chore(security): enhance environment configuration, CI workflows, and wallet daemon with security improvements

- Restructure .env.example with security-focused documentation, service-specific environment file references, and AWS Secrets Manager integration
- Update CLI tests workflow to single Python 3.13 version, add pytest-mock dependency, and consolidate test execution with coverage
- Add comprehensive security validation to package publishing workflow with manual approval gates, secret scanning, and release

pytest.ini

@@ -1,47 +0,0 @@
-# pytest configuration for AITBC
-
-# Test discovery
-python_files = test_*.py *_test.py
-python_classes = Test*
-python_functions = test_*
-
-# Cache directory - prevent root level cache
-cache_dir = dev/cache/.pytest_cache
-
-# Custom markers
-markers =
-    unit: Unit tests (fast, isolated)
-    integration: Integration tests (may require external services)
-    slow: Slow running tests
-
-# Test paths to run - restored to full coverage
-testpaths = tests
-
-# Additional options for local testing
-addopts = 
-    --verbose
-    --tb=short
-
-# Python path for imports
-pythonpath =
-    .
-    packages/py/aitbc-crypto/src
-    packages/py/aitbc-sdk/src
-    apps/coordinator-api/src
-    apps/wallet-daemon/src
-    apps/blockchain-node/src
-    apps/trade-exchange/src
-
-# Environment variables for tests
-env =
-    AUDIT_LOG_DIR=/tmp/aitbc-audit
-    DATABASE_URL=sqlite:///./test_coordinator.db
-
-# Warnings
-filterwarnings =
-    ignore::UserWarning
-    ignore::DeprecationWarning
-    ignore::PendingDeprecationWarning
-    ignore::pytest.PytestUnknownMarkWarning
-    ignore::pydantic.PydanticDeprecatedSince20
-    ignore::sqlalchemy.exc.SADeprecationWarning