fix: support reusable templates in remote CLI

[andrei-hasna]

Summary

• add authenticated create/list/read/delete contract for self-hosted Todos
• persist ordered checklist steps in the remote Postgres adapter
• route create/list and through cloud HTTP with no SQLite fallback

Validation

• bun test v1.3.14 (0d9b296a)

• Bundled 229 modules in 32ms

  index.js 3.0 MB (entry point)

Bundled 157 modules in 23ms

index.js 1.93 MB (entry point)

Bundled 496 modules in 38ms

index.js 3.43 MB (entry point)

Bundled 6 modules in 5ms

index.js 24.95 KB (entry point)

Bundled 193 modules in 25ms

index.js 1.85 MB (entry point)
registry.js 0.86 MB (entry point)
contracts.js 0.86 MB (entry point)
mcp.js 19.69 KB (entry point)
storage.js 0.58 MB (entry point)

• staged and commit-range gitleaks scans passed

No deployment or production data mutation was performed.