feat: add version updater and statistics enhancements (fixes #29)

- Implemented version checking system with update notifications
- Integrated Git for fetching and downloading the latest version
- Added statistics updates
- Removed unused code across the project
- Condensed project structure
- Updated README
- Cleaned up UI

TUI/Screens/quietagentworkflowscreen.py

@@ -38,9 +38,9 @@ from textual.widgets import Button, DataTable, Footer, Header, Input, Static
 
 from models.policy import Policy
 from services.API import AirlockAPIWrapper
-from services.policyhandler import getPolicyInfo
 from TUI.Widgets.policyselector import PolicySelector
 from utils.configmanager import load_env
+from utils.executionfetcher import getExecutions
 
 logger = logging.getLogger(__name__)
 
@@ -429,7 +429,7 @@ class QuietAgentWorkflowScreen(Screen):
                 return
 
             # Get execution history (this shows progress bars in terminal via airlock_libs)
-            policy_exec_history = getPolicyInfo(
+            policy_exec_history = getExecutions(
                 self.api, self.selected_policy, [1, 2, 6, 7], self.history_days
             )