chore(systemd): remove obsolete systemd service files and update infrastructure documentation

- Remove 8 unused systemd service files from coordinator-api/systemd/
  - aitbc-adaptive-learning.service (port 8005)
  - aitbc-advanced-ai.service
  - aitbc-enterprise-api.service
  - aitbc-gpu-multimodal.service (port 8003)
  - aitbc-marketplace-enhanced.service (port 8006)
  - aitbc-modality-optimization.service (port 8004)
  - aitbc-multimodal.service (port 8002)
  - aitbc-openclaw-enhanced.service (port 8007

dev/ci/run_python_tests.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -euo pipefail
+# Uncomment for debugging
+# set -x
+
+PROJECT_ROOT=$(cd "$(dirname "$0")/../.." && pwd)
+PKG_PATHS="${PROJECT_ROOT}/packages/py/aitbc-crypto/src:${PROJECT_ROOT}/packages/py/aitbc-sdk/src"
+
+cd "${PROJECT_ROOT}"
+
+if command -v poetry >/dev/null 2>&1; then
+  RUNNER=(poetry run)
+else
+  RUNNER=()
+fi
+
+run_pytest() {
+  local py_path=$1
+  shift
+  if [ ${#RUNNER[@]} -gt 0 ]; then
+    PYTHONPATH="$py_path" "${RUNNER[@]}" python -m pytest "$@"
+  else
+    PYTHONPATH="$py_path" python -m pytest "$@"
+  fi
+}
+
+run_pytest "${PROJECT_ROOT}/apps/coordinator-api/src:${PKG_PATHS}" apps/coordinator-api/tests -q
+run_pytest "${PKG_PATHS}" packages/py/aitbc-sdk/tests -q
+run_pytest "${PROJECT_ROOT}/apps/miner-node/src:${PKG_PATHS}" apps/miner-node/tests -q
+run_pytest "${PROJECT_ROOT}/apps/wallet-daemon/src:${PROJECT_ROOT}/apps/blockchain-node/src:${PKG_PATHS}" apps/wallet-daemon/tests -q
+run_pytest "${PROJECT_ROOT}/apps/blockchain-node/src:${PKG_PATHS}" apps/blockchain-node/tests/test_websocket.py -q