Make year and day arguments optional to run all days/years

[Copilot]

Enables running all days from a specific year or all years without requiring explicit arguments. Previously, omitting arguments threw an error.

Changes

• Made CLI arguments optional: Both year and day now use Args.optional, supporting three modes:

  • No args: runs all years and days
  • Year only: runs all days for that year
  • Year + day: runs specific day (original behavior)

• Extracted helper functions to eliminate duplication:

  • getAvailableDaysForYear(year): discovers available days
  • runDayWithErrorHandling(year, day): batch execution with error isolation

• Optimized initialization: years sorted once at startup rather than per execution

Usage

bun run src/bin.ts           # runs all years and days
bun run src/bin.ts 2025      # runs all days from 2025
bun run src/bin.ts 2025 1    # runs day 1 from 2025

Errors in individual days don't halt batch execution—remaining days continue running.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Add command to run all days</issue_title>
<issue_description>Command to run all days from a specific year
Command to run all days from all years

Probably best to do this instead of throwing an error if the arguments aren't passed.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add command to run all days #5

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