feat: Complete Policy Prep Workflow with UX upgrades, Liftoff API, and TUI merge

- Added intro screen with workflow overview, time estimate, and onboarding controls
- Improved visuals: cleaner checkboxes (/), better loading screen layout
- Enforced mandatory tab reviews for critical steps with warnings and blocked navigation
- Optimized logging: INFO for milestones, DEBUG for internals; cleaner production logs
- Implemented Liftoff API integration: paths, publishers, hashes with granular error handling
- Color-coded completion feedback ( success,  failure,  partial) and detailed summaries
- Consolidated architecture: merged TUI.py into Loxide.py (single entry point, no circular imports)
- Fixed race condition in table creation with concurrency locks

requirements.txt

@@ -1,14 +1,26 @@
+# Core TUI dependencies
+textual==6.5.0
+
+# API and data handling
+Requests==2.32.5
+pandas==2.3.3
+numpy==2.3.4
+
+# Database
+pymongo==4.15.3
+
+# Security and encryption
 cryptography==46.0.3
 keyring==25.6.0
-numpy==2.3.4
-pandas==2.3.3
-pymongo==4.15.3
+
+# Environment management
 python-dotenv==1.2.1
-Requests==2.32.5
-textual==6.5.0
+
+# Utilities
 tqdm==4.67.1
 urllib3==2.5.0
 pyperclip==1.11.0
 
+# Custom/Private packages
 --extra-index-url https://git.racooncity.org/api/packages/brotoskyj/pypi/simple/
 airlock_libs==6.0.0