[BOUNTY $50] Add GET /hello endpoint returning { ok: true }

[Yzgaming005]

Summary

Adds a public GET /hello endpoint for bot detection verification as specified in #120.

Changes

• apps/api/src/routes/api.ts — Added GET /hello route returning { "ok": true } with 200 status
• apps/api/src/routes/api.ts — Registered endpoint in apiEndpoints documentation array
• apps/api/src/routes/api.test.ts — Added test coverage verifying 200 status and exact JSON body

Acceptance Criteria

• Route responds with 200 status
• JSON body is { "ok": true }
• PR references issue [BOUNTY $50] Add a hello-world test endpoint to verify bot detection #120

Notes

• No authentication required (public endpoint, consistent with /ping)
• Follows existing code style and patterns in the routes file
• Test follows the same supertest pattern as other public endpoint tests

Closes #120

---

Payment: USDT (EVM) 0x683d2759cb626f536c842e8a3d943776198b8b8a · BTC 1CMv2KecNT8fqHPNkSaa7tgpzcfM5zVvaH · SOL GarrWeviAv8kmC9ftRkhax5kSYhhv2Py5FDv4X8bsvqg · XLM GABFQIK63R2NETJM7T673EAMZN4RJLLGP3OFUEJU5SZVTGWUKULZJNL6 (memo: 396193324) · PayPal ahmadyusrizal89@gmail.com