4.6.4-alpha

[c121914yu]

feat:

1. The dataset uses maxtokens as tok.
2. Link fetch support multiple selector.
3. Default dataset search prompt.

fix:

1. Share page permission

close issue:
#583

[sweep-ai]

Apply Sweep Rules to your PR?

• Apply: All new business logic should have corresponding unit tests.
• Apply: Refactor large functions to be more modular.
• Apply: Add docstrings to all functions and file headers.