fix(embedder): update embedding model config and fix CLI calls

Author: Kavirubc

cmd/simili/commands/process.go

@@ -213,9 +213,13 @@ func runProcess() {
 	}
 
 	if geminiKey != "" {
-		embedder, err := gemini.NewEmbedder(geminiKey)
+		// Use configured model or default (passed as empty string)
+		embedder, err := gemini.NewEmbedder(geminiKey, cfg.Embedding.Model)
 		if err == nil {
 			deps.Embedder = embedder
+			if verbose {
+				fmt.Printf("Initialized Gemini Embedder with model: %s\n", cfg.Embedding.Model)
+			}
 		} else {
 			fmt.Printf("Warning: Failed to initialize Gemini embedder: %v\n", err)
 		}

internal/integrations/gemini/embedder.go

@@ -21,16 +21,20 @@ type Embedder struct {
 }
 
 // NewEmbedder creates a new Gemini embedder.
-func NewEmbedder(apiKey string) (*Embedder, error) {
+func NewEmbedder(apiKey, model string) (*Embedder, error) {
 	ctx := context.Background()
 	client, err := genai.NewClient(ctx, option.WithAPIKey(apiKey))
 	if err != nil {
 		return nil, fmt.Errorf("failed to create Gemini client: %w", err)
 	}
 
+	if model == "" {
+		model = "text-embedding-004" // Default to modern 768-dim model
+	}
+
 	return &Embedder{
 		client: client,
-		model:  "gemini-embedding-001", // 768 dimensions
+		model:  model,
 	}, nil
 }