feat(card-service, pos-service): updating payment routes with new payload

[mkurapov]

Changes proposed in this pull request

After discussions in #kernel-implementation, we have finalized the POS Service /payment request that the POS will call.

• Updated POS Service POST /payment request body to be:

{
  "signature": "", // hex string (GEN AC result)
  "payload": "", // hex string (GEN AC payload)
  "amount": { "value:": "100", "assetScale": 2, "assetCode": "EUR"},
  "senderWalletAddress": "https://example.com/alice",
  "receiverWalletAddress": "https://example.com/bob",
  "timestamp": 1758105181325
}

• as a result, the Card Service POST /payment request body was updated to:

{   
  "requestId": "",
  "signature": "",
  "payload": "",
  "amount": { "value:": "100", "assetScale": 2, "assetCode": "EUR"},
  "timestamp": 1758105181325 
  "senderWalletAddress": "https://example.com/alice",
  "incomingPaymentUrl": "https://example.com/incoming-payment/39393"
}

Context

Checklist

Fixes #3650 | RAF-1166

• Related issues linked using fixes #number
• Tests added/updated
• Make sure that all checks pass
• Bruno collection updated (if necessary)
• Documentation issue created with user-docs label (if necessary)
• OpenAPI specs updated (if necessary)

[mkurapov]

updating the docker compose file so that the webhooks between backend <> POS service are signed and correctly validated

[mkurapov]

So BigInt is properly coerced before we pass it into the GraphQL requests

[github-actions]

🚀 Performance Test Results

Test Configuration:

• VUs: 4
• Duration: 1m0s

Test Metrics:

• Requests/s: 40.10
• Iterations/s: 13.40
• Failed Requests: 0.00% (0 of 2413)

📜 Logs

> [email protected] run-tests:testenv /home/runner/work/rafiki/rafiki/test/performance
> ./scripts/run-tests.sh -e test "-k" "-q" "--vus" "4" "--duration" "1m"

Cloud Nine GraphQL API is up: http://localhost:3101/graphql
Cloud Nine Wallet Address is up: http://localhost:3100/
Happy Life Bank Address is up: http://localhost:4100/
cloud-nine-wallet-test-backend already set
cloud-nine-wallet-test-auth already set
happy-life-bank-test-backend already set
happy-life-bank-test-auth already set
     data_received..................: 871 kB 15 kB/s
     data_sent......................: 1.9 MB 31 kB/s
     http_req_blocked...............: avg=6.98µs   min=2.36µs   med=5.48µs   max=827.25µs p(90)=6.56µs   p(95)=7.14µs  
     http_req_connecting............: avg=691ns    min=0s       med=0s       max=742.58µs p(90)=0s       p(95)=0s      
     http_req_duration..............: avg=99.1ms   min=13.55ms  med=79.31ms  max=915.64ms p(90)=173.06ms p(95)=190.77ms
       { expected_response:true }...: avg=99.1ms   min=13.55ms  med=79.31ms  max=915.64ms p(90)=173.06ms p(95)=190.77ms
     http_req_failed................: 0.00%  ✓ 0         ✗ 2413
     http_req_receiving.............: avg=91.54µs  min=23.15µs  med=79.97µs  max=2.61ms   p(90)=115.02µs p(95)=146.95µs
     http_req_sending...............: avg=37.82µs  min=11.3µs   med=28.99µs  max=3.07ms   p(90)=42.08µs  p(95)=58.94µs 
     http_req_tls_handshaking.......: avg=0s       min=0s       med=0s       max=0s       p(90)=0s       p(95)=0s      
     http_req_waiting...............: avg=98.97ms  min=13.31ms  med=79.18ms  max=915.56ms p(90)=172.94ms p(95)=190.67ms
     http_reqs......................: 2413   40.103399/s
     iteration_duration.............: avg=298.33ms min=201.41ms med=284.74ms max=1.06s    p(90)=353.09ms p(95)=381.84ms
     iterations.....................: 806    13.395499/s
     vus............................: 4      min=4       max=4 
     vus_max........................: 4      min=4       max=4 

[oana-lolea]

LGTM