feat: Merge PR #249 - Bootstrap skill with fixes and MCP optionality

Merged PR #249 from @MiaoDX with enhancements:

Bootstrap Feature:
- Self-bootstrap: Generate skill-seekers as Claude Code skill
- Robust frontmatter detection (dynamic line finding)
- SKILL.md validation (YAML + Markdown structure)
- Comprehensive error handling (uv check, permission checks)
- 6 E2E tests with venv isolation

MCP Optionality (User Feature):
- MCP removed from core dependencies
- Optional install: pip install skill-seekers[mcp]
- Lazy loading with helpful error messages
- Interactive setup wizard on first run
- Backward compatible

Bug Fixes:
- Fixed codebase_scraper.py AttributeError (line 1193)
- Fixed test_bootstrap_skill_e2e.py Path vs str issue
- Updated test version expectations to 2.7.0
- Added httpx to core (required for async scraping)
- Added anthropic to core (required for AI enhancement)

Testing:
- 6 new bootstrap E2E tests (all passing)
- 1207/1217 tests passing (99.2% pass rate)
- All bootstrap and enhancement tests pass
- Remaining failures are pre-existing test infrastructure issues

Documentation:
- Updated CHANGELOG.md with v2.7.0 notes
- Updated README.md with bootstrap and installation options
- Added setup wizard guide

Files Modified (9):
- CHANGELOG.md, README.md - Documentation updates
- pyproject.toml - MCP optional, httpx/anthropic core, markers, entry points
- scripts/bootstrap_skill.sh - Dynamic frontmatter, validation, error handling
- src/skill_seekers/cli/install_skill.py - Lazy MCP loading
- tests/test_cli_paths.py - Version 2.7.0
- uv.lock - Dependency updates

New Files (2):
- src/skill_seekers/cli/setup_wizard.py - Interactive installation guide (95 lines)
- tests/test_bootstrap_skill_e2e.py - E2E bootstrap tests (169 lines)

Credits: @MiaoDX for PR #249

Co-Authored-By: MiaoDX <MiaoDX@hotmail.com>
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

README.md

@@ -220,6 +220,37 @@ skill-seekers resume github_react_20260117_143022
 
 **See complete documentation**: [Configuration Guide](docs/guides/CONFIGURATION.md) (coming soon)
 
+### 🎯 Bootstrap Skill - Self-Hosting (**NEW - v2.7.0**)
+
+Generate skill-seekers as a Claude Code skill to use within Claude:
+
+```bash
+# Generate the skill
+./scripts/bootstrap_skill.sh
+
+# Install to Claude Code
+cp -r output/skill-seekers ~/.claude/skills/
+
+# Verify
+ls ~/.claude/skills/skill-seekers/SKILL.md
+```
+
+**What you get:**
+- ✅ **Complete skill documentation** - All CLI commands and usage patterns
+- ✅ **CLI command reference** - Every tool and its options documented
+- ✅ **Quick start examples** - Common workflows and best practices
+- ✅ **Auto-generated API docs** - Code analysis, patterns, and examples
+- ✅ **Robust validation** - YAML frontmatter and required fields checked
+- ✅ **One-command bootstrap** - Combines manual header with auto-generated analysis
+
+**How it works:**
+1. Runs codebase analysis on skill-seekers itself (dogfooding!)
+2. Combines handcrafted header (prerequisites, commands) with auto-generated content
+3. Validates SKILL.md structure (frontmatter, required fields)
+4. Outputs ready-to-use skill directory
+
+**Result:** Use skill-seekers to create skills, from within Claude Code!
+
 ### 🔐 Private Config Repositories (**NEW - v2.2.0**)
 - ✅ **Git-Based Config Sources** - Fetch configs from private/team git repositories
 - ✅ **Multi-Source Management** - Register unlimited GitHub, GitLab, Bitbucket repos
@@ -297,6 +328,53 @@ skill-seekers-codebase tests/ --build-how-to-guides --ai-mode none
 pip install skill-seekers
 ```
 
+### Installation Options
+
+Choose your installation profile based on which features you need:
+
+```bash
+# 1️⃣ CLI Only (Skill Generation)
+pip install skill-seekers
+
+# Features:
+# • Scrape documentation websites
+# • Analyze GitHub repositories
+# • Extract from PDFs
+# • Package skills for all platforms
+
+# 2️⃣ MCP Integration (Claude Code, Cursor, Windsurf)
+pip install skill-seekers[mcp]
+
+# Features:
+# • Everything from CLI Only
+# • MCP server for Claude Code
+# • One-command skill installation
+# • HTTP/stdio transport modes
+
+# 3️⃣ Multi-LLM Support (Gemini, OpenAI)
+pip install skill-seekers[all-llms]
+
+# Features:
+# • Everything from CLI Only
+# • Google Gemini support
+# • OpenAI ChatGPT support
+# • Enhanced AI features
+
+# 4️⃣ Everything
+pip install skill-seekers[all]
+
+# Features:
+# • All features enabled
+# • Maximum flexibility
+```
+
+**Need help choosing?** Run the setup wizard:
+```bash
+skill-seekers-setup
+```
+
+The wizard shows all options with detailed feature lists and guides you through configuration.
+
 Get started in seconds. No cloning, no setup - just install and run. See installation options below.
 
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