feat(node): scaffold @jongodb/memory-server package (#107)

[midagedev]

Summary

• add Node workspace root config for package-based tooling
• scaffold @jongodb/memory-server with typed API placeholder
• add package-local TypeScript build/typecheck/test scripts and a scaffold test

Validation

• npm run node:build
• npm run node:typecheck
• npm run node:test

Issue

Closes #107
Part of #106

[midagedev]

Review note: add a root Node workspace README section so contributors know this package is scaffold-only and that runtime implementation is tracked in #108; also include package to improve npm discoverability at publication time.

[midagedev]

Follow-up review clarification: please add npm package keywords metadata to packages/memory-server/package.json for discoverability and future registry page quality.

[midagedev]

Applied follow-up patch for review notes:\n- added npm in \n- added root README Node adapter status section\n- re-ran

node:test
npm run --workspace @jongodb/memory-server test

@jongodb/memory-server@0.0.0-development pretest
npm run build

@jongodb/memory-server@0.0.0-development build
tsc -p tsconfig.json

@jongodb/memory-server@0.0.0-development test
node --test dist/test/*.test.js

TAP version 13

Subtest: startJongodbMemoryServer is scaffolded and explicitly not implemented

ok 1 - startJongodbMemoryServer is scaffolded and explicitly not implemented

duration_ms: 0.64675
...
1..1

tests 1

suites 0

pass 1

fail 0

cancelled 0

skipped 0

todo 0

duration_ms 49.322334 (pass)

[midagedev]

Follow-up patch applied for review notes:

• added npm keywords metadata in packages/memory-server/package.json
• added root README Node adapter status section
• re-ran npm run node:test (pass)