docs: add GitHub Pull Request Template

Author: rohitkumarnaidu

.github/pull_request_template.md

@@ -0,0 +1,26 @@
+## 🌸 Description
+<!-- Please include a summary of the change and which issue is fixed. -->
+<!-- Explain how this change aligns with Aarini's goal of being a compassionate and intelligent health companion. -->
+
+Fixes # (issue)
+
+## 🛠️ Type of change
+- [ ] 🐛 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 (updating README, API docs, etc.)
+- [ ] 💅 Styling (improving the UI/UX for a better user experience)
+
+## 🔒 Privacy & Security (Crucial for Aarini)
+- [ ] I have ensured that this change does NOT compromise user health data privacy.
+- [ ] If this touches Firebase/Firestore, I have verified the security rules remain strict.
+
+## ✅ Checklist:
+- [ ] My code follows the style guidelines of this project (React Native / Flask).
+- [ ] I have performed a self-review of my own code.
+- [ ] I have commented my code, particularly in hard-to-understand areas.
+- [ ] My changes generate no new warnings (ESLint, Prettier, Python linters).
+- [ ] I have added/updated tests where applicable.
+
+## 🤝 ECSoC / ELUSOC 2026
+- [ ] This PR is submitted under ECSoC / ELUSOC 2026.