Normalize OpenLoops storage-kit snapshot

[andrei-hasna]

Summary

• Normalize OpenLoops generated storage-kit to machine-level @hasna/contracts vendor-kit 0.5.1 output.
• Carry docs/SHARED_KIT_EXTRACTION_INVENTORY.md from completed dependency task 8fd378e0.
• Remove invalid package metadata drift from the existing branch so package.json and bun.lock do not change versus main.

Validation

• git diff --check
• git diff --cached --check
• contracts vendor-kit --check (contracts 0.5.1)
• bun run typecheck
• bun run test:boundary
• bun test src/lib/storage/postgres.test.ts src/lib/storage/postgres-loop-storage.test.ts src/lib/storage/postgres-concurrency.test.ts (8 pass, 16 skip live Postgres)
• staged credential-pattern scan

Notes

• bunx @hasna/contracts resolves to installed published @hasna/contracts 0.4.1 after install and fails against the vendored 0.5.1 kit. npm registry currently lists @hasna/contracts versions through 0.4.2, while the machine-level contracts CLI is 0.5.1.
• No package publish, Bun release-age exclusion edit, or sibling consumer migration is included.

Task: 2b166a36-1e7c-4882-be7f-610c4f478d39