docs: Add comprehensive documentation build system README

- Complete implementation summary of multi-format documentation system
- Detailed architecture overview and usage instructions
- Cleanup system documentation and CI/CD integration guide
- Technical implementation details and quality assurance metrics

Author: vinod0m

documentation-output/README.md

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+# Multi-Format Documentation Build System
+
+This directory contains the comprehensive documentation build system for the unstructuredDataHandler project, implementing all requested features:
+
+## 🎯 Implementation Summary
+
+### ✅ Completed Requirements
+
+1. **Temporary File Cleanup** - ✅ Implemented comprehensive cleanup system
+2. **Multi-Format Generation** - ✅ HTML, Markdown, and PDF documentation
+3. **CI/CD Integration** - ✅ Automated build pipeline with artifact upload to Git repository
+
+### 🏗️ Architecture Overview
+
+```
+Documentation Build System
+├── scripts/build-docs.sh           # Main build script (multi-format)
+├── .github/workflows/python-docs.yml # CI/CD pipeline
+├── doc/codeDocs/
+│   ├── conf.py                     # Enhanced Sphinx configuration
+│   ├── latex_config.py             # Professional PDF settings
+│   └── custom.css/js               # Modern UI styling
+└── documentation-output/           # Generated artifacts
+    ├── html/                       # Interactive HTML docs
+    ├── html-docs-*.tar.gz          # Packaged HTML
+    ├── markdown/                   # Markdown format docs
+    ├── markdown-docs-*.tar.gz      # Packaged Markdown
+    ├── *.pdf                       # Professional PDF
+    └── manifest.json               # Build metadata
+```
+
+### 🧹 Cleanup System
+
+**Automatic cleanup includes:**
+- `.dot` diagram source files
+- LaTeX build artifacts (`.aux`, `.log`, `.out`, `.toc`)
+- Python cache files (`__pycache__`, `.pyc`)
+- Sphinx doctrees
+- Temporary build directories
+
+### 📄 Multi-Format Documentation
+
+#### HTML Documentation
+- Modern Furo theme with custom styling
+- Interactive navigation and search
+- Embedded diagrams and code examples
+- Mobile-responsive design
+- Architecture diagrams and call trees
+
+#### Markdown Documentation
+- GitHub-compatible markdown
+- Cross-references and navigation
+- Comprehensive README with file index
+- Suitable for wikis and documentation sites
+
+#### PDF Documentation
+- Professional LaTeX-generated PDF
+- Custom styling and formatting
+- Embedded diagrams and images
+- Table of contents and index
+- Production-ready quality
+
+### 🚀 CI/CD Pipeline
+
+**Automated workflow includes:**
+- Multi-format documentation generation
+- Comprehensive cleanup and validation
+- Artifact packaging with version tagging
+- Upload to Git artifact repository
+- Build metadata and manifest generation
+
+### 📊 Build Features
+
+#### Comprehensive Build Script (`scripts/build-docs.sh`)
+```bash
+# Full build (all formats)
+./scripts/build-docs.sh
+
+# Format-specific builds
+./scripts/build-docs.sh --html-only
+./scripts/build-docs.sh --markdown-only
+./scripts/build-docs.sh --pdf-only
+./scripts/build-docs.sh --no-pdf
+
+# Development options
+./scripts/build-docs.sh --skip-cleanup
+```
+
+#### Features:
+- Dependency validation (Graphviz, Pandoc, LaTeX)
+- Progressive build with fallback options
+- Colored output and progress indicators
+- Comprehensive error handling
+- Version tagging and manifest generation
+
+### 📈 Enhanced Documentation
+
+**Generated content includes:**
+- Architecture diagrams (system overview)
+- Function call trees (per module)
+- Code complexity analysis
+- Enhanced module documentation
+- Cross-references and navigation
+- Professional styling and branding
+
+### 🔧 Technical Implementation
+
+#### Sphinx Configuration Enhancements
+- Multi-format output support (HTML, Markdown, LaTeX)
+- Custom LaTeX configuration for PDF
+- Warning suppression for clean builds
+- Enhanced themes and styling
+- Comprehensive cross-referencing
+
+#### CI/CD Workflow Improvements
+- Multi-format build pipeline
+- Automated cleanup and validation
+- Artifact packaging and upload
+- Build metadata generation
+- Comprehensive error handling
+
+### 📦 Artifact Structure
+
+```
+documentation-output/
+├── html/                           # Complete HTML documentation
+│   ├── index.html                  # Main entry point
+│   ├── _static/                    # Assets (CSS, JS, images)
+│   └── modules/                    # API documentation
+├── html-docs-YYYY.MM.DD-SHA.tar.gz # Packaged HTML
+├── markdown/                       # Markdown documentation
+│   ├── README.md                   # Navigation guide
+│   └── *.md                        # Module documentation
+├── markdown-docs-YYYY.MM.DD-SHA.tar.gz # Packaged Markdown
+├── unstructuredDataHandler-docs-YYYY.MM.DD-SHA.pdf # PDF documentation
+└── manifest.json                   # Build metadata
+```
+
+### 🎨 Modern UI Features
+
+#### HTML Documentation
+- Professional Furo theme
+- Custom branding and styling
+- Interactive navigation sidebar
+- Search functionality
+- Responsive design
+- Code syntax highlighting
+- Copy-to-clipboard buttons
+
+#### Enhanced Navigation
+- Hierarchical module organization
+- Cross-referenced API documentation
+- Architecture diagrams integration
+- Code complexity visualization
+- Interactive elements and tabs
+
+### 📋 Usage Instructions
+
+#### Local Development
+```bash
+# Install dependencies
+pip install -r requirements-dev.txt
+
+# Generate documentation
+./scripts/build-docs.sh
+
+# View HTML documentation
+open documentation-output/html/index.html
+```
+
+#### CI/CD Pipeline
+The documentation is automatically built and uploaded on every push to the repository. Artifacts are available in the GitHub Actions artifacts section.
+
+### 🏆 Quality Assurance
+
+**Validation includes:**
+- Sphinx build validation
+- Link checking and consistency
+- Image and diagram validation
+- PDF generation verification
+- Artifact integrity checking
+- Comprehensive error reporting
+
+### 📝 Manifest Information
+
+Each build generates a manifest with:
+- Build timestamp and version
+- Git commit information
+- Available formats and locations
+- Archive checksums
+- CI/CD metadata
+
+### 🔄 Continuous Integration
+
+The CI pipeline ensures:
+- Consistent documentation quality
+- Automatic updates on code changes
+- Multi-format availability
+- Artifact preservation
+- Build history and traceability
+
+---
+
+## 🎉 Success Metrics
+
+✅ **Cleanup System** - Comprehensive temp file removal  
+✅ **Multi-Format** - HTML, Markdown, PDF generation  
+✅ **CI/CD Integration** - Automated build and artifact upload  
+✅ **Professional Quality** - Modern UI, diagrams, comprehensive docs  
+✅ **Robust Architecture** - Error handling, validation, fallbacks  
+
+The documentation system now provides a complete, professional, multi-format documentation solution with comprehensive cleanup and CI/CD integration as requested.