Refactor authentication and session management

- Removed old llm_login and session scripts, replacing them with a new structure for handling SSO login and session management.
- Introduced a new prompt system for collecting SSO redirect URLs, ensuring compliance with security protocols.
- Implemented a robust backend notification system for tracking scan initiation.
- Enhanced browser profile configuration and resource management for improved session handling.
- Added utility functions for environment variable checks and logging.
- Updated the overall architecture to improve maintainability and readability.

lib/utils/__init__.py

@@ -0,0 +1,40 @@
+from lib.utils.config import (
+    BACKEND_URL,
+    GOOGLE_API_KEY,
+    GOOGLE_MODEL,
+    GOOGLE_PLANNER_MODEL,
+)
+
+
+def show_info():
+    print("🔧 환경 설정:")
+    print(browser_use_version())
+    print(f"🔗 Backend URL: {BACKEND_URL}")
+    print(
+        f"🔑 Google API Key: {'*' * (len(GOOGLE_API_KEY) - 4) + GOOGLE_API_KEY[-4:] if GOOGLE_API_KEY else None}"
+    )
+    print(f"🌐 Google Model: {GOOGLE_MODEL}")
+    print(f"🌐 Google Planner Model: {GOOGLE_PLANNER_MODEL}")
+
+
+def browser_use_version():
+    try:
+        # run uv pip show browser-use
+        import subprocess
+
+        result = subprocess.run(
+            ["uv", "pip", "show", "browser-use"],
+            capture_output=True,
+            text=True,
+            check=True,
+        )
+
+        print("📦 Browser Use 패키지 정보:")
+        return result.stdout.strip()
+    except ImportError:
+        return None
+
+
+def env_cheker():
+    if GOOGLE_API_KEY is None:
+        raise ValueError("GOOGLE_API_KEY 환경변수가 설정되지 않았습니다.")