Restructure into full project layout

backend/app/core/config.py

@@ -0,0 +1,26 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    SECRET_KEY: str
+    ALGORITHM: str = "HS256"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60
+    REFRESH_TOKEN_EXPIRE_DAYS: int = 30
+
+    ANTHROPIC_API_KEY: str
+    ANTHROPIC_MODEL: str = "claude-sonnet-4-6"
+
+    ADMIN_EMAIL: str
+    ADMIN_PASSWORD: str
+
+    DATABASE_URL: str
+    REDIS_URL: str = "redis://cache:6379"
+
+    SCRYFALL_RATE_LIMIT_RPS: int = 8
+    SCRYFALL_CACHE_TTL_SECONDS: int = 86400
+
+    class Config:
+        env_file = ".env"
+
+
+settings = Settings()