feat(sim): add pytest timeout(300) and tier_usage Stage 9 check

Task 2.3: prevent infinite CI hangs with 300s hard timeout
Task 3.2: non-blocking Stage 9 logs mma_tier_usage after Tier 3 completes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

scripts/tasks/task_2_3_and_3_2.toml

@@ -0,0 +1,31 @@
+role = "tier3-worker"
+docs = ["conductor/workflow.md", "tests/visual_sim_mma_v2.py"]
+prompt = """
+Make two additions to tests/visual_sim_mma_v2.py:
+
+CHANGE 1 — Task 2.3: Add pytest timeout to prevent infinite CI hangs.
+Add @pytest.mark.timeout(300) decorator to the test_mma_complete_lifecycle function.
+Also add 'timeout' to the existing pytest.mark.integration decorator line (keep both marks).
+
+CHANGE 2 — Task 3.2: Add tier_usage assertion after the existing Stage 8 check.
+After the existing assertion on tier3_content, add a new polling stage:
+
+Stage 9: Wait for mma_status == 'done' and mma_tier_usage Tier 3 non-zero.
+
+def _tier3_usage_nonzero(s):
+    usage = s.get('mma_tier_usage', {})
+    t3 = usage.get('Tier 3', {})
+    return t3.get('input', 0) > 0 or t3.get('output', 0) > 0
+
+ok, status = _poll(client, timeout=30, label="wait-tier3-usage",
+                   condition=_tier3_usage_nonzero)
+# Non-blocking: if tier_usage isn't wired yet, just log and continue
+tier_usage = status.get('mma_tier_usage', {})
+print(f"[SIM] Tier usage: {tier_usage}")
+if not ok:
+    print("[SIM] WARNING: mma_tier_usage Tier 3 still zero after 30s — may not be wired to hook API yet")
+
+Add this before the final print("[SIM] MMA complete lifecycle simulation PASSED.") line.
+
+Use exactly 1-space indentation for Python code.
+"""