Run Standard scans with focused investigators

[ianw-oai]

Summary

• Run one independent audit and focused investigations in each Standard scan.
• Keep the SDK scan ID, output directory, progress, and completion under SDK control.
• Resolve requested paths without ranking and respect repository ignore rules.
• Keep desktop and headless scan instructions separate.
• Preserve existing public scan recovery and finding-format fixes.

Validation

• bun test --timeout 30000 ./tests-ts: 956 passed; 11 expected platform or integration skips.
• pnpm run types
• pnpm run format
• pnpm run build
• The packed package passed installation, public import, CLI, nested-worker, and bundled-file checks.