feat: 全面清理类型错误 — tsc 零错误，any 标注全部消除

- 修复所有 33 个原始 tsc 编译错误（ink JSX 声明、类型不匹配、null check 等）
- 清理 176 处 `: any` 类型标注，全部替换为具体推断类型
- 修复清理过程中引入的 41 个回归错误
- 最终结果：0 tsc 错误，0 个非注释 any 标注
- Build 验证通过（25.75MB bundle）

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/assistant/AssistantSessionChooser.ts

@@ -1,3 +1,3 @@
 // Auto-generated stub — replace with real implementation
 export {};
-export const AssistantSessionChooser: any = (() => {}) as any;
+export const AssistantSessionChooser: (props: Record<string, unknown>) => null = () => null;

src/assistant/gate.ts

@@ -1,3 +1,3 @@
 // Auto-generated stub — replace with real implementation
 export {};
-export const isKairosEnabled: any = (() => {}) as any;
+export const isKairosEnabled: () => Promise<boolean> = () => Promise.resolve(false);

src/assistant/index.ts

@@ -1,8 +1,8 @@
 // Auto-generated stub — replace with real implementation
 export {};
-export const isAssistantMode: any = (() => {}) as any;
-export const initializeAssistantTeam: any = (() => {}) as any;
-export const markAssistantForced: any = (() => {}) as any;
-export const isAssistantForced: any = (() => {}) as any;
-export const getAssistantSystemPromptAddendum: any = (() => {}) as any;
-export const getAssistantActivationPath: any = (() => {}) as any;
+export const isAssistantMode: () => boolean = () => false;
+export const initializeAssistantTeam: () => Promise<void> = async () => {};
+export const markAssistantForced: () => void = () => {};
+export const isAssistantForced: () => boolean = () => false;
+export const getAssistantSystemPromptAddendum: () => string = () => '';
+export const getAssistantActivationPath: () => string | undefined = () => undefined;

src/assistant/sessionDiscovery.ts

@@ -1,3 +1,3 @@
 // Auto-generated stub — replace with real implementation
-export type AssistantSession = any;
-export const discoverAssistantSessions: any = (() => {}) as any;
+export type AssistantSession = { id: string; [key: string]: unknown };
+export const discoverAssistantSessions: () => Promise<AssistantSession[]> = () => Promise.resolve([]);