```

chore: remove obsolete payment architecture and integration test documentation

- Remove AITBC_PAYMENT_ARCHITECTURE.md (dual-currency system documentation)
- Remove IMPLEMENTATION_COMPLETE_SUMMARY.md (integration test completion summary)
- Remove INTEGRATION_TEST_FIXES.md (test fixes documentation)
- Remove INTEGRATION_TEST_UPDATES.md (real features implementation notes)
- Remove PAYMENT_INTEGRATION_COMPLETE.md (wallet-coordinator integration docs)
- Remove WALLET_COORDINATOR_INTEGRATION.md (payment

apps/coordinator-api/src/app/routers/client.py

@@ -1,8 +1,7 @@
 from fastapi import APIRouter, Depends, HTTPException, status
 
 from ..deps import require_client_key
-from ..schemas import JobCreate, JobView, JobResult
-from ..schemas.payments import JobPaymentCreate, PaymentMethod
+from ..schemas import JobCreate, JobView, JobResult, JobPaymentCreate
 from ..types import JobState
 from ..services import JobService
 from ..services.payments import PaymentService
@@ -27,11 +26,11 @@ async def submit_job(
             job_id=job.id,
             amount=req.payment_amount,
             currency=req.payment_currency,
-            payment_method=PaymentMethod.AITBC_TOKEN  # Jobs use AITBC tokens
+            payment_method="aitbc_token"  # Jobs use AITBC tokens
         )
         payment = await payment_service.create_payment(job.id, payment_create)
         job.payment_id = payment.id
-        job.payment_status = payment.status.value
+        job.payment_status = payment.status
         session.commit()
         session.refresh(job)
     

apps/coordinator-api/src/app/routers/marketplace_offers.py

@@ -7,7 +7,7 @@ from fastapi import APIRouter, Depends, HTTPException
 from sqlmodel import Session, select
 
 from ..deps import require_admin_key
-from ..domain import MarketplaceOffer, Miner, OfferStatus
+from ..domain import MarketplaceOffer, Miner
 from ..schemas import MarketplaceOfferView
 from ..storage import SessionDep
 

apps/coordinator-api/src/app/routers/miner.py

@@ -1,5 +1,6 @@
 from datetime import datetime
 from typing import Any
+import logging
 
 from fastapi import APIRouter, Depends, HTTPException, Response, status
 
@@ -9,6 +10,8 @@ from ..services import JobService, MinerService
 from ..services.receipts import ReceiptService
 from ..storage import SessionDep
 
+logger = logging.getLogger(__name__)
+
 router = APIRouter(tags=["miner"])
 
 
@@ -78,6 +81,23 @@ async def submit_result(
     job.receipt_id = receipt["receipt_id"] if receipt else None
     session.add(job)
     session.commit()
+    
+    # Auto-release payment if job has payment
+    if job.payment_id and job.payment_status == "escrowed":
+        from ..services.payments import PaymentService
+        payment_service = PaymentService(session)
+        success = await payment_service.release_payment(
+            job.id,
+            job.payment_id,
+            reason="Job completed successfully"
+        )
+        if success:
+            job.payment_status = "released"
+            session.commit()
+            logger.info(f"Auto-released payment {job.payment_id} for completed job {job.id}")
+        else:
+            logger.error(f"Failed to auto-release payment {job.payment_id} for job {job.id}")
+    
     miner_service.release(
         miner_id,
         success=True,
@@ -106,5 +126,22 @@ async def submit_failure(
     job.assigned_miner_id = miner_id
     session.add(job)
     session.commit()
+    
+    # Auto-refund payment if job has payment
+    if job.payment_id and job.payment_status in ["pending", "escrowed"]:
+        from ..services.payments import PaymentService
+        payment_service = PaymentService(session)
+        success = await payment_service.refund_payment(
+            job.id,
+            job.payment_id,
+            reason=f"Job failed: {req.error_code}: {req.error_message}"
+        )
+        if success:
+            job.payment_status = "refunded"
+            session.commit()
+            logger.info(f"Auto-refunded payment {job.payment_id} for failed job {job.id}")
+        else:
+            logger.error(f"Failed to auto-refund payment {job.payment_id} for job {job.id}")
+    
     miner_service.release(miner_id, success=False)
     return {"status": "ok"}

apps/coordinator-api/src/app/routers/partners.py

@@ -37,7 +37,7 @@ class PartnerResponse(BaseModel):
 class WebhookCreate(BaseModel):
     """Create a webhook subscription"""
     url: str = Field(..., pattern=r'^https?://')
-    events: List[str] = Field(..., min_items=1)
+    events: List[str] = Field(..., min_length=1)
     secret: Optional[str] = Field(max_length=100)
 
 

apps/coordinator-api/src/app/routers/payments.py

@@ -4,7 +4,7 @@ from fastapi import APIRouter, Depends, HTTPException, status
 from typing import List
 
 from ..deps import require_client_key
-from ..schemas.payments import (
+from ..schemas import (
     JobPaymentCreate,
     JobPaymentView,
     PaymentRequest,