- Implemented ListMilestones, GetMilestone, and MilestoneWrite functions for managing GitHub milestones.- Added corresponding test cases to ensure functionality and error handling.- Created tool definitions and input schemas for each milestone operation.- Included snapshots for tool definitions to facilitate testing and validation.This update enhances the GitHub integration by allowing users to list, retrieve, create, update, and delete milestones in repositories.

- Updated ListMilestones and GetMilestone functions to incorporate a lockdown mode feature, filtering milestones based on creator access.- Introduced a RepoAccessCache to manage access checks efficiently.- Added new test cases to validate the functionality of the lockdown mode, ensuring proper handling of milestones based on creator permissions.- Adjusted tool definitions to accommodate the new parameters for cache and feature flags.

- Updated milestone test cases to ignore the request parameter in handler functions for improved clarity.- Integrated data sanitization for milestone titles and descriptions to ensure safe handling of user input.- Adjusted the milestone summary function to utilize sanitized values, enhancing security and consistency.

- Added documentation for new milestone management functions: get_milestone, list_milestones, and milestone_write.- Included required parameters and options for each function to improve clarity and usability for developers.

- Implemented the search_milestones function to allow searching for repository milestones based on title and description.- Added input schema and validation for required parameters: owner, repo, and query.- Created test cases to validate the functionality, including success scenarios and error handling for invalid inputs.- Updated README to document the new search_milestones tool and its parameters.- Included snapshots for tool definitions to facilitate testing and validation.

- Introduced new test cases for the SearchMilestones function, including wildcard matching and filtering by creator login.- Enhanced the SearchMilestones implementation to support wildcard queries and creator login matching.- Added a test to verify that lockdown mode correctly blocks milestones created by unsafe users.- Improved query handling by trimming whitespace and allowing for empty queries to match all milestones.