refactor: restructure test suite

- Remove tests/production/ directory (JWT auth, production monitoring, etc.)
- Remove tests/staking/ directory
- Remove tests/services/test_staking_service.py
- Remove tests/phase1/ directory
- Remove tests/load_test.py
- Add tests/verification/ directory with 20+ new test files
- Add tests/load/locustfile.py for load testing
- Add tests/security/test_confidential_transactions.py
- Add tests/integration/test_working_integration.py
- Update docs/ for minimum Python version and paths

tests/verification/run_tests.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+"""
+Wrapper script to run pytest with proper Python path configuration
+"""
+
+import sys
+from pathlib import Path
+
+# Add project root to sys.path
+project_root = Path(__file__).parent
+sys.path.insert(0, str(project_root))
+
+# Add package source directories
+sys.path.insert(0, str(project_root / "packages" / "py" / "aitbc-core" / "src"))
+sys.path.insert(0, str(project_root / "packages" / "py" / "aitbc-crypto" / "src"))
+sys.path.insert(0, str(project_root / "packages" / "py" / "aitbc-p2p" / "src"))
+sys.path.insert(0, str(project_root / "packages" / "py" / "aitbc-sdk" / "src"))
+
+# Add app source directories
+sys.path.insert(0, str(project_root / "apps" / "coordinator-api" / "src"))
+sys.path.insert(0, str(project_root / "apps" / "wallet-daemon" / "src"))
+sys.path.insert(0, str(project_root / "apps" / "blockchain-node" / "src"))
+
+# Run pytest with the original arguments
+import pytest
+sys.exit(pytest.main())