Initial project scaffold

Full-stack homeschool web app with FastAPI backend, Vue 3 frontend,
MySQL database, and Docker Compose orchestration. Includes JWT auth,
WebSocket real-time TV dashboard, schedule builder, activity logging,
and multi-child support.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/config.py

@@ -0,0 +1,23 @@
+from pydantic_settings import BaseSettings
+from functools import lru_cache
+
+
+class Settings(BaseSettings):
+    database_url: str
+    secret_key: str
+    algorithm: str = "HS256"
+    access_token_expire_minutes: int = 30
+    refresh_token_expire_days: int = 30
+    cors_origins: str = "http://localhost:8054"
+
+    @property
+    def cors_origins_list(self) -> list[str]:
+        return [o.strip() for o in self.cors_origins.split(",")]
+
+    class Config:
+        env_file = ".env"
+
+
+@lru_cache
+def get_settings() -> Settings:
+    return Settings()