feat(ingestion): implement log monitoring script with webhook integration

- Add logwhisperer.sh script for tailing and monitoring system logs
- Implement pattern matching for critical errors (FATAL, ERROR, OOM, segfault)
- Add JSON payload generation with severity levels
- Implement rate limiting and offset tracking per log source
- Add install.sh with interactive configuration and systemd support
- Create comprehensive test suite with pytest
- Add technical specification documentation
- Update CHANGELOG.md following Common Changelog standard

All 12 tests passing. Follows Metodo Sacchi (Safety first, little often, double check).

.gitignore

@@ -1 +1,22 @@
 .venv
+__pycache__/
+*.py[cod]
+*$py.class
+.Python
+*.so
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db