

Keeps the Space-built backend (serve.py + the Dockerfile-COPY'd .py
modules) identical to GitHub main so the Space never rebuilds from a
stale backend, new endpoints don't 404 there, and orphaned modules
removed from the repo don't linger in the Space tree.

serve.py

@@ -6902,8 +6902,9 @@ _A11OY_ARENA = {
     "run_id": "arena-1776831038439",
     "timestamp": "2026-04-22T04:10:38.439Z",
     "scenarios_total": 5, "scenarios_passed": 5, "scenarios_failed": 0,
-    "honesty": ("Recorded run from the SZL eval harness (eval-runner), 2026-04-22 — "
-                "deterministic, content-hashed. Live re-runs are roadmap."),
+    "honesty": ("Recorded baseline run from the SZL eval harness (eval-runner), 2026-04-22 — "
+                "deterministic, content-hashed. Click \u201cRe-run live\u201d to re-execute "
+                "a11oy\u2019s own governance primitives in-image now."),
     "dimensions": ["correctness", "evidence_completeness", "approval_compliance",
                    "replay_completeness", "policy_adherence", "hallucination_resistance",
                    "tool_efficiency"],