Require bearer tokens for "note" calls

[zahradtj]

GET/PUT/POST/DELETE calls to /note/<id> need to require a bearer token

[esamnyu]

This feature has been implemented. All GET/PUT/POST/DELETE calls to /note/<id> now require a bearer token for authentication. Here's a summary of the changes:

• Added a @token_required decorator that checks for a valid bearer token in the Authorization header.
• Applied this decorator to all note-related endpoints:
  • GET /notes/
  • POST /notes/
  • PUT /notes/
  • DELETE /notes/

The implementation can be found in the latest commit 97bb4b0e5bebdd604a0e951710c3eda723afcb96.

Please review and let me know if any further changes are needed.