feat: add sqlite-vec memory search acceleration

src/config/schema.ts

@@ -176,6 +176,9 @@ const FIELD_LABELS: Record<string, string> = {
   "agents.defaults.memorySearch.fallback": "Memory Search Fallback",
   "agents.defaults.memorySearch.local.modelPath": "Local Embedding Model Path",
   "agents.defaults.memorySearch.store.path": "Memory Search Index Path",
+  "agents.defaults.memorySearch.store.vector.enabled": "Memory Search Vector Index",
+  "agents.defaults.memorySearch.store.vector.extensionPath":
+    "Memory Search Vector Extension Path",
   "agents.defaults.memorySearch.chunking.tokens": "Memory Chunk Tokens",
   "agents.defaults.memorySearch.chunking.overlap": "Memory Chunk Overlap Tokens",
   "agents.defaults.memorySearch.sync.onSessionStart": "Index on Session Start",
@@ -362,7 +365,11 @@ const FIELD_HELP: Record<string, string> = {
   "agents.defaults.memorySearch.fallback":
     'Fallback to OpenAI when local embeddings fail ("openai" or "none").',
   "agents.defaults.memorySearch.store.path":
-    "SQLite index path (default: ~/.clawdbot/memory/{agentId}.sqlite).",
+    "SQLite index path (default: ~/.clawdbot/state/memory/{agentId}.sqlite).",
+  "agents.defaults.memorySearch.store.vector.enabled":
+    "Enable sqlite-vec extension for vector search (default: true).",
+  "agents.defaults.memorySearch.store.vector.extensionPath":
+    "Optional override path to sqlite-vec extension library (.dylib/.so/.dll).",
   "agents.defaults.memorySearch.sync.onSearch":
     "Lazy sync: reindex on first search after a change.",
   "agents.defaults.memorySearch.sync.watch": "Watch memory files for changes (chokidar).",

src/config/types.tools.ts

@@ -167,6 +167,12 @@ export type MemorySearchConfig = {
   store?: {
     driver?: "sqlite";
     path?: string;
+    vector?: {
+      /** Enable sqlite-vec extension for vector search (default: true). */
+      enabled?: boolean;
+      /** Optional override path to sqlite-vec extension (.dylib/.so/.dll). */
+      extensionPath?: string;
+    };
   };
   /** Chunking configuration. */
   chunking?: {

src/config/zod-schema.agent-runtime.ts

@@ -214,6 +214,12 @@ export const MemorySearchSchema = z
       .object({
         driver: z.literal("sqlite").optional(),
         path: z.string().optional(),
+        vector: z
+          .object({
+            enabled: z.boolean().optional(),
+            extensionPath: z.string().optional(),
+          })
+          .optional(),
       })
       .optional(),
     chunking: z