refactor: share daemon HTTP contract helpers

[thymikee]

Summary

Share daemon HTTP base-path URL and auth-header helpers across proxy, remote daemon client transport, uploads, and artifact downloads.

Keep proxy/connect orchestration separate; only the low-level daemon HTTP contract moved behind focused helpers.

Validation

Focused daemon HTTP/proxy/client/upload tests passed, TypeScript passed, unit tests passed, and smoke tests passed.

Commands run:

• ./node_modules/.bin/vitest run src/daemon/tests/http-contract.test.ts src/tests/daemon-proxy.test.ts src/utils/tests/daemon-client.test.ts src/tests/upload-client.test.ts
• ./node_modules/.bin/tsc -p tsconfig.json --noEmit
• ./node_modules/.bin/vitest run --project unit
• node --test test/integration/smoke-*.test.ts

pnpm check:unit did not reach project scripts because pnpm 11.1.2 signature verification failed before execution, so I ran the equivalent unit and smoke commands directly.

[github-actions]

Size Report

Metric	Base	Current	Diff
JS raw	1.3 MB	1.3 MB	-7 B
JS gzip	431.1 kB	431.1 kB	+90 B
npm tarball	565.7 kB	565.8 kB	+101 B
npm unpacked	1.9 MB	1.9 MB	-7 B

Startup median (7 runs, lower is better):

Scenario	Base	Current	Diff
CLI --version	27.1 ms	27.5 ms	+0.4 ms
CLI --help	45.2 ms	45.1 ms	-0.0 ms

Top changed chunks:

Chunk	Raw diff	Gzip diff
dist/src/9919.js	-46 B	+59 B
dist/src/cli.js	+39 B	+31 B

[thymikee]

#846 is merge-ready from review. I checked the daemon HTTP helper refactor against proxy, remote client transport, upload, and artifact download paths; all required checks are green, and there are no findings.

Residual risk is low and limited to unusual daemon base URLs with query/hash components, which were not an existing documented contract.

[github-actions]

PR Preview Action v1.8.1
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2026-06-23 16:16 UTC