feat: enhance configuration for database and Redis integration in Docker setup

app/core/config.py

@@ -11,9 +11,15 @@ class Settings(BaseSettings):
     project_name: str = "Test Task CRM"
     version: str = "0.1.0"
     api_v1_prefix: str = "/api/v1"
-    database_url: str = Field(
-        default="postgresql+asyncpg://postgres:postgres@0.0.0.0:5432/test_task_crm",
-        description="SQLAlchemy async connection string",
+    db_host: str = Field(default="localhost", description="Database hostname")
+    db_port: int = Field(default=5432, description="Database port")
+    db_name: str = Field(default="test_task_crm", description="Database name")
+    db_user: str = Field(default="postgres", description="Database user")
+    db_password: SecretStr = Field(default=SecretStr("postgres"), description="Database user password")
+    database_url_override: str | None = Field(
+        default=None,
+        alias="DATABASE_URL",
+        description="Optional full SQLAlchemy URL override",
     )
     sqlalchemy_echo: bool = False
     jwt_secret_key: SecretStr = Field(default=SecretStr("change-me"))
@@ -29,5 +35,15 @@ class Settings(BaseSettings):
         description="Maximum backoff (ms) for retrying cache writes/invalidation",
     )
 
+    @property
+    def database_url(self) -> str:
+        if self.database_url_override:
+            return self.database_url_override
+        password = self.db_password.get_secret_value()
+        return (
+            f"postgresql+asyncpg://{self.db_user}:{password}@"
+            f"{self.db_host}:{self.db_port}/{self.db_name}"
+        )
+
 
 settings = Settings()