docs: Add session debrief about test fixes and MCP tool lesson

add_debug.py

@@ -0,0 +1,38 @@
+with open("tests/test_visual_orchestration.py", "r", encoding="utf-8", newline="") as f:
+    content = f.read()
+
+# Add debug polling
+content = content.replace(
+    """# 3. Verify that Tier 1 generates tracks
+    print("[Test] Polling for Tier 1 tracks...")
+    tracks_generated = False
+    for i in range(120):
+        mma_status = client.get_mma_status()
+        proposed = mma_status.get("proposed_tracks", [])
+        if proposed and len(proposed) > 0:
+            tracks_generated = True
+            print(f"[Test] Tracks generated after {i}s")
+            break
+        time.sleep(1)""",
+    """# 3. Verify that Tier 1 generates tracks
+    print("[Test] Polling for Tier 1 tracks...")
+    tracks_generated = False
+    for i in range(120):
+        mma_status = client.get_mma_status()
+        proposed = mma_status.get("proposed_tracks", [])
+        if proposed and len(proposed) > 0:
+            tracks_generated = True
+            print(f"[Test] Tracks generated after {i}s")
+            print(f"[Test] Proposed tracks: {proposed}")
+            break
+        # Debug: also check tier usage
+        if i % 10 == 0:
+            tier_usage = mma_status.get("mma_tier_usage", {})
+            print(f"[Test] Debug: tier_usage={tier_usage}, proposed={proposed}")
+        time.sleep(1)""",
+)
+
+with open("tests/test_visual_orchestration.py", "w", encoding="utf-8", newline="") as f:
+    f.write(content)
+
+print("Added debug to test")