- Replace all TypeToken usage with JsonParser/gson.fromJson (fixes R8/ProGuard crash)
- Add parseJsonArray/parseJsonObject helpers for API response parsing
- Fix contentToMarkdown to properly convert TipTap JSON objects to Markdown
using tiptapToMarkdown instead of returning raw JSON
- Fix API endpoints to handle unwrapped response formats
- Add ProGuard rules for Gson TypeToken preservation
- Redirect build dir to /tmp for Samba compatibility
