feat(cli): Surface routing recipes in the help index

[thecodedrift]

Make the routing recipes discoverable. The taskless help no-arg index previously listed only real subcommands; this adds an "Authoring recipes" section listing route/existing/static/remote so an agent landing on the index can find the rule-authoring front door.

Intent telemetry needs no new code: the help command already emits help_<topic> for any resolved topic, so the routing topics inherit it. Tests cover all three surfaces:

• integration: each routing topic resolves via taskless help <topic> (no unknown-topic error), and the index lists all four;
• in-process: help_route / help_existing / help_static / help_remote are captured when each topic is fetched (telemetry module mocked, mirroring the existing posthog mock pattern).

Stacked on #25. Skill posture change (engaging routing on a named linter) lands next.

Refs TSKL Runtime Rules

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• main
  • docs(openspec): Propose local-rule-routing change #23
    • feat(cli): Add deterministic detect command for rule routing #24
      • feat(cli): Add route/existing/static/remote authoring recipes #25
        • feat(cli): Surface routing recipes in the help index 👈
          • feat(skill): Engage routing when a linter is named #27
            • test(cli): Add route honesty eval fixtures and finalize change #28

^{Stack generated by Git Town}

[Copilot]

Pull request overview

This PR makes the new routing authoring recipes discoverable from the taskless help no-args index by adding an “Authoring recipes” section, and adds automated coverage to ensure both topic resolution and intent telemetry work for the routing topics.

Changes:

• Add an “Authoring recipes” section to taskless help (no args) listing route, existing, static, and remote.
• Add integration tests asserting the index lists the routing topics and taskless help <topic> resolves each recipe.
• Add an in-process test that mocks telemetry and asserts help_<topic> capture for each routing topic.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
packages/cli/test/help-routing-telemetry.test.ts	Adds a unit-style telemetry capture test for help_route / help_existing / help_static / help_remote.
packages/cli/test/help-extensions.test.ts	Extends CLI integration tests to validate index discoverability and recipe resolution for routing topics.
packages/cli/src/commands/help.ts	Adds a recipe-topic index section and aligns table padding across command topics + recipe topics.
openspec/changes/local-rule-routing/tasks.md	Marks the “Help registration + telemetry” checklist items as completed.

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[thecodedrift]

Flagging the posthog telemetry changes #33 / #34 / #35 / #36 / #37 which impact this. Whichever lands first will trigger a large refactor for the other.