Fix desktop startup by packaging built-in Service resources

[cxxxxxn (cxxxxxn)]

Summary

Fix packaged desktop startup failing with Server process exited before becoming ready (code=1, signal=null) because bundled Service resources were missing from the installer.

• Copy dist-bundle/services into resources/server/services alongside the server bundle.
• Exclude *.test.* source files while preserving Service manifests, skills, and runtime entry files.
• Add an isolated bundle regression test covering the resource mapping, test-source exclusion, and content hashes for every loaded Service package.
• Document the desktop Service packaging contract.

Root cause

The server build already copies Service resources, but electron-builder did not include them. During startup, the Service loader falls back to the source layout and throws ENOENT for services/image-gen/service.yaml, terminating the server before readiness.

Validation

• pnpm typecheck
• pnpm format (no additional changes)
• pnpm lint:fix (0 errors, 330 warnings; no additional changes)
• Bundle runtime and Service loader tests: 6 passed
• Build a local Windows NSIS installer; extract its payload and launch the packaged executable with isolated user data. Verify a visible setup window, HTTP 200 readiness with no issues, and all four Services loaded. The app remained alive for the additional 10-second observation and was then shut down.
• After adding test-source exclusions, package again with electron-builder and verify all 8 runtime resource files match the source byte-for-byte, with no test files shipped.

The installer smoke test used an unsigned local build. The Windows install wizard, existing-user-data upgrade, macOS/Linux startup, and ESRP signing were not exercised. Signing configuration and credential handling are unchanged.

[Copilot]

🟢 Approval recommended

The focused packaging fix matches loader expectations and includes regression coverage; reported validation was not independently rerun.

No open issues 🎉

What changed in this PR

Fixes packaged desktop startup by including the built-in Service resources required during server initialization.

Changes:

• Packages Service resources while excluding test source files.
• Adds isolated loading and content-hash regression coverage.
• Documents the desktop Service packaging contract.

File	Description
docs/​architecture/​service-packages.md	Documents resource layout and startup requirements.
apps/​server/​src/​bundle.test.ts	Tests resource mapping, exclusions, and isolated Service loading.
apps/​desktop/​electron-builder.yml	Includes Service resources in desktop packages.

_{Review effort: Balanced}