chore: reorganize into polyglot monorepo (workshop)

- Move bigmind/ -> mcp/bigmind/
- Move webscraper/ -> mcp/webscraper/
- Move mss-failsafe/ -> java/mss-failsafe/
- Move Wellmann-Shop/ -> java/wellmann-shop/ (normalize to kebab-case)
- Add .roo/ IDE config files to tracking
- Add plans/REPO_STRATEGY.md (monorepo strategy document)
- Expand .gitignore: Java/Maven, Node/TS, coverage, uv.lock
- Rewrite README.md as navigation index
- Update .roo/mcp.json webscraper path to mcp/webscraper/

mcp/webscraper/tests/conftest.py

@@ -0,0 +1,7 @@
+"""Shared test fixtures for webscraper."""
+
+import sys
+from pathlib import Path
+
+# Add src to path for imports
+sys.path.insert(0, str(Path(__file__).parent.parent / "src"))