Add complete community documentation

- README.md: Product overview + issue tracker landing
- SECURITY.md: Responsible disclosure policy
- CODE_OF_CONDUCT.md: Community guidelines
- CONTRIBUTING.md: How to contribute
- SUPPORT.md: Comprehensive support guide
- Issue templates: Bug, feature, support, docs, security

All references updated to evercatch.dev domain.

.gitea/issue_template/bug_report.md

@@ -0,0 +1,46 @@
+---
+name: 🐛 Bug Report
+about: Report a bug or unexpected behavior
+title: '[BUG] '
+labels: bug, status:investigating
+assignees: ''
+---
+
+## Bug Description
+<!-- A clear description of what the bug is -->
+
+## Steps to Reproduce
+1. 
+2. 
+3. 
+
+## Expected Behavior
+<!-- What you expected to happen -->
+
+## Actual Behavior
+<!-- What actually happened -->
+
+## Environment
+- **Subscription Tier**: Sandbox / Indie / Studio / Enterprise
+- **Endpoint Used**: (e.g., POST /api/v1/webhooks/stripe/...)
+- **Timestamp**: (e.g., 2026-02-13T10:30:00Z)
+- **Event ID** (if applicable): evt_...
+- **Browser** (if dashboard issue): Chrome / Firefox / Safari / Edge
+
+## Screenshots / Logs
+<!-- If applicable, add screenshots or error logs -->
+```
+Paste logs here
+```
+
+## Additional Context
+<!-- Any other context about the problem -->
+
+## Workaround
+<!-- If you found a temporary workaround, share it here -->
+
+---
+
+**⚠️ SECURITY WARNING**
+Do NOT include API keys, secrets, or sensitive customer data.
+For security issues, email security@evercatch.dev instead.