fix: correct gemini-embedding-001 dimension from 768 to 3072

- Fixed incorrect dimension configuration for gemini-embedding-001 model
- Updated comment in gemini.ts to reflect correct dimension (3072)
- This resolves Qdrant dimension mismatch errors when using Gemini embeddings

Fixes #7348

Author: roomote

src/services/code-index/embedders/gemini.ts

@@ -11,7 +11,7 @@ import { TelemetryService } from "@roo-code/telemetry"
  *
  * Supported models:
  * - text-embedding-004 (dimension: 768)
- * - gemini-embedding-001 (dimension: 768)
+ * - gemini-embedding-001 (dimension: 3072)
  */
 export class GeminiEmbedder implements IEmbedder {
 	private readonly openAICompatibleEmbedder: OpenAICompatibleEmbedder

src/shared/embeddingModels.ts

@@ -48,7 +48,7 @@ export const EMBEDDING_MODEL_PROFILES: EmbeddingModelProfiles = {
 	},
 	gemini: {
 		"text-embedding-004": { dimension: 768 },
-		"gemini-embedding-001": { dimension: 768, scoreThreshold: 0.4 },
+		"gemini-embedding-001": { dimension: 3072, scoreThreshold: 0.4 },
 	},
 	mistral: {
 		"codestral-embed-2505": { dimension: 1536, scoreThreshold: 0.4 },