fix(common-config): reset initialization flag when preset changes

The common config checkbox was only auto-enabled for the first preset
(custom) because hasInitializedNewMode ref was permanently locked to
true after first initialization.

Add selectedPresetId parameter to all three common config hooks and
reset the initialization flag when preset changes, allowing the
initialization logic to re-run for each preset switch.

src/components/providers/forms/ProviderForm.tsx

@@ -358,6 +358,7 @@ export function ProviderForm({
     settingsConfig: form.watch("settingsConfig"),
     onConfigChange: (config) => form.setValue("settingsConfig", config),
     initialData: appId === "claude" ? initialData : undefined,
+    selectedPresetId: selectedPresetId ?? undefined,
   });
 
   // 使用 Codex 通用配置片段 hook (仅 Codex 模式)
@@ -373,6 +374,7 @@ export function ProviderForm({
     codexConfig,
     onConfigChange: handleCodexConfigChange,
     initialData: appId === "codex" ? initialData : undefined,
+    selectedPresetId: selectedPresetId ?? undefined,
   });
 
   // 使用 Gemini 配置 hook (仅 Gemini 模式)
@@ -460,6 +462,7 @@ export function ProviderForm({
     envStringToObj,
     envObjToString,
     initialData: appId === "gemini" ? initialData : undefined,
+    selectedPresetId: selectedPresetId ?? undefined,
   });
 
   const [isCommonConfigModalOpen, setIsCommonConfigModalOpen] = useState(false);

src/components/providers/forms/hooks/useCodexCommonConfig.ts

@@ -16,6 +16,7 @@ interface UseCodexCommonConfigProps {
   initialData?: {
     settingsConfig?: Record<string, unknown>;
   };
+  selectedPresetId?: string;
 }
 
 /**
@@ -26,6 +27,7 @@ export function useCodexCommonConfig({
   codexConfig,
   onConfigChange,
   initialData,
+  selectedPresetId,
 }: UseCodexCommonConfigProps) {
   const { t } = useTranslation();
   const [useCommonConfig, setUseCommonConfig] = useState(false);
@@ -41,6 +43,11 @@ export function useCodexCommonConfig({
   // 用于跟踪新建模式是否已初始化默认勾选
   const hasInitializedNewMode = useRef(false);
 
+  // 当预设变化时，重置初始化标记，使新预设能够重新触发初始化逻辑
+  useEffect(() => {
+    hasInitializedNewMode.current = false;
+  }, [selectedPresetId]);
+
   // 初始化：从 config.json 加载，支持从 localStorage 迁移
   useEffect(() => {
     let mounted = true;

src/components/providers/forms/hooks/useCommonConfigSnippet.ts

@@ -18,6 +18,7 @@ interface UseCommonConfigSnippetProps {
   initialData?: {
     settingsConfig?: Record<string, unknown>;
   };
+  selectedPresetId?: string;
 }
 
 /**
@@ -28,6 +29,7 @@ export function useCommonConfigSnippet({
   settingsConfig,
   onConfigChange,
   initialData,
+  selectedPresetId,
 }: UseCommonConfigSnippetProps) {
   const { t } = useTranslation();
   const [useCommonConfig, setUseCommonConfig] = useState(false);
@@ -43,6 +45,11 @@ export function useCommonConfigSnippet({
   // 用于跟踪新建模式是否已初始化默认勾选
   const hasInitializedNewMode = useRef(false);
 
+  // 当预设变化时，重置初始化标记，使新预设能够重新触发初始化逻辑
+  useEffect(() => {
+    hasInitializedNewMode.current = false;
+  }, [selectedPresetId]);
+
   // 初始化：从 config.json 加载，支持从 localStorage 迁移
   useEffect(() => {
     let mounted = true;

src/components/providers/forms/hooks/useGeminiCommonConfig.ts

@@ -19,6 +19,7 @@ interface UseGeminiCommonConfigProps {
   initialData?: {
     settingsConfig?: Record<string, unknown>;
   };
+  selectedPresetId?: string;
 }
 
 function isPlainObject(value: unknown): value is Record<string, unknown> {
@@ -42,6 +43,7 @@ export function useGeminiCommonConfig({
   envStringToObj,
   envObjToString,
   initialData,
+  selectedPresetId,
 }: UseGeminiCommonConfigProps) {
   const { t } = useTranslation();
   const [useCommonConfig, setUseCommonConfig] = useState(false);
@@ -57,6 +59,11 @@ export function useGeminiCommonConfig({
   // 用于跟踪新建模式是否已初始化默认勾选
   const hasInitializedNewMode = useRef(false);
 
+  // 当预设变化时，重置初始化标记，使新预设能够重新触发初始化逻辑
+  useEffect(() => {
+    hasInitializedNewMode.current = false;
+  }, [selectedPresetId]);
+
   const parseSnippetEnv = useCallback(
     (
       snippetString: string,