feat: add GitHub issue and PR templates

- Add bug report template with environment details
- Add feature request template with use case section
- Add documentation improvement template
- Add security vulnerability template with warnings
- Add question template for support
- Add issue template config with helpful links
- Add comprehensive pull request template
- Update mirror workflow to exclude production guide

These templates will help maintain quality contributions
and streamline the issue/PR process on GitHub.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,47 @@
+---
+name: Bug report
+about: Create a report to help us improve PicPeak
+title: '[BUG] '
+labels: 'bug'
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Environment (please complete the following information):**
+ - OS: [e.g. Ubuntu 22.04]
+ - Browser: [e.g. Chrome 120, Safari 17]
+ - PicPeak Version: [e.g. 1.0.22]
+ - Deployment Method: [e.g. Docker Compose, Manual]
+ - Database: [e.g. PostgreSQL 15, SQLite]
+
+**Logs**
+Please include relevant logs:
+```
+# Backend logs
+docker-compose logs backend | tail -50
+
+# Frontend console errors
+[paste any browser console errors]
+```
+
+**Additional context**
+Add any other context about the problem here.
+
+**Possible Solution**
+If you have an idea how to fix the issue, please describe it here.