fix(types): clean type fixes across 92 files

Apply proper TypeScript type corrections without any unsafe casts:
- Fix unknown/never/{} types from decompilation
- Correct function signatures and parameter types
- Add missing type declarations and interfaces
- Fix Ink component prop types
- Update API client/provider type annotations

Test files with mock data casts are included as-is (acceptable pattern).

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

src/components/FeedbackSurvey/useMemorySurvey.tsx

@@ -249,7 +249,7 @@ export function useMemorySurvey(
       return
     }
 
-    const text = extractTextContent(lastAssistant.message.content, ' ')
+    const text = extractTextContent(Array.isArray(lastAssistant.message.content) ? lastAssistant.message.content : [], ' ')
     if (!MEMORY_WORD_RE.test(text)) {
       return
     }