Added a new 'Locations' section to docs/USER_NOTES.md containing:
- The user-provided Google Maps link (Battambang, Cambodia).
- The verified geolocation of the ZOLO Bridge server (Phnom Penh, Cambodia).
- Created `docs/INDEX.md` to categorize and index all repository documentation.
- Created `docs/USER_NOTES.md` as a dedicated place for user notes and external references.
- Updated `README.md` to link to the new documentation index and notes file.
- Preserved existing documentation structure while making it more navigable.
