feat: add a web UI server (#1345)

* update rdagent cmd

* fix log error message

* use multiProcessing.Process instead of subprocess.Popen

* add traces to gitignore

* add user interactor in RDLoop (finance scenarios)

* add interactor (feedback, hypothesis) for quant scens

* fix the test_end in qlib conf

* add features init config, general instruction to qlib scenarios

* set base features for based exp

* fix bug when combine factors

* move traces folder to git_ignore_folder

* fix bug in features init

* fix quant interact bug

* fix logger warning error

* bug fixes

* modify rdagent logger, now it can set file output

* adjust cli functions and fix logger bug

* fix server port transport problem

* update server_ui in cli

* add web code

* fix CI problem

* black fix

* update web ui README

* update README

* update readme

web/src/components/saveImage.vue

@@ -0,0 +1,39 @@
+<template>
+  <div>
+    <div id="capture" ref="capture">
+      <!-- 这里是你想要保存为图片的HTML内容 -->
+      <h1>Hello World</h1>
+    </div>
+    <button @click="saveAsImage">保存为图片</button>
+  </div>
+</template>
+
+<script>
+import { ref } from "vue";
+import html2canvas from "html2canvas";
+
+export default {
+  setup() {
+    const capture = ref(null);
+
+    const saveAsImage = async () => {
+      try {
+        const canvas = await html2canvas(capture.value);
+        const img = canvas.toDataURL("image/png");
+
+        const link = document.createElement("a");
+        link.href = img;
+        link.download = "capture.png";
+        link.click();
+      } catch (error) {
+        console.error("Error capturing the image:", error);
+      }
+    };
+
+    return {
+      capture,
+      saveAsImage,
+    };
+  },
+};
+</script>