ci: dockerise l'API + connexion DB et CORS configurables par env

- config.py: connexion SQL via DB_* (driver 18, auth SQL), fallback Windows local
- main.py: origines CORS via CORS_ORIGINS
- Dockerfile (python 3.12 + msodbcsql18) + workflow Gitea Actions (build/push image)

Dockerfile

@@ -0,0 +1,21 @@
+# API Data Sentinel — FastAPI + pyodbc (ODBC Driver 18 pour SQL Server).
+FROM python:3.12-slim
+
+# Pilote Microsoft ODBC 18 (le 17 n'est plus packagé sur Debian 12 / bookworm).
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        curl gnupg ca-certificates apt-transport-https \
+ && curl -sSL https://packages.microsoft.com/keys/microsoft.asc \
+        | gpg --dearmor -o /usr/share/keyrings/microsoft-prod.gpg \
+ && echo "deb [arch=amd64,arm64 signed-by=/usr/share/keyrings/microsoft-prod.gpg] https://packages.microsoft.com/debian/12/prod bookworm main" \
+        > /etc/apt/sources.list.d/mssql-release.list \
+ && apt-get update \
+ && ACCEPT_EULA=Y apt-get install -y msodbcsql18 unixodbc-dev \
+ && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+
+EXPOSE 8000
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]