test(analyze): cover unstable onRouteChange calls

[lntutor]

Summary

• add focused regression coverage for module-scope onRouteChange() calls
• cover conditional component calls through askr/stable-render-call
• assert both diagnostics remain errors

Context

The catalog fix from issue #41 was merged in #58 while this PR was open. That merge added onRouteChange to the lifecycle catalog but did not retain focused coverage for the rule behavior. This rebased PR now contains only that missing regression test.

Validation

• full npm run check: lint, typecheck, 202 tests with coverage, build, publint, and package dry-run

[lntutor]

Rebased onto current main after #58 merged. The implementation is already upstream, so this PR now contains only the missing focused regression coverage for module-scope and conditional onRouteChange() calls. The full repository check passes (202 tests, lint, typecheck, coverage, build, publint, package dry-run).