Stage static web artifacts

[Photon101]

Summary

• copy the configured prebuilt static site into the sh1pt output directory during build
• write a web-static-manifest.json with provider, project/domain, source, artifact, version, and file list
• return file-count/manifest metadata from build and provider/artifact metadata from ship
• add focused tests for staging, manifest output, dry-run ship metadata, real ship metadata, and missing directories

Validation

• corepack pnpm exec vitest run packages/targets/web-static/src/index.test.ts
• corepack pnpm exec tsc -p packages/targets/web-static/tsconfig.json --noEmit
• corepack pnpm --filter @profullstack/sh1pt-target-web-static build
• git diff --check