Fetch and copy AI instructions from theme-liquid-docs

[aswamy]

WHY are these changes introduced?

• Feature: Fetch new AI instructions from theme-liquid-docs
• Bug Fix: Only remove .github, .cursor, and .claude directories if it's NOT a skeleton theme
  • If you're cloning a theme repo that isn't ours (by passing in the --clone-url flag), we shouldn't be removing directories

WHAT is this pull request doing?

• Fetch it into a temp directory and copy content
• Add a new utility that copies content from src directory instead of overriding the whole directory

How to test your changes?

Initializing Skeleton Theme

• shopify theme init
• Select to create AI instructions (try each one)
• You should have a new directory in the file system .github, .cursor, or .claude` that contains AI instructions

Initializing non-Skeleton Theme

• shopify theme init --clone-url "https://github.com/shopify-playground/alok-sandbox"
• Select to create AI instructions (try each one)
• Existing .github, .cursor, and .claude` directories are NOT deleted
• AI Instructions are merged in with existing content

Post-release steps

n/a

Measuring impact

How do we know this change was effective? Please choose one:

• n/a - this doesn't need measurement, e.g. a linting rule or a bug-fix
• Existing analytics will cater for this addition
• PR includes analytics changes to measure impact

Checklist

• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've considered possible documentation changes

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	78.33% (-0.01% 🔻)	13243/16906
🟡	Branches	72.38% (+0.03% 🔼)	6474/8944
🟡	Functions	78.55% (-0.02% 🔻)	3450/4392
🟡	Lines	78.7% (-0.01% 🔻)	12528/15919

Show files with reduced coverage 🔻

St.❔	File	Statements	Branches	Functions	Lines
🔴	... / init.ts	28.57% (-8.27% 🔻)	0%	0%	30% (-8.89% 🔻)
🟢	... / init.ts	88.89% (-11.11% 🔻)	66.67% (-13.33% 🔻)	81.82% (-18.18% 🔻)	88.89% (-11.11% 🔻)

Test suite run success

3149 tests passing in 1328 suites.

Report generated by 🧪jest coverage report action from 9b872dc

[graygilmore]

/snapit

[github-actions]

🫰✨ Thanks @graygilmore! Your snapshot has been published to npm.

Test the snapshot by installing your package globally:

pnpm i -g @shopify/[email protected]

Tip

If you get an ETARGET error, install it with NPM and the flag --@shopify:registry=https://registry.npmjs.org

Caution

After installing, validate the version by running just shopify in your terminal.
If the versions don't match, you might have multiple global instances installed.
Use which shopify to find out which one you are running and uninstall it.

[graygilmore]

🎩 went great

[karreiro]

Thank you for this PR, @aswamy! 🚀 I've left only one minor suggestion and one question. Please let me know your thoughts about them :)

[github-actions]

Differences in type declarations

We detected differences in the type declarations generated by Typescript for this branch compared to the baseline ('main' branch). Please, review them to ensure they are backward-compatible. Here are some important things to keep in mind:

• Some seemingly private modules might be re-exported through public modules.
• If the branch is behind main you might see odd diffs, rebase main into this branch.

New type declarations

We found no new type declarations in this PR

Existing type declarations

packages/cli-kit/dist/public/node/fs.d.ts

@@ -329,4 +329,11 @@ export declare function matchGlob(key: string, pattern: string, options?: MatchG
  * @returns A promise that resolves to an array of file names.
  */
 export declare function readdir(path: string): Promise<string[]>;
+/**
+ * Copies the contents of a directory to another directory.
+ *
+ * @param srcDir - Source directory path.
+ * @param destDir - Destination directory path.
+ */
+export declare function copyDirectoryContents(srcDir: string, destDir: string): Promise<void>;
 export {};
\ No newline at end of file