feat: added changelog

Author: matbmoser

CHANGELOG.md

@@ -0,0 +1,165 @@
+# Changelog
+
+All notable changes to the Eclipse Tractus-X KIT Documentation will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased] - 2025-11-07
+
+### Added
+
+#### KIT Analytics & Statistics System
+- **Complete KIT Analytics Dashboard** (`/src/components/2.0/KitAnalytics/`)
+  - Modular analytics component library with 11+ specialized components
+  - `StatCard`: Animated statistics cards with count-up animations
+  - `PieChart`: Interactive pie charts for maturity level distribution
+  - `DataspaceDistribution`: Horizontal bar chart for dataspace analysis
+  - `MaturityTimeline`: Timeline visualization with color legend for KIT progression
+  - `QuarterlyTrends`: Quarterly statistics showing year-by-year KIT growth
+  - `IncubatingKitsReview`: Review and progress statistics for in-development KITs
+  - `UpdateActivityChart`: Activity tracking for KIT updates
+  - `GraduatedKitsList`: Comprehensive list of graduated KITs with graduation dates
+  - `KitStatistics`: Main statistics overview component with navigation buttons
+  - Full responsive design with mobile optimization
+  - Dark mode compatibility across all components
+
+#### Navigation Enhancements
+- **Documentation Sidebar**
+  - Added "← Back to KIT Overview" link at the top of documentation section
+  - Improved navigation between KIT overview and documentation pages
+
+- **KIT Getting Started Guide** (`documentation/kit-getting-started.mdx`)
+  - Professional business card contact section with glass-morphism effects
+  - Three contact buttons: Email, GitHub, and Matrix chat
+  - Navigation buttons for KIT artifacts and master data
+  - Interactive process reference components
+  - Tractus-X gradient background styling
+
+- **KIT Footer Component** (`/src/components/2.0/KitsFooter/`)
+  - Six distinct navigation links with semantic Material-UI icons:
+    - Community Office Hours (Groups icon)
+    - KIT Matrix Chat (Chat icon)
+    - Learn KIT Artifacts (School icon)
+    - KIT Maturity Levels (TrendingUp icon)
+    - Create a KIT (Add icon)
+    - Contribute (Handshake icon)
+  - Attribution note linking to master data documentation
+
+- **KIT Architecture Component** (`/src/components/2.0/KitsArchitecture/`)
+  - Added functional "Explore the Architecture" button
+  - Proper centering with flex container solution
+  - Link to KIT artifacts documentation
+
+- **KIT Statistics Component** (`/src/components/2.0/KitStatistics/`)
+  - Added "KIT Maturity Levels" navigation button
+  - Three action buttons: Contribute, View More Statistics, KIT Maturity Levels
+
+#### Master Data & Graduation Tracking
+- **Graduation Date Integration**
+  - Added graduation date metadata to KIT cards
+  - Display graduation dates in `GraduatedKitsList` component
+  - Enhanced `KitCard` and `ExpandedKitCard` with graduation date display
+  - Graduation date shown on kit-master-data-overview page
+
+#### Component Architecture
+- **Modular Component System**
+  - Exported all analytics components to `/src/components/2.0/KitAnalytics/`
+  - Shared component architecture for reusability
+  - Individual component styling with CSS modules
+  - Proper Material-UI icon imports (individual imports vs. destructured)
+
+#### Documentation Improvements
+- **KIT Statistics Page** (`documentation/kit-statistics.mdx`)
+  - Converted to MDX format with interactive components
+  - Single-import simplified structure
+  - Apache License 2.0 compliance
+  - Data source attribution notes
+
+### Changed
+
+#### UI/UX Improvements
+- **Responsive Design**
+  - Mobile-first responsive patterns across all components
+  - Flexible grid layouts adapting to screen sizes
+  - Optimized touch targets for mobile devices
+  - Responsive typography and spacing
+
+- **Visual Styling**
+  - Dark mode compatibility for all new components
+  - Gradient backgrounds with Tractus-X branding
+  - Glass-morphism effects for modern UI appeal
+  - Button styling with hover effects and transitions
+  - Professional business card design with squared profile images
+  - Modern border styling for profile images
+
+- **Icon System**
+  - Migrated to individual Material-UI icon imports
+  - Semantic icon selection for better user experience
+  - Consistent icon sizing and styling
+  - Z-index optimization for proper layering
+
+#### Component Refactoring
+- **KitsFooter Component**
+  - Individual icon imports: `ChatIcon`, `GroupsIcon`, `AddIcon`, `RocketLaunchIcon`, `SchoolIcon`, `HandshakeIcon`, `TrendingUpIcon`
+  - Replaced duplicate icons with unique semantic alternatives
+  - Enhanced link organization and grouping
+
+- **KitStatistics Component**
+  - Individual icon imports: `BuildIcon`, `LanguageIcon`, `SchoolIcon`, `RocketIcon`, `AddIcon`, `AnalyticsIcon`, `TrendingUpIcon`
+  - Updated icon references for consistency
+
+- **Button Components**
+  - Full-width to content-based width transitions
+  - External link symbols for external navigation
+  - Gradient backgrounds with visual appeal
+  - Hover effect refinements (background visibility adjustments)
+
+### Fixed
+
+#### Build & Deployment
+- **Rspack Build Issues**
+  - Resolved module graph panic error
+  - Cleaned build cache (`.docusaurus`, `build`, `node_modules/.cache`)
+  - Successful compilation with Rspack 1.5.8
+
+- **Broken Links**
+  - Fixed `/documentation/kit-getting-started`:
+    - `docs/getting-started` → `/docs/getting-started`
+    - `./trg-9-02-kit-maturity-levels` → `./kit-maturity-levels`
+    - `./trg-9-03-kit-framework` → `./kit-framework`
+    - `./documentation-guidelines` → `/docs/website-guidelines/kit-structure`
+  - Fixed `/documentation/kit-master-data-overview`:
+    - `./trg-9-02-kit-maturity-levels` → `./kit-maturity-levels`
+    - `./trg-9-03-kit-framework` → `./kit-framework`
+
+#### Layout & Styling
+- **Centering & Alignment**
+  - Fixed button centering issues with flex container solutions
+  - Resolved width constraints vs. centering conflicts
+  - Proper inline-flex implementation for content-based widths
+
+- **Z-Index Management**
+  - Optimized icon z-index values for proper layering
+  - Fixed overlapping issues in component hierarchy
+
+- **Background & Visibility**
+  - Removed transparent overlays obscuring backgrounds
+  - Enhanced padding for better content visibility
+  - Background visibility improvements for business cards
+
+### Technical Debt
+- **Code Quality**
+  - Consistent import patterns across components
+  - Proper CSS module organization
+  - Component documentation and comments
+  - Apache License 2.0 headers on all new files
+
+### Documentation
+- **File Conversions**
+  - `kit-getting-started.md` → `kit-getting-started.mdx`
+  - Enhanced with React components and interactive elements
+
+- **Master Data Documentation**
+  - Comprehensive data source attribution
+  - Links to master data overview from footer and statistics