feat: update go version, renovate config, tooling, fixes (#28)

* feat(deps): update go version, renovate config, tooling

* chore(deps): update google/go-github to v74

* feat(deps): migrate from yaml.v3 to goccy/go-yaml

* chore(deps): update goccy/go-yaml to v1.18.0 and address security concerns

* feat: improve issue templates and project configuration

- Update GitHub issue templates with CLI-specific fields for better bug reports
- Add specialized templates for documentation, theme, and performance issues
- Update pre-commit config to include comprehensive documentation linting
- Remove outdated Snyk configuration and security references
- Update Go version from 1.23+ to 1.24+ across project
- Streamline README.md organization and improve clarity
- Update CHANGELOG.md and CLAUDE.md formatting
- Create comprehensive CONTRIBUTING.md with development guidelines
- Remove TODO.md (replaced by docs/roadmap.md)
- Move SECURITY.md to docs/security.md

* docs: fix markdown linting violations across documentation

* fix: resolve template placeholder issues and improve uses statement generation

* fix: remove trailing whitespace from GitHub issue template

.github/ISSUE_TEMPLATE/theme_request.md

@@ -0,0 +1,113 @@
+---
+name: Theme request
+about: Request a new theme or theme improvements
+title: '[THEME] '
+labels: enhancement, theme
+assignees: ivuorinen
+
+---
+
+**Theme request type**
+What kind of theme enhancement is this?
+
+- [ ] New theme for a specific platform/use case
+- [ ] Improvements to existing theme
+- [ ] Theme bug fix
+- [ ] Theme customization options
+
+**Target platform/use case**
+What platform or scenario is this theme designed for?
+
+- [ ] GitHub Marketplace optimization
+- [ ] GitLab CI/CD documentation
+- [ ] Azure DevOps integration
+- [ ] Internal/Enterprise documentation
+- [ ] Minimal/lightweight documentation
+- [ ] Mobile-friendly documentation
+- [ ] Other: ___________
+
+**Visual requirements**
+Describe the desired appearance and formatting:
+
+**Badges and shields:**
+
+- [ ] Platform-specific badges
+- [ ] Version/release shields
+- [ ] Build status badges
+- [ ] License/security badges
+- [ ] Custom badge styling
+
+**Layout preferences:**
+
+- [ ] Table of contents
+- [ ] Collapsible sections
+- [ ] Multi-column layout
+- [ ] Sidebar navigation
+- [ ] Card-based layout
+- [ ] Minimal typography
+
+**Color scheme:**
+
+- [ ] Dark theme
+- [ ] Light theme
+- [ ] Platform-specific colors (GitHub green, GitLab orange, etc.)
+- [ ] Corporate/brand colors
+- [ ] High contrast for accessibility
+
+**Sample action.yml files**
+Provide example action.yml files to test the theme with:
+
+```yaml
+# Example 1: Simple action
+name: Simple Action
+description: A basic action example
+inputs:
+  input1:
+    description: First input
+    required: true
+outputs:
+  output1:
+    description: First output
+runs:
+  using: node20
+  main: index.js
+```
+
+```yaml
+# Example 2: Complex action (if applicable)
+# Add more complex action.yml if theme needs to handle advanced cases
+```
+
+**Reference examples**
+Provide links or descriptions of documentation that exemplifies the desired style:
+
+- [ ] Link to well-styled action documentation
+- [ ] Screenshots of desired layout
+- [ ] Reference to design system or style guide
+- [ ] Examples from other tools/platforms
+
+**Expected output preview**
+Mock up what the generated documentation should look like:
+
+```markdown
+# Show expected theme output here
+# Include formatting, badges, layout structure
+```
+
+**Existing theme starting point**
+Which existing theme should this be based on?
+
+- [ ] Start from scratch
+- [ ] Extend `github` theme
+- [ ] Extend `gitlab` theme
+- [ ] Extend `minimal` theme
+- [ ] Extend `professional` theme
+- [ ] Extend `default` theme
+
+**Additional context**
+Add any other context about the theme request:
+
+- Specific markdown features needed
+- Integration requirements
+- Performance considerations
+- Accessibility requirements