feat: add code quality tools and security policy

- Configure Husky with pre-commit and pre-push hooks
- Add commitlint for conventional commit validation
- Create comprehensive security policy (SECURITY.md)
- Add GitHub Actions for security scanning and dependency review
- Create PR and issue templates for better collaboration
- Add Canny.io references for community feedback
- Fix path traversal vulnerability in /assets endpoint
- Create MySQL schema sync analysis tools

.github/pull_request_template.md

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+## 📋 Description
+<!-- Describe your changes in detail -->
+
+## 🔗 Related Issue
+<!-- Link to the issue this PR addresses -->
+Closes #(issue_number)
+
+## 🧪 Type of Change
+<!-- Mark with an `x` all the checkboxes that apply -->
+- [ ] 🐛 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 not work as expected)
+- [ ] 📚 Documentation update
+- [ ] 🔧 Refactoring (no functional changes)
+- [ ] ⚡ Performance improvement
+- [ ] 🧹 Code cleanup
+- [ ] 🔒 Security fix
+
+## 🧪 Testing
+<!-- Describe the testing you performed to verify your changes -->
+- [ ] Manual testing completed
+- [ ] Functionality verified in development environment
+- [ ] No breaking changes introduced
+- [ ] Tested with different connection types (if applicable)
+
+## 📸 Screenshots (if applicable)
+<!-- Add screenshots to help explain your changes -->
+
+## ✅ Checklist
+<!-- Mark with an `x` all the checkboxes that apply -->
+- [ ] My code follows the project's style guidelines
+- [ ] I have performed a self-review of my code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings
+- [ ] I have manually tested my changes thoroughly
+- [ ] I have verified the changes work with different scenarios
+- [ ] Any dependent changes have been merged and published
+
+## 📝 Additional Notes
+<!-- Any additional information, concerns, or questions -->