feat: Implement DeepWiki documentation generation tools

- Added `__init__.py` in `codexlens/tools` for documentation generation.
- Created `deepwiki_generator.py` to handle symbol extraction and markdown generation.
- Introduced `MockMarkdownGenerator` for testing purposes.
- Implemented `DeepWikiGenerator` class for managing documentation generation and file processing.
- Added unit tests for `DeepWikiStore` to ensure proper functionality and error handling.
- Created tests for DeepWiki TypeScript types matching.

.claude/skills/spec-generator/templates/profiles/library-profile.md

@@ -0,0 +1,25 @@
+# Library Spec Profile
+
+Defines additional required sections for library/SDK-type specifications.
+
+## Required Sections (in addition to base template)
+
+### In Architecture Document
+- **Public API Surface**: MUST define all public interfaces with signatures, parameters, return types
+- **Usage Examples**: MUST provide >= 3 code examples showing common usage patterns
+- **Compatibility Matrix**: MUST define supported language versions, runtime environments
+- **Dependency Policy**: MUST define transitive dependency policy, version constraints
+- **Extension Points**: SHOULD define plugin/extension mechanisms if applicable
+- **Bundle Size**: SHOULD define target bundle size and tree-shaking strategy
+
+### In Requirements Document
+- **API Ergonomics**: Requirements SHOULD address developer experience and API consistency
+- **Error Reporting**: MUST define error types, messages, and recovery hints for consumers
+
+### Quality Gate Additions
+| Check | Criteria | Severity |
+|-------|----------|----------|
+| Public API documented | All public interfaces with types | Error |
+| Usage examples | >= 3 working examples | Warning |
+| Compatibility matrix | Supported environments listed | Warning |
+| Dependency policy | Transitive deps strategy defined | Info |