fix(docs): correct planService path in permission docs

[N123999]

Related Issue

No linked issue (docs path correction).

Problem

The §5.4 code example in the permission docs still points to src/plan/planService.ts, a path that no longer exists after the v2 directory reorg. The actual implementation lives at packages/agent-core-v2/src/agent/plan/planService.ts. Maintainers following the docs to the source would be misled.

What changed

Correct the example comment path to src/agent/plan/planService.ts in:

• packages/agent-core-v2/docs/Permission.md
• .agents/skills/agent-core-dev/permission.md

Docs-only fix; no runtime behavior change.

Checklist

• I have read the CONTRIBUTING document.
• I have linked a related issue, or explained the problem above.
• I have added tests that prove my feature works. (N/A — docs-only)
• Ran gen-changesets skill, or this PR needs no changeset.
• Ran gen-docs skill, or this PR needs no doc update. (this PR is the doc fix)

[changeset-bot]

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Latest commit: 72ff549

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