chore: add pull request template for improved contribution guidelines

- Introduced a new pull request template to standardize submissions and enhance clarity for contributors.
- The template includes sections for description, related issues, motivation, AI usage, testing, and a checklist to ensure quality and completeness.
- Aims to streamline the review process and improve collaboration within the project.

.github/pull_request_template.md

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+## **🎯 Please make sure you are opening this Pull Request against the `next` branch!**
+
+## 📝 Description
+
+Please provide a clear and concise description of the changes introduced by this pull request.
+
+## 🔗 Related Issue(s)
+
+If this PR fixes or relates to an issue, please link it here (e.g., `Closes #123`).
+
+## 💡 Motivation and Context
+
+Why is this change required? What problem does it solve?
+
+## 🤖 Use of Artificial Intelligence (AI)
+
+The use of AI tools is absolutely welcome and not an issue. For transparency and continuous improvement, please answer the following:
+
+- Did you use any AI tools (such as GitHub Copilot, ChatGPT, etc.) to help develop this PR?
+    - [ ] No, this PR was developed without the assistance of AI tools.
+    - [ ] Yes, AI tools assisted in the development of this PR (please specify which ones and how they were used):
+        - Tool(s) used:
+        - Brief description of how AI contributed:
+- Was this PR generated entirely by an AI tool (i.e., with minimal human intervention)?  
+    - [ ] No  
+    - [ ] Yes (please provide details):
+
+## 🧪 How Has This Been Tested?
+
+Please describe the tests that you ran to verify your changes. Include details about your test environment, and the test cases you ran.
+
+## 📸 Screenshots (if appropriate)
+
+Add any relevant screenshots to help explain your changes.
+
+## 🔄 Types of Changes
+
+Check the relevant option(s) below:
+
+- [ ] 🐛 Bug fix (non-breaking change which fixes an issue)
+- [ ] ✨ New feature (non-breaking change which adds functionality)
+- [ ] ⚠️ Breaking change (fix or feature that would cause existing functionality to change)
+- [ ] 📚 Documentation update
+
+## ✅ Checklist
+
+- [ ] My code follows the code style of this project
+- [ ] I have performed a self-review of my code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] I have added necessary documentation (if appropriate)
+- [ ] I have rebased and/or merged on top of the latest `next` branch
+
+---
+
+🙏 Thank you for your contribution!