fix(llm): use generic model fields in frontend instead of OllamaModels (#1093)

The frontend index page indexed cfg.OllamaModels[0] directly, which
panics with "index out of range [0] with length 0" when LLM_PROVIDER
is not ollama (config.go only populates OllamaModels for the ollama
provider). The CLI already uses cfg.LLMModelsList / cfg.ModelName,
so align the frontend with the same generic fields.

Also mark the configured MODEL_NAME as the selected option in the
dropdown so the initial display matches the user's .env choice.

Closes #1072

Author: Harry33t

llm/go-client/frontend/main.go

@@ -91,8 +91,8 @@ func main() {
 	r.GET("/", func(c *gin.Context) {
 		c.HTML(http.StatusOK, "index.html", gin.H{
 			"TimeoutSecond": cfg.TimeoutSeconds,
-			"OllamaModels":  cfg.OllamaModels,
-			"DefaultModel":  cfg.OllamaModels[0],
+			"Models":        cfg.LLMModelsList,
+			"DefaultModel":  cfg.ModelName,
 		})
 	})
 	r.POST("/api/chat", h.Chat)

llm/go-client/frontend/templates/index.html

@@ -21,8 +21,8 @@
       <h2>LLM Chat</h2>
       <div class="model-selector">
         <label for="model-select"></label><select id="model-select">
-          {{range .OllamaModels}}
-          <option value="{{.}}">{{.}}</option>
+          {{range .Models}}
+          <option value="{{.}}" {{if eq . $.DefaultModel}}selected{{end}}>{{.}}</option>
           {{end}}
         </select>
       </div>