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/feature_request.md

@@ -0,0 +1,54 @@
+---
+name: ✨ Feature Request
+about: Suggest a new feature or enhancement
+title: '[FEATURE] '
+labels: feature
+assignees: ''
+---
+
+## Problem Statement
+<!-- What problem does this feature solve? -->
+
+## Proposed Solution
+<!-- Describe your ideal solution -->
+
+## Use Case
+<!-- How would you use this feature? Be specific. -->
+
+**Example scenario:**
+```
+When I... [describe situation]
+I want to... [describe action]
+So that... [describe benefit]
+```
+
+## Current Workaround
+<!-- How are you currently handling this? -->
+
+## Tier Relevance
+<!-- Which subscription tier would benefit most? -->
+- [ ] Sandbox (Free)
+- [ ] Indie
+- [ ] Studio
+- [ ] Enterprise
+- [ ] All tiers
+
+## Similar Features
+<!-- Have you seen this feature in other products? -->
+
+## Additional Context
+<!-- Screenshots, mockups, examples from competitors, etc. -->
+
+## Impact
+<!-- How important is this feature to you? -->
+- [ ] Critical - Blocking my business
+- [ ] High - Very useful
+- [ ] Medium - Nice to have
+- [ ] Low - Just an idea
+
+## Willingness to Pay
+<!-- Would you upgrade your tier for this feature? -->
+- [ ] Yes, I would upgrade immediately
+- [ ] Yes, I would consider upgrading
+- [ ] No, but it would improve my experience
+- [ ] N/A - Already on Enterprise