fix: Fix local repo extraction limitations (code analyzer, exclusions, enhancement)

This commit fixes three critical limitations discovered during local repository skill extraction testing:

**Fix 1: Code Analyzer Import Issue**
- Changed unified_scraper.py to use absolute imports instead of relative imports
- Fixed: `from github_scraper import` → `from skill_seekers.cli.github_scraper import`
- Fixed: `from pdf_scraper import` → `from skill_seekers.cli.pdf_scraper import`
- Result: CodeAnalyzer now available during extraction, deep analysis works

**Fix 2: Unity Library Exclusions**
- Updated should_exclude_dir() to accept and check full directory paths
- Updated _extract_file_tree_local() to pass both dir name and full path
- Added exclusion config passing from unified_scraper to github_scraper
- Result: exclude_dirs_additional now works (297 files excluded in test)

**Fix 3: AI Enhancement for Single Sources**
- Changed read_reference_files() to use rglob() for recursive search
- Now finds reference files in subdirectories (e.g., references/github/README.md)
- Result: AI enhancement works with unified skills that have nested references

**Test Results:**
- Code Analyzer: ✅ Working (deep analysis running)
- Unity Exclusions: ✅ Working (297 files excluded from 679)
- AI Enhancement: ✅ Working (finds and reads nested references)

**Files Changed:**
- src/skill_seekers/cli/unified_scraper.py (Fix 1 & 2)
- src/skill_seekers/cli/github_scraper.py (Fix 2)
- src/skill_seekers/cli/utils.py (Fix 3)

**Test Artifacts:**
- configs/deck_deck_go_local.json (test configuration)
- docs/LOCAL_REPO_TEST_RESULTS.md (comprehensive test report)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/skill_seekers/cli/unified_scraper.py

@@ -23,10 +23,10 @@ from typing import Dict, List, Any, Optional
 
 # Import validators and scrapers
 try:
-    from config_validator import ConfigValidator, validate_config
-    from conflict_detector import ConflictDetector
-    from merge_sources import RuleBasedMerger, ClaudeEnhancedMerger
-    from unified_skill_builder import UnifiedSkillBuilder
+    from skill_seekers.cli.config_validator import ConfigValidator, validate_config
+    from skill_seekers.cli.conflict_detector import ConflictDetector
+    from skill_seekers.cli.merge_sources import RuleBasedMerger, ClaudeEnhancedMerger
+    from skill_seekers.cli.unified_skill_builder import UnifiedSkillBuilder
 except ImportError as e:
     print(f"Error importing modules: {e}")
     print("Make sure you're running from the project root directory")
@@ -168,10 +168,8 @@ class UnifiedScraper:
 
     def _scrape_github(self, source: Dict[str, Any]):
         """Scrape GitHub repository."""
-        sys.path.insert(0, str(Path(__file__).parent))
-
         try:
-            from github_scraper import GitHubScraper
+            from skill_seekers.cli.github_scraper import GitHubScraper
         except ImportError:
             logger.error("github_scraper.py not found")
             return
@@ -191,6 +189,12 @@ class UnifiedScraper:
             'local_repo_path': source.get('local_repo_path')  # Pass local_repo_path from config
         }
 
+        # Pass directory exclusions if specified (optional)
+        if 'exclude_dirs' in source:
+            github_config['exclude_dirs'] = source['exclude_dirs']
+        if 'exclude_dirs_additional' in source:
+            github_config['exclude_dirs_additional'] = source['exclude_dirs_additional']
+
         # Scrape
         logger.info(f"Scraping GitHub repository: {source['repo']}")
         scraper = GitHubScraper(github_config)
@@ -210,10 +214,8 @@ class UnifiedScraper:
 
     def _scrape_pdf(self, source: Dict[str, Any]):
         """Scrape PDF document."""
-        sys.path.insert(0, str(Path(__file__).parent))
-
         try:
-            from pdf_scraper import PDFToSkillConverter
+            from skill_seekers.cli.pdf_scraper import PDFToSkillConverter
         except ImportError:
             logger.error("pdf_scraper.py not found")
             return