feat: add new issue template for companion (calcom#26939)

Author: dhairyashiil

.github/ISSUE_TEMPLATE/companion.md

@@ -0,0 +1,120 @@
+---
+name: Companion (iOS/Android/Extension)
+about: Report bugs or request features for mobile apps and browser extension
+title: ""
+labels: ["companion", "🚨 needs approval"]
+assignees: ""
+---
+
+### Issue Type
+
+<!--
+  Select one:
+  - Bug Report
+  - Feature Request
+-->
+
+- [ ] 🐛 Bug Report
+- [ ] ✨ Feature Request
+
+### Platform
+
+<!--
+  Select all that apply:
+-->
+
+- [ ] 📱 iOS App
+- [ ] 🤖 Android App
+- [ ] 🧩 Browser Extension
+
+### Platform Details
+
+<!--
+  Fill in the details for your selected platform(s).
+  Delete sections that don't apply.
+-->
+
+#### iOS
+- **iOS Version**: (e.g., 17.2)
+- **Device Model**: (e.g., iPhone 15 Pro)
+- **App Version**: (e.g., 1.0.0)
+
+#### Android
+- **Android Version**: (e.g., 14)
+- **Device Model**: (e.g., Pixel 8)
+- **App Version**: (e.g., 1.0.0)
+
+#### Browser Extension
+- **Browser & Version**: (e.g., Chrome 120, Firefox 121)
+- **Extension Version**: (e.g., 1.0.0)
+
+---
+
+### Description
+
+<!--
+  Provide a clear and concise description of the issue or feature.
+-->
+
+(Write your description here.)
+
+### Steps to Reproduce (Bug Reports Only)
+
+<!--
+  If this is a bug report, provide steps to reproduce the issue.
+  Delete this section for feature requests.
+-->
+
+1. Go to...
+2. Click on...
+3. See error...
+
+### Expected Behavior
+
+<!--
+  What did you expect to happen?
+-->
+
+(Describe what you expected.)
+
+### Actual Behavior (Bug Reports Only)
+
+<!--
+  What actually happened? Delete this section for feature requests.
+-->
+
+(Describe what actually happened.)
+
+### Proposed Solution (Feature Requests Only)
+
+<!--
+  If this is a feature request, describe your proposed solution.
+  Delete this section for bug reports.
+-->
+
+(Describe your proposed solution.)
+
+### Screenshots / Evidence
+
+<!--
+  Add screenshots, screen recordings, or console logs if applicable.
+  You can use tools like Bird Eats Bug for recordings.
+-->
+
+(Attach evidence here.)
+
+### Additional Context
+
+<!--
+  Any other information that might be helpful.
+-->
+
+(Add any additional context here.)
+
+---
+
+##### House rules
+
+- If this issue has a `🚨 needs approval` label, don't start coding yet. Wait until a core member approves the request by removing this label.
+- Your ideas are invaluable! However, they undergo review to ensure alignment with the product's direction.
+- Follow best practices in our [Contributor Docs](https://github.com/calcom/cal.com/blob/main/CONTRIBUTING.md)