feat: add gemini memory embeddings

src/config/schema.ts

@@ -374,9 +374,9 @@ const FIELD_HELP: Record<string, string> = {
     'Sources to index for memory search (default: ["memory"]; add "sessions" to include session transcripts).',
   "agents.defaults.memorySearch.experimental.sessionMemory":
     "Enable experimental session transcript indexing for memory search (default: false).",
-  "agents.defaults.memorySearch.provider": 'Embedding provider ("openai" or "local").',
+  "agents.defaults.memorySearch.provider": 'Embedding provider ("openai", "gemini", or "local").',
   "agents.defaults.memorySearch.remote.baseUrl":
-    "Custom OpenAI-compatible base URL (e.g. for Gemini/OpenRouter proxies).",
+    "Custom base URL for remote embeddings (OpenAI-compatible proxies or Gemini overrides).",
   "agents.defaults.memorySearch.remote.apiKey": "Custom API key for the remote embedding provider.",
   "agents.defaults.memorySearch.remote.headers":
     "Extra headers for remote embeddings (merged; remote overrides OpenAI headers).",

src/config/types.tools.ts

@@ -170,7 +170,7 @@ export type MemorySearchConfig = {
     sessionMemory?: boolean;
   };
   /** Embedding provider mode. */
-  provider?: "openai" | "local";
+  provider?: "openai" | "gemini" | "local";
   remote?: {
     baseUrl?: string;
     apiKey?: string;

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

@@ -218,7 +218,7 @@ export const MemorySearchSchema = z
         sessionMemory: z.boolean().optional(),
       })
       .optional(),
-    provider: z.union([z.literal("openai"), z.literal("local")]).optional(),
+    provider: z.union([z.literal("openai"), z.literal("gemini"), z.literal("local")]).optional(),
     remote: z
       .object({
         baseUrl: z.string().optional(),