refactored: to utilise the google adk and production grade agent

app/config.py

@@ -31,11 +31,39 @@ class Settings(BaseSettings):
     AZURE_OPENAI_API_VERSION: str = "2024-02-15-preview"
     LLM_TEMPERATURE: float = 0.2
 
+    # Google Cloud Environment & Scanner Credentials
+    GOOGLE_APPLICATION_CREDENTIALS: str | None = None
+    GCP_PROJECT_ID: str | None = None
+    GCP_REGION: str = "us-central1"
+
+    # Database & Storage Settings (External PostgreSQL)
+    POSTGRES_HOST: str = "localhost"
+    POSTGRES_PORT: int = 5432
+    POSTGRES_DB: str = "gcp_agent_db"
+    POSTGRES_USER: str = "postgres"
+    POSTGRES_PASSWORD: str = "postgres"
+    DATABASE_URL: str | None = None
+    SQLITE_FALLBACK_DB: str = "gcp_agent_local.db"
+
+    # ADK Multi-Agent Orchestrator Settings
+    ADK_MAX_LOOP_ITERATIONS: int = 5
+    ADK_ENABLE_ARTIFACT_STORE: bool = True
+
+    # Google Developer Knowledge MCP Server Settings
+    DEVELOPER_KNOWLEDGE_MCP_URL: str = "https://developerknowledge.googleapis.com/mcp"
+    DEVELOPER_KNOWLEDGE_MCP_ENABLED: bool = True
+
     # Paths
     BASE_DIR: Path = Path(__file__).resolve().parent.parent
     SKILLS_DIR: Path = Path(__file__).resolve().parent / "skills"
     EVAL_DATASET_PATH: Path = Path(__file__).resolve().parent.parent / "eval" / "datasets" / "benchmark_cases.json"
 
+    def get_database_url(self) -> str:
+        """Construct database connection URL (PostgreSQL or SQLite fallback)."""
+        if self.DATABASE_URL:
+            return self.DATABASE_URL
+        return f"postgresql://{self.POSTGRES_USER}:{self.POSTGRES_PASSWORD}@{self.POSTGRES_HOST}:{self.POSTGRES_PORT}/{self.POSTGRES_DB}"
+
 
 _settings: Settings | None = None