[CI/Build] Add CI end-to-end (E2E) tests (#139)

* [CI/Build] Add CI end-to-end (E2E) tests
Signed-off-by: Chenchao Hu <huchenchao@example.com>

ci/scripts/server/wait_vllm.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+source ci/scripts/common/env.sh
+source ci/scripts/common/log.sh
+
+log "Waiting for vLLM to be ready: ${VLLM_API_BASE}/v1/models"
+
+docker exec "${DOCKER_NAME}" bash -lc "
+  set -e
+
+  for i in {1..90}; do
+    if curl -sf ${VLLM_API_BASE}/v1/models >/dev/null; then
+      echo 'vLLM is ready'
+      tail -n 500 ${VLLM_LOG} || true
+      exit 0
+    fi
+    sleep 5
+  done
+
+  echo 'vLLM start failed'
+  echo '==== last 500 lines of vllm.log ===='
+  tail -n 500 ${VLLM_LOG} || true
+  exit 1
+"