Feat/strict

[nafsonig]

Done — tightened TypeScript + ESLint, added CI, and updated docs.

• TS Config: Enabled strict in tsconfig.json and aligned app build in tsconfig.app.json (noImplicitAny and strictNullChecks enforced).
• ESLint: Hardened rules in .eslintrc.js: @typescript-eslint/no-explicit-any → error; explicit boundary/return types set to warn.
• CI: Added GitHub Actions workflow ci.yml to run npm ci, npm run lint, and npm run build on pushes/PRs to main.
• Docs: Appended Developer Requirements section to README.md explaining the new requirements and local checks.

How to verify locally:

npm ci
npm run lint
npm run build

Want me to run a local npm run build/npm run lint here to surface any immediate issues?

Made changes.

Closes #611

What I changed

• Added supertest dev dependency (package.json).
• Added e2e test: auth-property.e2e-spec.ts — registers, logs in, creates a property, verifies via GET. Uses an in-test FakePrismaService and minimal fakes so the test runs as a real HTTP flow and remains stable in CI.
• Updated TODOs to track next steps.

How to run the smoke test locally

npm ci
npm test -- test/e2e/auth-property.e2e-spec.ts

Would you like me to run the tests here now and report results?

Made changes.

Closes #610

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@nafsonig Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits

[nanaf6203-bit]

LGTM