fix: 消除生产代码中的 as any 类型不安全模式

- API 兼容层(openai/grok/gemini): 利用 BetaRawMessageStreamEvent 的
  discriminated union 在 switch/case 中直接属性访问，消除 ~29 个 as any
- ConsoleOAuthFlow: 用 as unknown as Parameters<typeof> 替代 as any
- performanceShim: 用 Record<string, unknown> 和显式类型断言替代 as any
- companionReact/auth: 直接访问已有类型属性消除 as any
- sliceAnsi/textHighlighting: 用 as Char 替代 as any（Token 联合类型收窄）
- ccrClient: 利用 RequestResult 类型收窄直接访问 retryAfterMs
- outputsScanner: 用 TurnStartTime.turnStartTime 属性访问替代双重断言
- plans: 用显式数组类型替代 as any[]
- FeedbackSurvey: 用 in 操作符和 Parameters<typeof> 替代 as any
- messageQueueManager: 用 Record<string, unknown> 替代 as any
- mcp.ts: 用 in 操作符类型守卫替代 as any

precheck 通过: typecheck 零错误 + 5420 测试全部通过 + lint 通过

src/components/ConsoleOAuthFlow.tsx

@@ -272,7 +272,9 @@ export function ConsoleOAuthFlow({
           throw new Error((orgResult as { valid: false; message: string }).message);
         }
         // Reset modelType to anthropic when using OAuth login
-        updateSettingsForSource('userSettings', { modelType: 'anthropic' } as any);
+        updateSettingsForSource('userSettings', { modelType: 'anthropic' } as unknown as Parameters<
+          typeof updateSettingsForSource
+        >[1]);
 
         setOAuthStatus({ state: 'success' });
         void sendNotification(
@@ -662,9 +664,9 @@ function OAuthStatusMessage({
         if (finalVals.sonnet_model) env.ANTHROPIC_DEFAULT_SONNET_MODEL = finalVals.sonnet_model;
         if (finalVals.opus_model) env.ANTHROPIC_DEFAULT_OPUS_MODEL = finalVals.opus_model;
         const { error } = updateSettingsForSource('userSettings', {
-          modelType: 'anthropic' as any,
+          modelType: 'anthropic',
           env,
-        } as any);
+        } as unknown as Parameters<typeof updateSettingsForSource>[1]);
         if (error) {
           setOAuthStatus({
             state: 'error',
@@ -1153,9 +1155,9 @@ function OAuthStatusMessage({
         if (finalVals.sonnet_model) env.GEMINI_DEFAULT_SONNET_MODEL = finalVals.sonnet_model;
         if (finalVals.opus_model) env.GEMINI_DEFAULT_OPUS_MODEL = finalVals.opus_model;
         const { error } = updateSettingsForSource('userSettings', {
-          modelType: 'gemini' as any,
+          modelType: 'gemini',
           env,
-        } as any);
+        } as unknown as Parameters<typeof updateSettingsForSource>[1]);
         if (error) {
           setOAuthStatus({
             state: 'error',