Added QA process - subagent, md template, scorecards.

.gitignore

@@ -0,0 +1,37 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+*.egg-info/
+dist/
+build/
+*.egg
+
+# Virtual environments
+.venv/
+
+# Tool caches
+.pytest_cache/
+.ruff_cache/
+.mypy_cache/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# Impakt session data (generated per test, not committed)
+.impakt/
+
+# Generated reports
+*.pdf
+!src/impakt/report/templates/*.html
+
+# Large data files (keep the .mme/.chn metadata, skip bulk .dat/.NNN files)
+# Note: test fixture data IS committed; production data is not