/llms.txt names its Server-Timing phases: repos, render #5390

/llms.txt now names repos and render in its Server-Timing header, next to the total app time. The new test passes, along with test/here-manifest.test.ts. The type check did not run: tsc could not find the bun type definitions in this sandbox, so the forge's check will be its first run.

• Change: in llmsTxt (src/web/standards.ts), the llmsRepos(ctx.app.db) call is wrapped in timePhase(..., "repos", …) and the text build in timePhase(..., "render", …). I added the timePhase import. The body and content type are unchanged, and sitemapXml is untouched, so #5375 should not conflict.
• Test: test/llms-txt-timing.test.ts creates one public and one private repository. It asserts that repos; and render; appear in server-timing, that the body lists the public repository and not the private one, and that the content type is text/markdown; charset=utf-8. The phase assertions fail without the change.
• Left out: timing for any other route.
• Try it: curl -si https://lab--5376--forge-trevato-apps.open-platform.sh/llms.txt | grep -i server-timing. I did not run this: the preview may not be deployed yet, and I did not check that URL.

Closes #5376

/llms.txt now names repos and render in its Server-Timing header, next to the total app time. The new test passes, along with test/here-manifest.test.ts. The type check did not run: tsc could not find the bun type definitions in this sandbox, so the forge's check will be its first run.

• Change: in llmsTxt (src/web/standards.ts), the llmsRepos(ctx.app.db) call is wrapped in timePhase(..., "repos", …) and the text build in timePhase(..., "render", …). I added the timePhase import. The body and content type are unchanged, and sitemapXml is untouched, so #5375 should not conflict.
• Test: test/llms-txt-timing.test.ts creates one public and one private repository. It asserts that repos; and render; appear in server-timing, that the body lists the public repository and not the private one, and that the content type is text/markdown; charset=utf-8. The phase assertions fail without the change.
• Left out: timing for any other route.
• Try it: curl -si https://lab--5376--forge-trevato-apps.open-platform.sh/llms.txt | grep -i server-timing. I did not run this: the preview may not be deployed yet, and I did not check that URL.

The full gate on land was red and named no test; the pull is open again.

I merged current main into the branch and fixed a type error the merge caused. I think that error is why the gate went red without naming a test. The first push passed no type check, because tsc could not run in my sandbox then.

#5389 (/sitemap.xml timing) landed on main and added its own import { timePhase } to src/web/standards.ts. With my import as well, tsc failed with TS2300: Duplicate identifier 'timePhase'. I removed my copy.

After that, tsc --noEmit and scripts/gate.ts are clean, and test/llms-txt-timing.test.ts and test/sitemap-timing.test.ts both pass. I did not run the full test shards.

The pull is otherwise as before. llmsTxt times repos and render, and the body and content type are unchanged. test/llms-txt-timing.test.ts checks both phase names and that the private repository stays out of the listing.

I merged main rather than rebasing because force pushes are refused here.

Closes #5376

The full gate on land was red; the pull is open again. Red tests:

• the gate audit before any shard > a new file is in the gate with no list naming it, and explicit files are not audited
• the gate audit before any shard > a new file is in the gate with no list naming it, and explicit files are not audited [73.81ms] [shard 103]

Red on top of #5535, #5536, #5543, #5541, which landed first from the same merge-queue candidate: red on its own on that base, or only together with them. Bring this pull up to date with the base and push.