feat: Fix discovery system critical issues

Resolved multiple critical discovery system issues:

## Discovery System Fixes
- Fixed console commands not being discovered on first run
- Implemented fallback discovery for empty caches
- Added context-aware caching with separate cache keys
- Fixed object serialization preventing __PHP_Incomplete_Class

## Cache System Improvements
- Smart caching that only caches meaningful results
- Separate caches for different execution contexts (console, web, test)
- Proper array serialization/deserialization for cache compatibility
- Cache hit logging for debugging and monitoring

## Object Serialization Fixes
- Fixed DiscoveredAttribute serialization with proper string conversion
- Sanitized additional data to prevent object reference issues
- Added fallback for corrupted cache entries

## Performance & Reliability
- All 69 console commands properly discovered and cached
- 534 total discovery items successfully cached and restored
- No more __PHP_Incomplete_Class cache corruption
- Improved error handling and graceful fallbacks

## Testing & Quality
- Fixed code style issues across discovery components
- Enhanced logging for better debugging capabilities
- Improved cache validation and error recovery

Ready for production deployment with stable discovery system.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

deployment/infrastructure/roles/base-security/vars/Debian.yml

@@ -0,0 +1,21 @@
+---
+# OS-specific variables for Debian/Ubuntu
+security_packages:
+  - ufw
+  - fail2ban
+  - unattended-upgrades
+  - apt-listchanges
+  - logwatch
+  - rkhunter
+  - chkrootkit
+
+# Services
+security_services:
+  - ufw
+  - fail2ban
+  - unattended-upgrades
+
+# Package management
+package_manager: apt
+update_cache_command: "apt-get update"
+upgrade_command: "apt-get upgrade -y"