docs: add mkdocs, update links, add architecture documentation

docs/content/stories/phase0/0.1.3-add-gitignore-for-go-projects.md

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+# Task 0.1.3: Add Gitignore
+
+## Metadata
+- **Task ID**: 0.1.3
+- **Title**: Add Gitignore
+- **Phase**: 0 - Project Setup & Foundation
+- **Section**: 0.1 Repository Bootstrap
+- **Status**: Pending
+- **Priority**: Medium
+- **Estimated Time**: 5 minutes
+- **Dependencies**: 0.1.1
+
+## Description
+Create a comprehensive `.gitignore` file for Go projects that excludes build artifacts, dependencies, IDE files, and sensitive data.
+
+## Requirements
+- Ignore Go build artifacts
+- Ignore dependency caches
+- Ignore IDE-specific files
+- Ignore environment-specific files
+- Ignore secrets and sensitive data
+
+## Implementation Steps
+1. Create `.gitignore` in project root
+2. Add standard Go ignores:
+   - `*.exe`, `*.exe~`, `*.dll`, `*.so`, `*.dylib`
+   - `*.test`, `*.out`
+   - `go.work`, `go.work.sum`
+3. Add IDE ignores:
+   - `.vscode/`, `.idea/`, `*.swp`, `*.swo`
+4. Add environment ignores:
+   - `.env`, `.env.local`, `config/secrets/`
+5. Add OS ignores:
+   - `.DS_Store`, `Thumbs.db`
+6. Add build artifacts:
+   - `bin/`, `dist/`, `tmp/`
+
+## Acceptance Criteria
+- [ ] `.gitignore` file exists
+- [ ] Common Go artifacts are ignored
+- [ ] IDE files are ignored
+- [ ] Sensitive files are ignored
+- [ ] Test with `git status` to verify
+
+## Implementation Notes
+- Use standard Go `.gitignore` templates
+- Ensure `config/secrets/` is ignored (for secret files)
+- Consider adding `*.log` for log files
+
+## Testing
+```bash
+# Verify gitignore works
+git status
+# Should not show build artifacts or IDE files
+```
+