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/feature_request.md

@@ -0,0 +1,38 @@
+---
+name: Feature request
+about: Suggest an idea for PicPeak
+title: '[FEATURE] '
+labels: 'enhancement'
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Use Case**
+Please describe how this feature would be used:
+- Who would use it? (photographers, clients, admins)
+- When would they use it?
+- Why is it important?
+
+**Similar Features**
+Are there similar features in:
+- PicDrop
+- Scrapbook.de
+- Other photo sharing platforms
+
+**Mockups or Examples**
+If applicable, add mockups, diagrams, or links to similar implementations.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
+
+**Implementation Ideas**
+If you have technical ideas about how this could be implemented, please share them.