- 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
