bugfix

src/index.ts

@@ -1,3 +1,26 @@
+/**
+ * MetaMesh Plugin: language
+ *
+ * ============================================================================
+ * PLUGIN MOUNT ARCHITECTURE - DO NOT MODIFY WITHOUT AUTHORIZATION
+ * ============================================================================
+ *
+ * Each plugin container has exactly 3 mounts (2 for plugins without output):
+ *
+ *   1. /files              (READ-ONLY)  - Shared media files, read access only
+ *   2. /cache              (READ-WRITE) - Plugin-specific cache folder
+ *   3. /files/plugin/<id>  (READ-WRITE) - Plugin output folder (if needed)
+ *
+ * This plugin (language) only requires mount 2:
+ *   - /cache (RW) - to cache language aggregation results
+ *   - Note: This plugin aggregates metadata from ffmpeg, doesn't read files
+ *
+ * SECURITY: Plugins must NEVER write to /files directly.
+ * All write operations go to /cache or /files/plugin/<id> only.
+ *
+ * ============================================================================
+ */
+
 import Fastify from 'fastify';
 import type { HealthResponse, ProcessRequest, ProcessResponse, CallbackPayload, ConfigureRequest, ConfigureResponse } from './types.js';
 import { manifest, process as processFile } from './plugin.js';