fix(tests): scope migration-self-contained lint example to flat migrations/*.mo

[Kamirus]

Follow-up to #594.

The migration-self-contained example rule used **/migrations/** for both lintoko includes and [lint.extra], which could match any migrations directory anywhere in the tree and recurse into subfolders. Projects using enhanced migrations keep a flat migrations/*.mo chain (as configured via chain = "migrations" in mops.toml), so the example should mirror that layout.

Before

# migration-self-contained.toml
includes = ["**/migrations/**"]

# mops.toml
[lint.extra]
"migrations/**" = ["lint/migration-self-contained"]

After

# migration-self-contained.toml
includes = ["migrations/*.mo"]

# mops.toml
[lint.extra]
"migrations/*.mo" = ["lint/migration-self-contained"]

If your chain path differs (e.g. backend/migrations), set both includes and [lint.extra] to that path with /*.mo.

What is unchanged

No CLI behavior change — only the lint-extra-example-rules test fixture. No CHANGELOG entry.

Made with Cursor

[github-actions]

Cursor AI review

👍 APPROVE — looks safe to merge

Category	Assessment	Details
Summary	✅	Narrows the migration-self-contained lint example fixture from broad **/migrations/** / migrations/** globs to flat migrations/*.mo, matching enhanced-migration layout. No CLI or runtime behavior change.
Code Quality	✅	Minimal, focused diff; aligns the two glob sites (includes and [lint.extra]) that must stay in sync.
Consistency	✅	Matches existing docs examples in docs/docs/cli/4-dev/07-mops-lint.md and docs/docs/09-mops.toml.md, which already use migrations/*.mo.
Security	✅	Test-fixture-only change; no auth, integrity, or secrets surface touched.
Tests	✅	Fixture still targets migrations/20250101_000000_Init.mo; snapshot expectations unchanged and remain valid for the scoped pattern.
Maintainability	✅	Example rule no longer suggests overly broad globs that could match nested or unrelated migrations/ trees.

Verdict

Decision: APPROVE
Risk: Very Low
Reason: Test-fixture-only glob scoping with no CLI, backend, or docs changes; behavior for the existing fixture is unchanged and the patterns now match documented enhanced-migration conventions.

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Generated for commit 28006c4