[BOUNTY ] Add GET /hello endpoint returning { ok: true }

[lequangsang01]

Summary

• Adds GET /hello route at app root that responds with HTTP 200 and { "ok": true }
• Adds dedicated app-level test verifying the endpoint
• Properly scoped at /hello (not /api/hello) per the bounty specification

Acceptance Criteria

• Route responds 200
• JSON body is { "ok": true }
• PR references this issue

Changes

apps/api/src/app.ts:

• Added GET /hello route handler returning { ok: true } at the app root level

apps/api/src/app.test.ts:

• Added new test file with test case verifying GET /hello returns { ok: true } with status 200

apps/api/src/routes/api.ts:

• Removed the previously misplaced /hello route (was at /api/hello)

apps/api/src/routes/api.test.ts:

• Removed the /api/hello test (moved to app.test.ts)

Closes #118
Closes #120

/claim