Fix Deno workflows, native Deno projects, seed order and workspace exclusions

[likeBloodMoon]

Four review findings on #32, which was merged before they were addressed. Each fix comes with a test that failed before it.

Changes

• init no longer emits deno install --frozen. The action runs install-command before the build, and that command is not a dependency install on every Deno version, so a Deno workflow could stop at its first step. Deno now gets no install step, since deno task fetches what the build needs. An empty install-command already skips the step in action.yml.
• Native Deno projects without a package.json.
  • workflowFor used to skip everything when there was no package.json. It now reads deno.json or deno.jsonc for a build task, and sets up Deno and runs deno task build.
  • The JSONC reader leaves // inside strings alone (task commands often contain URLs) and accepts trailing commas.
  • A Deno config marks the project as Deno even before it has a lockfile.
  • A Deno task counts as the build only when Deno is the package manager, since npm cannot run one.
• Manifest seeds are queued before sitemap URLs. With a sitemap larger than --max-pages, the limit used to run out on sitemap entries first, leaving routes that only the Next.js build listed unrequested.
• Workspace exclusions are honoured. !apps/legacy in pnpm-workspace.yaml, or in package.json workspaces, is applied as a glob ignore, so an excluded package is no longer offered as a site.

Verification

• pnpm lint, pnpm typecheck and pnpm smoke pass.
• pnpm test: 1,531 tests pass. The only failing file is the Playwright test, which fails the same way on master in this container because of a Chromium mismatch; CI installs Chromium itself.
• New tests:
  • 3 in tests/cli/setup.test.ts (Deno without package.json, no Deno install step, deno.jsonc with comments);
  • 1 in tests/audit/crawl.test.ts (seeds survive maxPages with a larger sitemap);
  • 2 in tests/audit/workspaces.test.ts (pnpm and package.json exclusions).
• CHANGELOG has an Unreleased section with these fixes.

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https://claude.ai/code/session_013BXnvSeRtgZoTXe4j753gM

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