Schedule updates to pull star progression from AoC

[Kavignon]

Set up a scheduled GitHub Actions workflow to automatically update the cached star data from AoC every week, with daily updates in December.

Tasks

• Create a GitHub Actions workflow to run the data-fetching script weekly (or daily during December).
• Add environment variable support for authentication (e.g., AoC session cookie).
• Log update status and handle any errors in the workflow.