Add missing API endpoints for puzzles, broadcasts, and users

[nkc-137]

Summary

Adds new client methods and types for puzzle replay/race APIs, introduces a broadcast round reset endpoint, and adds the user note creation endpoint. Includes VCR cassettes/tests and updates README. This PR is to implement a few action items from #6.

Details

• Added client.puzzles.get_puzzles_to_replay and client.puzzles.get_race with new TypedDicts for replay and race responses in berserk/types/.
• Added VCR tests and cassettes for puzzle replay and race endpoints.
• Added client.broadcasts.reset_round and documented it in README.
• Added client.users.create_note and documented it in README.

Testing

• Ran make test

configfile: pyproject.toml
plugins: recording-0.13.4, requests-mock-1.12.1
collected 53 items

tests/clients/test_analysis.py .                                                             [  1%]
tests/clients/test_broadcasts.py ...                                                         [  7%]
tests/clients/test_fide.py ..                                                                [ 11%]
tests/clients/test_opening_explorer.py ........                                              [ 26%]
tests/clients/test_puzzles.py ...                                                            [ 32%]
tests/clients/test_teams.py ....                                                             [ 39%]
tests/clients/test_tournaments.py ....                                                       [ 47%]
tests/clients/test_users.py ....                                                             [ 54%]
tests/test_config.py ..                                                                      [ 58%]
tests/test_formats.py .......                                                                [ 71%]
tests/test_models.py ..                                                                      [ 75%]
tests/test_session.py ...                                                                    [ 81%]
tests/test_utils.py ..........                                                               [100%]

======================================== 53 passed in 0.29s ========================================

Checklist when adding a new endpoint

• Added new endpoint to the README.md
• Ensured that my endpoint name does not repeat the name of the client. Wrong: client.users.get_user(), Correct: client.users.get()
• Typed the returned JSON using TypedDicts in berserk/types/, example
• Written tests for GET endpoints not requiring authentification. Documentation, example
• Added the endpoint and your name to CHANGELOG.md in the To be released section (to be created if necessary)

[zaderrr]

Hi, I worked on a notes endpoint implementation, I didn't check the active PRs well enough and can see you've added the create note endpoint. Just added a comment as it's missing some data for the creation and not pointing to the correct endpoint

[zaderrr]

This doesn't go to the note endpoint, also the note body isn't passed anywhere for the creation.