feat: add pull request templates for bug fixes, features, and integrations (#1044)

* feat: add pull request templates for bug fixes, features, and integrations

- Introduced a comprehensive pull request template structure to streamline contributions.
- Added specific templates for bug fixes, new features, and integrations to enhance clarity and consistency in PR submissions.
- Configured the pull request template settings for better user guidance during the contribution process.

* chore: fix format

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* chore: implement PR requested changes

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

.github/PULL_REQUEST_TEMPLATE/feature.md

@@ -0,0 +1,49 @@
+## ✨ New Feature
+
+### 📋 Feature Description
+<!-- Brief description -->
+
+### 🎯 Problem Statement
+<!-- What problem does this feature solve? Why is it needed? -->
+
+### 💡 Solution
+<!-- How does this feature solve the problem? What's the approach? -->
+
+### 🔗 Related Issues
+<!-- Link related issues: Fixes #123, Part of #456 -->
+
+## How to Use It
+
+### Quick Start
+```bash
+# Basic usage example
+```
+
+### Example
+<!-- Show a real use case -->
+```bash
+# Practical example
+```
+
+**What you should see:**
+<!-- Expected behavior -->
+
+## Contributor Checklist
+- [ ] Created changeset: `npm run changeset`
+- [ ] Tests pass: `npm test`
+- [ ] Format check passes: `npm run format-check`
+- [ ] Addressed CodeRabbit comments
+- [ ] Added tests for new functionality
+- [ ] Manually tested in CLI mode
+- [ ] Manually tested in MCP mode (if applicable)
+
+## Changelog Entry
+<!-- One-liner for release notes -->
+
+---
+
+### For Maintainers
+
+- [ ] Feature aligns with project vision
+- [ ] CIs pass
+- [ ] Changeset file exists