更新压缩机制，提高前缀缓存命中率，优化UI渲染机制，提高帧数

tests/web_page/steps/v_channel.json

@@ -0,0 +1,16 @@
+[
+  {"action": "snapshot", "max_elements": 300},
+  {"action": "click", "ref": 37, "note": "业务来源"},
+  {"action": "wait", "wait_seconds": 1},
+  {"action": "click", "selector": "text=\"直销业务\"", "note": "业务来源选项"},
+  {"action": "wait", "wait_seconds": 1},
+  {"action": "click", "ref": 39, "note": "渠道中级分类"},
+  {"action": "wait", "wait_seconds": 1},
+  {"action": "click", "selector": "text=\"传统直销业务\"", "note": "中级分类选项"},
+  {"action": "wait", "wait_seconds": 1},
+  {"action": "click", "ref": 41, "note": "渠道子类"},
+  {"action": "wait", "wait_seconds": 1},
+  {"action": "click", "selector": "text=\"员工直销\"", "note": "渠道子类选项"},
+  {"action": "wait", "wait_seconds": 1},
+  {"action": "eval_js", "js": "(() => { const nz = Array.from(document.querySelectorAll('nz-select')).map(e => e.textContent.trim().slice(0, 15)); return JSON.stringify(nz.filter(t => ['直销业务', '传统直销业务', '员工直销'].includes(t))); })()"}
+]