Add local AI and Qdrant vector backends

scripts/tmp-init-vec.js

@@ -8,13 +8,18 @@ if (!dbPath) {
 }
 
 const db = new Database(dbPath);
-const vecPath = path.join(process.cwd(), 'vendor', 'sqlite-extensions', 'vec0.dylib');
+const ext = process.platform === 'darwin' ? 'dylib' : process.platform === 'win32' ? 'dll' : 'so';
+const vecPath = process.env.SQLITE_VEC_EXTENSION_PATH || path.join(process.cwd(), 'vendor', 'sqlite-extensions', `vec0.${ext}`);
+const dimensions = Number(process.env.EMBEDDING_DIMENSIONS || '1536');
+if (!Number.isInteger(dimensions) || dimensions <= 0) {
+  throw new Error(`Invalid EMBEDDING_DIMENSIONS="${process.env.EMBEDDING_DIMENSIONS}"`);
+}
 
 db.loadExtension(vecPath);
 db.exec(`
-  CREATE VIRTUAL TABLE IF NOT EXISTS vec_nodes USING vec0(node_id INTEGER PRIMARY KEY, embedding FLOAT[1536]);
-  CREATE VIRTUAL TABLE IF NOT EXISTS vec_chunks USING vec0(chunk_id INTEGER PRIMARY KEY, embedding FLOAT[1536]);
+  CREATE VIRTUAL TABLE IF NOT EXISTS vec_nodes USING vec0(node_id INTEGER PRIMARY KEY, embedding FLOAT[${dimensions}]);
+  CREATE VIRTUAL TABLE IF NOT EXISTS vec_chunks USING vec0(chunk_id INTEGER PRIMARY KEY, embedding FLOAT[${dimensions}]);
 `);
 
 console.log('✓ vec tables ensured');
-db.close();
+db.close();