Major cleanup and optimization: Remove unused dependencies, clean build artifacts, and improve project structure

- Remove 7 unused dependencies: apt-pkg-native, pkg-config, walkdir, lazy_static, futures, async-trait, cap-std
- Delete dead code: Remove unused parallel.rs module
- Clean build artifacts: Remove debian/cargo/, debian/.debhelper/, and other build files
- Update .gitignore: Comprehensive patterns for build artifacts, test files, and temporary files
- Move documentation: Relocate project docs to docs/ directory
- Remove test artifacts: Clean up test files and package archives
- Update Cargo.toml: Streamline dependencies and remove unused features
- Verify build: Ensure project still compiles after cleanup

This commit significantly reduces project size and improves build efficiency.

clear-changelog.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Clear the changelog file after git commit
+# Usage: ./clear-changelog.sh
+
+echo "Clearing changelog..."
+
+# Clear the changelog content but keep the structure
+cat > CHANGELOG.md << 'EOF'
+# Changelog
+
+This file tracks changes made during development sessions. After each git commit, this file is cleared to start fresh.
+
+## Current Session Changes
+
+### Commands Enhanced
+- 
+
+### Features Added
+- 
+
+### Technical Improvements
+- 
+
+### Files Modified
+- 
+
+## Usage
+
+1. **During Development**: Add brief notes about changes made
+2. **Before Commit**: Review changes and format for commit message
+3. **After Commit**: Clear this file to start fresh for next session
+
+## Commit Message Format
+
+Use the following format for commit messages:
+
+```
+feat: brief description of changes
+
+- Key change 1
+- Key change 2
+- Key change 3
+
+Files: file1.rs, file2.rs
+```
+EOF
+
+echo "Changelog cleared successfully!"
+echo "Ready for next development session."