feat: add semantic web provider seam

[thymikee]

Summary

Adds the semantic web provider seam for the first web automation slice, wires request-scoped provider resolution for platform web, and routes web dispatch through a provider-backed interactor.

Closes #819

Validation

Verified with typecheck, focused provider/interactor tests, and formatting using the local pnpm binary.

[github-actions]

Size Report

Metric	Base	Current	Diff
JS raw	1.3 MB	1.3 MB	+2.0 kB
JS gzip	416.2 kB	417.1 kB	+954 B
npm tarball	551.0 kB	551.8 kB	+792 B
npm unpacked	1.9 MB	1.9 MB	+2.0 kB

Startup median (7 runs, lower is better):

Scenario	Base	Current	Diff
CLI --version	28.5 ms	26.6 ms	-1.9 ms
CLI --help	48.7 ms	44.5 ms	-4.2 ms

Top changed chunks:

Chunk	Raw diff	Gzip diff
dist/src/9722.js	+345 B	+83 B

[thymikee]

Found one blocking issue.

[P1] Wire the web provider through the request router. PlatformProviderResolvers now accepts webProvider and the descriptor installs withWebProvider, but RequestRouterDeps still has no webProvider field and createRequestHandler only forwards android/apple/linux/appLog/recording providers into withRequestPlatformProviderScope (src/daemon/request-router.ts:40, src/daemon/request-router.ts:130). As a result, real daemon requests and provider-scenario harnesses cannot supply the web provider; createWebInteractor() falls back to localWebProvider, so open/snapshot/click/fill/type/scroll on platform: web all return "Web automation requires a request-scoped web provider" even when a future adapter tries to inject one through the router. The new tests call withRequestPlatformProviderScope directly, so they do not catch this production-path gap. Please add webProvider?: WebProviderResolver to RequestRouterDeps, destructure/forward it in the provider set, and cover it with a request-router or provider-scenario test that proves a web open/snapshot reaches the injected provider through createRequestHandler.

Validation run locally: pnpm typecheck; pnpm exec vitest run src/daemon/__tests__/request-platform-providers.test.ts src/core/__tests__/web-interactor.test.ts; pnpm exec vitest run src/core/__tests__/dispatch-target.test.ts.

[github-actions]

PR Preview Action v1.8.1
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2026-06-19 10:26 UTC