doc: Prepare v1.1.0 release

Author: thefeqy

CHANGELOG.md

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+# Changelog
+
+All notable changes to `GrokPHP/Laravel` will be documented in this file.  
+This project follows [Semantic Versioning](https://semver.org/).
+
+---
+
+## [v1.1.0] - 2024-02-25
+### New Features
+- **Added Vision API Support**: The package now supports analyzing images using Grok AI Vision models.
+    - New method: `GrokAI::vision()->analyze($imagePath, $prompt)`.
+    - Supports models: `grok-2-vision-1212`, `grok-2-vision`, and `grok-2-vision-latest`.
+
+### Improvements
+- **Switched from Pest to PHPUnit** for better Laravel compatibility.
+- **Introduced `GrokResponse`**: A response wrapper for easier result handling.
+- **Enhanced Exception Handling**:
+    - Proper error handling for image inputs when used with non-vision models.
+    - Improved API key error handling.
+- **Refactored Service Provider** for better maintainability.
+- **Dropped Support for PHP 8.1**: Now requires **PHP 8.2+**.
+- **Added Support for Laravel 12**: Compatible with **Laravel 10, 11, and 12**.
+
+### Internal Changes
+- Improved test coverage for **chat and vision API features**.
+- Refactored code to follow **SOLID principles**.
+- Added GitHub Actions CI workflow to support **PHP 8.3, and 8.4**.
+
+
+---
+
+## [v1.0.0] - 2025-02-07
+### Initial Release
+- Released `GrokPHP/Laravel` v1.0.0, a Laravel wrapper for **Grok AI Client**.
+- Added support for **chat models** with a simple, fluent syntax.
+
+---
+
+### Notes
+- For detailed usage, refer to the [README.md](README.md).
+- Found an issue? Report it on [GitHub Issues](https://github.com/grok-php/laravel/issues).