Enforce example registration in test-examples

[dktsudgg]

Closes #886

Summary

• Add registry-consistency tests that fail when an example in the examples/ directory is unregistered or a registered example has no matching directory.
• Make examples/test-examples/ a root Deno workspace member so that CI picks up the added tests.
• Register the previously missing solidstart example, and restore the cmd field of MultiHandleExample that a formatting sweep (74d18f0) accidentally renamed.

Test plan

• Tested with deno test --allow-all examples/test-examples and mise test
• mkdir examples/zz-fake && deno test --allow-all examples/test-examples fails, naming the unregistered directory

Test Screenshots

1. When an example in the examples/ directory is unregistered

2. When a registered example has no matching directory

AI assistance disclosure: Claude Code (claude-fable-5) helped implement and verify the change.

[netlify]

✅ Deploy Preview for fedify-json-schema canceled.

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[coderabbitai]

📝 Walkthrough

Walkthrough

The example test runner registers a SolidStart example, exposes registry-scanning helpers, supports safe imports, and adds tests for missing or unregistered example directories. Deno workspace and task configuration supports running the focused tests and runner.

Changes

Example registry validation

Layer / File(s)	Summary
Registry contracts and entries examples/test-examples/mod.ts	The multi-handle configuration requires cmd, and the server registry adds the solidstart example with its commands and readiness settings.
Runner scanning and execution wiring examples/test-examples/mod.ts, deno.json, examples/test-examples/deno.json	Exported helpers scan registered and filesystem examples, main() uses the scanner, execution is guarded by import.meta.main, and Deno workspace tasks are configured.
Registry consistency tests examples/test-examples/mod.test.ts	Tests verify that no example directories are unregistered and no registered examples are missing from the filesystem.

Estimated code review effort: 2 (Simple) | ~10 minutes

Suggested labels: examples

Suggested reviewers: dahlia

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The PR adds the requested check for unregistered examples and reports missing matches clearly, satisfying #886.
Out of Scope Changes check	✅ Passed	The additional workspace, example registry, and helper refactors all support the stated goal and do not appear unrelated.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title clearly summarizes the main change: enforcing example registration in test-examples.
Description check	✅ Passed	The description is directly related to the changeset and accurately describes the registry tests, workspace update, and example fixes.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[gemini-code-assist]

Code Review

This pull request registers a new solidstart example and introduces a test suite (test-examples) to ensure consistency between the physical directories in examples/ and the registered examples in mod.ts. The review feedback recommends ignoring hidden directories (such as .DS_Store or .git) and decoupling logical example names from physical directory names by introducing and checking against a getRegisteredExampleDirs() helper instead of getRegisteredExampleNames(). All review comments are constructive and provide actionable code suggestions to improve test robustness.

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[gemini-code-assist]

Update the import to use getRegisteredExampleDirs instead of getRegisteredExampleNames to support checking directory names rather than logical example names.

Suggested change

	import { getRegisteredExampleNames, scanUnregisteredExamples } from "./mod.ts";
	import { getRegisteredExampleDirs, scanUnregisteredExamples } from "./mod.ts";

[2chanhaeng]

LGTM! I left a little suggestion. And next time you open another PR, would you please mention the related issue at the very beginning of the PR body? It really helps with understanding the context faster.

[2chanhaeng]

I think it will be better like this:

  return new Set([
    ...SERVER_EXAMPLES,
    ...SCRIPT_EXAMPLES,
    ...MULTI_HANDLE_EXAMPLES,
    ...SKIPPED_EXAMPLES,
  ].map((e) => e.name))

[dktsudgg]

@2chanhaeng Thank you for your review! I added a new commit 2d186c2

I also moved the comment about the related issue to the top of PR