Move the data directories too, not only the files inside them

Deployment/migrate_data_layout.sh

@@ -216,8 +216,14 @@ for f in "$DATA_DIR"/*-wal "$DATA_DIR"/*-shm; do
     classify "$f"
 done
 for f in "$DATA_DIR"/*; do
-    [[ -d "$f" ]] && continue                      # subfolders are the destinations
+    # Skip the destinations by name, not everything that happens to be a directory. ai_bugs/ and
-    case "$(basename "$f")" in *-wal|*-shm) continue ;; esac
+    # ai_chats/ are directories that belong under ai/, and an earlier version of this skipped
+    # every directory outright — which moved neither, silently, while the PHP layer had already
+    # been repointed at the new location. They were empty at the time; that was luck, not design.
+    case "$(basename "$f")" in
+        db|state|ai|cache|logs) continue ;;
+        *-wal|*-shm)            continue ;;
+    esac
     classify "$f"
 done
 shopt -u nullglob