feat(integrations): setup integrations service structure

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

services/integrations/app/__init__.py

@@ -0,0 +1 @@
+# Integrations Service

services/integrations/app/config.py

@@ -0,0 +1,22 @@
+from pydantic_settings import BaseSettings
+from functools import lru_cache
+
+
+class Settings(BaseSettings):
+    # Odoo Connection
+    ODOO_URL: str = ""
+    ODOO_DB: str = ""
+    ODOO_USER: str = ""
+    ODOO_API_KEY: str = ""
+
+    # Internal Services
+    API_GATEWAY_URL: str = "http://localhost:8000"
+    FLOW_ENGINE_URL: str = "http://localhost:8001"
+
+    class Config:
+        env_file = ".env"
+
+
+@lru_cache
+def get_settings() -> Settings:
+    return Settings()

services/integrations/app/main.py

@@ -0,0 +1,17 @@
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+app = FastAPI(title="WhatsApp Central - Integrations Service")
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+
+@app.get("/health")
+def health_check():
+    return {"status": "healthy", "service": "integrations"}