🔨 Update default models for Anthropic and Google

Update the default model identifiers for the Anthropic and Google LLM
providers to use more recent versions.

- The Anthropic default model is changed from `claude-3-7-sonnet-latest`
  to `claude-sonnet-4-20250514`.
- The Google default model is changed from `gemini-2.0-flash` to
  `gemini-2.5-pro-preview-06-05`.

The unit tests in `llm_tests.rs` have been updated to reflect these
new default values.

Author: hyperb1iss

src/llm.rs

@@ -237,9 +237,9 @@ pub fn get_available_provider_names() -> Vec<String> {
 /// Returns the default model for a given provider
 pub fn get_default_model_for_provider(provider_type: &str) -> &'static str {
     match provider_type.to_lowercase().as_str() {
-        "anthropic" => "claude-3-7-sonnet-latest",
+        "anthropic" => "claude-sonnet-4-20250514",
         "ollama" => "llama3",
-        "google" => "gemini-2.0-flash",
+        "google" => "gemini-2.5-pro-preview-06-05",
         "groq" => "llama-3.1-70b-versatile",
         "xai" => "grok-2-beta",
         "deepseek" => "deepseek-chat",

tests/llm_tests.rs

@@ -32,9 +32,12 @@ fn test_get_default_model_for_provider() {
     assert_eq!(get_default_model_for_provider("openai"), "gpt-4.1");
     assert_eq!(
         get_default_model_for_provider("anthropic"),
-        "claude-3-7-sonnet-latest"
+        "claude-sonnet-4-20250514"
+    );
+    assert_eq!(
+        get_default_model_for_provider("google"),
+        "gemini-2.5-pro-preview-06-05"
     );
-    assert_eq!(get_default_model_for_provider("google"), "gemini-2.0-flash");
     assert_eq!(get_default_model_for_provider("xai"), "grok-2-beta");
 
     // Test fallback for unknown provider