feat(debarrel): sharding

[sahilmob]

• Debarrel sharding
• Move the skill installation step to a separate node

[Copilot]

Pull request overview

Adds sharding support to the debarrel codemod workflow and separates skill installation into its own workflow node to enable running the transform in shard-based PRs.

Changes:

• Introduces shard evaluation (by CODEOWNERS or directory) and a matrix-based PR strategy in the codemod workflow.
• Adds getSelector to support selecting candidate files for sharded execution.
• Adds codemodctl dependency and adjusts TypeScript config for the codemod package.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pnpm-lock.yaml	Locks new dependencies (notably codemodctl) and updated dependency graph.
codemods/debarrel/workflow.yaml	Adds shard evaluation node, matrix shard execution node that opens draft PRs, and separates skill installation into its own node.
codemods/debarrel/tsconfig.json	Removes a couple of compiler options and enables skipLibCheck.
codemods/debarrel/scripts/codemod.ts	Adds getSelector and updates transform signature to accept options.
codemods/debarrel/package.json	Adds codemodctl as a runtime dependency.

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

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[Copilot]

Setting skipLibCheck: true weakens the check-types gate by skipping type-checking of all declaration files, which can mask real type issues introduced by dependency updates. If this was added to work around a specific library typing problem, it would be better to address that directly (or at least document why this relaxation is necessary).

Suggested change

	"skipLibCheck": true
	"skipLibCheck": false