feat(scripts): 添加针对code_js1接口的压测脚本和结果

添加压测脚本run_stress_code_js1.sh和stress_code_js1.py，用于对code_js1接口进行并发压力测试
生成压测结果JSON文件，包含请求统计、延迟和吞吐量等指标

scripts/results/code_js1_20251010_231059.json

@@ -0,0 +1,29 @@
+{
+  "url": "http://127.0.0.1:9898/api/dynamic/code_js1",
+  "method": "POST",
+  "total": 3000,
+  "concurrency": 150,
+  "timeout_sec": 8.0,
+  "ok": 3000,
+  "errors": 0,
+  "has_data": 3000,
+  "duration_ms": 13766.637417022139,
+  "throughput_rps": 217.91813854925584,
+  "status_counts": {
+    "200": 3000
+  },
+  "latency_ms": {
+    "min": 550.376542028971,
+    "avg": 686.4437982002273,
+    "max": 980.3312500007451,
+    "p50": 671.9021250028163,
+    "p90": 800.2895419485867,
+    "p95": 885.534834000282,
+    "p99": 946.9203340122476
+  },
+  "resp_size_bytes": {
+    "avg": 556,
+    "min": 556,
+    "max": 556
+  }
+}