Generate Scoop package manifests

[Gujiassh]

Summary

• replace the Scoop target placeholder build path with deterministic manifest generation
• support versioned URL templates, explicit URLs, hash normalization, bin entries, shortcuts, env_add_path, and architecture-specific downloads
• keep the existing dry-run ship behavior for bucket publishing

Validation

• npx vitest run packages/targets/pkg-scoop/src/index.test.ts
• isolated TypeScript check for packages/targets/pkg-scoop/src/index.ts
• git diff --check

Notes

• Full workspace pnpm install/typecheck is currently blocked by an unrelated existing workspace issue: packages/dns/azure depends on @sh1pt/core@workspace:* but the workspace package is named @profullstack/sh1pt-core.

[ralyodio]

@copilot resolve the merge conflicts in this pull request