feat: Add CHANGELOG for version 1.0.0

Author: ishansasika

CHANGELOG.md

@@ -0,0 +1,44 @@
+# Changelog
+
+All notable changes to this project 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).
+
+## [1.0.0] - 2025-01-11
+
+### Added
+- Initial production-ready release
+- Complete UI with 4 pages (Home, About, Services, Contact)
+- Angular 21 with standalone components (no NgModules)
+- Tailwind CSS 4 with new @import syntax
+- TypeScript 5.9 with strict mode
+- Vitest 4 for fast unit testing
+- Dark mode support throughout the application
+- Mobile-first responsive design
+- Beautiful blue-purple gradient theme
+- MIT License file
+- EditorConfig for consistent coding styles
+- Prettier configuration for code formatting
+- VS Code workspace recommendations
+- Firebase deployment configuration
+- GitHub Actions workflow for automatic deployment
+- Comprehensive README with setup instructions
+- CLAUDE.md with detailed architecture documentation
+
+### Features
+- **Header Component**: Sticky navigation with mobile menu and active route highlighting
+- **Footer Component**: Multi-column footer with brand info, quick links, and social icons
+- **Home Page**: Hero section, feature cards, statistics, and CTAs
+- **About Page**: Mission statement, tech stack showcase, values cards, and team profiles
+- **Services Page**: 6 color-coded service cards with detailed features
+- **Contact Page**: Functional contact form with validation and contact information
+
+### Developer Experience
+- Standalone component architecture (no NgModules required)
+- Type-safe development with TypeScript strict mode
+- Fast build times with Angular build system
+- Vitest for lightning-fast unit tests
+- Prettier for consistent code formatting
+- Catch-all route for 404 handling
+- Production-optimized builds