style: apply code formatting across backend and frontend (#252)

Apply cargo fmt and prettier formatting to improve code readability.
No functional changes.

Changes:
- Rust: multi-line assertion formatting (gemini_config, env_checker)
- Rust: simplify chained method calls (provider)
- TypeScript: add trailing commas to function parameters (codexProviderPresets)

src-tauri/src/gemini_config.rs

@@ -381,14 +381,20 @@ GEMINI_MODEL=gemini-3-pro-preview
             Some(&"https://example.com".to_string())
         );
         assert_eq!(map.get("GEMINI_API_KEY"), Some(&"sk-test123".to_string()));
-        assert_eq!(map.get("GEMINI_MODEL"), Some(&"gemini-3-pro-preview".to_string()));
+        assert_eq!(
+            map.get("GEMINI_MODEL"),
+            Some(&"gemini-3-pro-preview".to_string())
+        );
     }
 
     #[test]
     fn test_serialize_env_file() {
         let mut map = HashMap::new();
         map.insert("GEMINI_API_KEY".to_string(), "sk-test".to_string());
-        map.insert("GEMINI_MODEL".to_string(), "gemini-3-pro-preview".to_string());
+        map.insert(
+            "GEMINI_MODEL".to_string(),
+            "gemini-3-pro-preview".to_string(),
+        );
 
         let content = serialize_env_file(&map);
 
@@ -432,7 +438,10 @@ GEMINI_MODEL=gemini-3-pro-preview
             Some(&"https://example.com".to_string())
         );
         assert_eq!(map.get("GEMINI_API_KEY"), Some(&"sk-test123".to_string()));
-        assert_eq!(map.get("GEMINI_MODEL"), Some(&"gemini-3-pro-preview".to_string()));
+        assert_eq!(
+            map.get("GEMINI_MODEL"),
+            Some(&"gemini-3-pro-preview".to_string())
+        );
     }
 
     #[test]

src-tauri/src/services/env_checker.rs

@@ -159,7 +159,10 @@ mod tests {
     fn test_get_keywords() {
         assert_eq!(get_keywords_for_app("claude"), vec!["ANTHROPIC"]);
         assert_eq!(get_keywords_for_app("codex"), vec!["OPENAI"]);
-        assert_eq!(get_keywords_for_app("gemini"), vec!["GEMINI", "GOOGLE_GEMINI"]);
+        assert_eq!(
+            get_keywords_for_app("gemini"),
+            vec!["GEMINI", "GOOGLE_GEMINI"]
+        );
         assert_eq!(get_keywords_for_app("unknown"), Vec::<&str>::new());
     }
 }

src-tauri/src/services/provider.rs

@@ -863,10 +863,7 @@ impl ProviderService {
 
                 let env_map = read_gemini_env()?;
                 let env_json = env_to_json(&env_map);
-                let env_obj = env_json
+                let env_obj = env_json.get("env").cloned().unwrap_or_else(|| json!({}));
-                    .get("env")
-                    .cloned()
-                    .unwrap_or_else(|| json!({}));
 
                 // 读取 settings.json 文件（MCP 配置等）
                 let settings_path = get_gemini_settings_path();
@@ -951,10 +948,7 @@ impl ProviderService {
 
                 let env_map = read_gemini_env()?;
                 let env_json = env_to_json(&env_map);
-                let env_obj = env_json
+                let env_obj = env_json.get("env").cloned().unwrap_or_else(|| json!({}));
-                    .get("env")
-                    .cloned()
-                    .unwrap_or_else(|| json!({}));
 
                 // 读取 settings.json 文件（MCP 配置等）
                 let settings_path = get_gemini_settings_path();

src/config/codexProviderPresets.ts

@@ -37,7 +37,7 @@ export function generateThirdPartyAuth(apiKey: string): Record<string, any> {
 export function generateThirdPartyConfig(
   providerName: string,
   baseUrl: string,
-  modelName = "gpt-5-codex"
+  modelName = "gpt-5-codex",
 ): string {
   // 清理供应商名称，确保符合TOML键名规范
   const cleanProviderName =
@@ -106,7 +106,7 @@ requires_openai_auth = true`,
     config: generateThirdPartyConfig(
       "aihubmix",
       "https://aihubmix.com/v1",
-      "gpt-5-codex"
+      "gpt-5-codex",
     ),
     endpointCandidates: [
       "https://aihubmix.com/v1",
@@ -121,7 +121,7 @@ requires_openai_auth = true`,
     config: generateThirdPartyConfig(
       "dmxapi",
       "https://www.dmxapi.cn/v1",
-      "gpt-5-codex"
+      "gpt-5-codex",
     ),
     endpointCandidates: ["https://www.dmxapi.cn/v1"],
   },
@@ -134,7 +134,7 @@ requires_openai_auth = true`,
     config: generateThirdPartyConfig(
       "packycode",
       "https://www.packyapi.com/v1",
-      "gpt-5-codex"
+      "gpt-5-codex",
     ),
     endpointCandidates: [
       "https://www.packyapi.com/v1",