Add Docker build with Gitea Actions CI

- Add Dockerfile with Python 3.13 + uv
- Add Gitea Actions workflow for auto-build on push
- Add deposit_api.py for balance management
- Update api_server.py with domain registration endpoint

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

api_server.py

@@ -383,6 +383,7 @@ class DomainRegisterRequest(BaseModel):
     domain: str
     years: int = 1
     add_whois_guard: bool = True
+    telegram_id: Optional[str] = None  # 예치금 결제 시 필수
     # Registrant info (optional - uses default if not provided)
     first_name: Optional[str] = None
     last_name: Optional[str] = None
@@ -415,15 +416,55 @@ def get_default_registrant() -> RegistrantInfo:
 
 
 @app.post("/domains/register")
-def register_domain(req: DomainRegisterRequest):
+async def register_domain(req: DomainRegisterRequest):
     """
-    Register a new domain. WARNING: This will charge your account.
-    
-    If registrant info is not provided, uses default from environment.
+    Register a new domain with deposit balance check.
+
+    - telegram_id: Required for deposit payment
+    - Checks balance before registration
+    - Deducts from deposit after successful registration
     """
     from namecheap import NamecheapError
-    
-    # Use provided info or fall back to defaults
+    from deposit_api import get_balance, deduct_balance
+    from db import get_prices, init_db
+
+    # telegram_id 필수 체크
+    if not req.telegram_id:
+        raise HTTPException(
+            status_code=400,
+            detail="telegram_id is required for domain registration"
+        )
+
+    # 1. 도메인 가격 조회
+    init_db()
+    tld = req.domain.rsplit(".", 1)[-1] if "." in req.domain else req.domain
+    prices = get_prices()
+    price_info = next((p for p in prices if p["tld"] == tld), None)
+
+    if not price_info:
+        raise HTTPException(
+            status_code=400,
+            detail=f"TLD '{tld}' pricing not found"
+        )
+
+    price_krw = price_info["krw"] * req.years
+
+    # 2. 예치금 잔액 확인
+    balance_result = await get_balance(req.telegram_id)
+    if "error" in balance_result:
+        raise HTTPException(
+            status_code=400,
+            detail=f"잔액 조회 실패: {balance_result['error']}"
+        )
+
+    current_balance = balance_result.get("balance", 0)
+    if current_balance < price_krw:
+        raise HTTPException(
+            status_code=400,
+            detail=f"잔액 부족: 현재 {current_balance:,}원, 필요 {price_krw:,}원"
+        )
+
+    # 3. Registrant 정보 준비
     default = get_default_registrant()
     registrant = RegistrantInfo(
         first_name=req.first_name or default.first_name,
@@ -438,17 +479,18 @@ def register_domain(req: DomainRegisterRequest):
         phone=req.phone or default.phone,
         email=req.email or default.email,
     )
-    
-    # Validate required fields
-    required = ["first_name", "last_name", "address1", "city", "state_province", 
+
+    # 필수 필드 체크
+    required = ["first_name", "last_name", "address1", "city", "state_province",
                 "postal_code", "country", "phone", "email"]
     missing = [f for f in required if not getattr(registrant, f)]
     if missing:
         raise HTTPException(
-            status_code=400, 
-            detail=f"Missing required registrant fields: {', '.join(missing)}. Set DEFAULT_* env vars or provide in request."
+            status_code=400,
+            detail=f"Missing required registrant fields: {', '.join(missing)}. Set REGISTRANT_* env vars."
         )
-    
+
+    # 4. 도메인 등록
     try:
         result = api.domains_create(
             domain=req.domain,
@@ -456,10 +498,25 @@ def register_domain(req: DomainRegisterRequest):
             years=req.years,
             add_whois_guard=req.add_whois_guard,
         )
-        return result
     except NamecheapError as e:
         raise HTTPException(status_code=400, detail=str(e))
 
+    # 5. 등록 성공 시 예치금 차감
+    if result.get("registered"):
+        deduct_result = await deduct_balance(
+            telegram_id=req.telegram_id,
+            amount=price_krw,
+            reason=f"도메인 등록: {req.domain} ({req.years}년)"
+        )
+
+        if "error" in deduct_result:
+            # 차감 실패 시 경고 (도메인은 이미 등록됨)
+            result["warning"] = f"도메인은 등록되었으나 예치금 차감 실패: {deduct_result['error']}"
+        else:
+            result["deposit_deducted"] = price_krw
+            result["new_balance"] = deduct_result.get("new_balance", 0)
+
+    return result
 
 if __name__ == "__main__":
     import uvicorn