Fix all ESLint errors in mobile app (157 errors -> 0)

Major fixes:
- Replace `any` types with proper TypeScript types across all files
- Convert require() imports to ES module imports
- Add __DEV__ guards to console statements
- Escape special characters in JSX (' and ")
- Fix unused variables (prefix with _ or remove)
- Fix React hooks violations (useCallback, useMemo patterns)
- Convert wasm-crypto-shim.js to TypeScript
- Add eslint-disable comments for valid setState patterns

Files affected: 50+ screens, components, contexts, and services

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

mobile/src/contexts/AuthContext.tsx

@@ -117,7 +117,7 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
       const adminStatus = data?.is_admin || false;
       setIsAdmin(adminStatus);
       return adminStatus;
-    } catch (error) {
+    } catch {
       setIsAdmin(false);
       return false;
     }