[shortcut] Add AI extension support

[vinsg]

Description

Add support for AI Extension to existing functionality. This allows users to search for and create new stories, including filtering by users, workflows, and epics.

Checklist

• I read the extension guidelines
• I read the documentation about publishing
• I ran npm run build and tested this distribution build in Raycast
• I checked that files in the assets folder are used by the extension itself
• I checked that assets used in the README are located outside the metadata folder if they were not generated with our metadata tool

[raycastbot]

Thank you for your contribution! 🎉

🔔 @Yukaii @robertn702 @BrianHicks you might want to have a look.

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You can expect an initial review within five business days.

[greptile-apps]

PR Summary

This PR adds AI extension support to the Shortcut extension, enabling users to search for and create stories through Raycast's AI interface.

• Added comprehensive search-stories.ts tool with detailed documentation on Shortcut's query syntax and operators
• Added create-story.ts tool with input validation, parameter mapping, and confirmation function showing related entities
• Added several utility tools (get-epics.ts, get-members.ts, etc.) for retrieving data from Shortcut API
• Added AI evaluation tests in package.json with mock data for retrieving stories, creating stories, and searching
• Updated CHANGELOG.md with a new entry "✨ AI Enhancements" using the required {PR_MERGE_DATE} template

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[andreaselia]

Hey @vinsg 👋

Great addition to the extension!

During testing I ran into an issue where one of the suggested AI prompts is "Create story 'Implement user profile page'", but this fails due to there being no "workflow state" provided. Would you mind updating this prompt, defaulting the workflow state to the first option such as "To Do", or making it a non-requirement?

I also created an account to try this out, added an API token, but for some reason it isn't able to find my story?