Initial scaffold: FastAPI micro-service with Docker, SQLite, tests

app/config.py

@@ -0,0 +1,15 @@
+"""Application configuration — env-driven, zero secrets hardcoded."""
+
+import os
+
+
+class Settings:
+    APP_NAME: str = "micro-api"
+    VERSION: str = "0.1.0"
+    DEBUG: bool = os.getenv("DEBUG", "false").lower() == "true"
+    DATABASE_URL: str = os.getenv("DATABASE_URL", "sqlite:///data/app.db")
+    HOST: str = os.getenv("HOST", "0.0.0.0")
+    PORT: int = int(os.getenv("PORT", "8000"))
+
+
+settings = Settings()