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- Remove outdated Snyk configuration and security references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/performance_issue.md

@@ -0,0 +1,128 @@
+---
+name: Performance issue
+about: Report CLI performance problems or slow operations
+title: '[PERF] '
+labels: performance, bug
+assignees: ivuorinen
+
+---
+
+**Performance problem**
+Describe what operation is slower than expected.
+
+**Operation details**
+Which gh-action-readme operation is slow?
+
+- [ ] `gen` - Single file generation
+- [ ] `gen --recursive` - Batch processing
+- [ ] `validate` - Action validation
+- [ ] `deps` - Dependency analysis
+- [ ] `config` - Configuration operations
+- [ ] Startup time
+- [ ] Other: ___________
+
+**Command executed**
+The exact command that exhibits performance issues:
+
+```bash
+gh-action-readme [your slow command here]
+```
+
+**Performance metrics**
+Provide timing and resource usage information:
+
+**Processing time:**
+
+- Current time: ___ seconds/minutes
+- Expected time: ___ seconds/minutes
+- Acceptable time: ___ seconds/minutes
+
+**Dataset size:**
+
+- Number of action.yml files: ___
+- Total size of files: ___ KB/MB
+- Repository structure depth: ___ levels
+- Largest action.yml size: ___ KB
+
+**Resource usage observed:**
+
+- Peak memory usage: ___ MB
+- CPU usage: ___% sustained
+- Disk I/O patterns: [heavy reads, heavy writes, mixed]
+- Network requests: ___ (for dependency analysis)
+
+## Environment information
+
+- OS: [e.g. macOS 14.1, Ubuntu 22.04, Windows 11]
+- Hardware: [e.g. MacBook Air M2, Intel i7, AWS EC2 t3.large]
+- gh-action-readme version: [run `gh-action-readme version`]
+- Go version: [run `go version`]
+- Installation method: [binary, homebrew, go install, docker]
+
+**Batch processing details (if applicable)**
+For recursive or batch operations:
+
+**Repository structure:**
+
+```text
+my-repo/
+├── .github/workflows/ (__ files)
+├── actions/
+│   ├── action1/ (action.yml)
+│   ├── action2/ (action.yml)
+│   └── ... (__ more actions)
+└── other directories...
+```
+
+**Processing pattern:**
+
+- [ ] Single large repository
+- [ ] Multiple small repositories
+- [ ] Mixed sizes
+- [ ] Deep directory nesting
+- [ ] Many small action.yml files
+- [ ] Few large action.yml files
+
+**Configuration impact**
+Settings that might affect performance:
+
+**Flags used:**
+
+- Theme: [github, gitlab, minimal, professional, default]
+- Output format: [md, html, json, asciidoc]
+- Verbose mode: [yes, no]
+- Dependency analysis: [enabled, disabled]
+
+**Configuration file settings:**
+
+```yaml
+# Paste relevant config that might impact performance
+```
+
+## Expected vs actual behavior
+
+- **Expected**: Should process files in specified seconds
+- **Actual**: Takes ___ seconds/minutes to complete
+- **Comparison**: Other similar tools take ___ seconds
+
+**Profiling data (if available)**
+If you've run any profiling:
+
+```text
+# Paste CPU/memory profiling output
+# Or performance monitoring results
+```
+
+**Workarounds**
+Any workarounds you've found:
+
+- Breaking into smaller batches
+- Specific flag combinations
+- Environment modifications
+
+## Additional context
+
+- Network conditions (for dependency analysis)
+- Disk type (SSD, HDD, network storage)
+- Concurrent operations running
+- Time of day patterns (if applicable)