feat: 重构EGM计算核心并添加实时日志推送功能

将EGM计算逻辑从webview_app.py移到main.py中的run_egm函数
添加实时日志推送和计算结果回调机制
支持后台线程计算不阻塞前端

webui/src/components/ParameterForm.vue

@@ -317,7 +317,7 @@
 </template>
 
 <script setup lang="ts">
-import { ref, reactive, computed } from 'vue'
+import { ref, reactive, computed, onMounted, onUnmounted } from 'vue'
 import type { AllParameters } from '@/types'
 import LogComponent from './Log.vue'
 
@@ -411,17 +411,10 @@ const calculate = async () => {
   try {
     // 调用 pywebview 的 Python 函数
     if (window.pywebview) {
-      const response = await window.pywebview.api.calculate(params)
-
-      // 显示后端日志
-      const logs = response.logs
-      if (Array.isArray(logs) && logs.length > 0) {
-        for (const log of logs) {
-          logRef.value?.addLog(log.level as any, log.message)
-        }
-      }
-
-      result.value = JSON.stringify(response, null, 2)
+      // 后台线程启动计算，实时日志通过 addLogFromBackend 推送
+      // 结果通过 receiveResult 回调接收
+      await window.pywebview.api.calculate(params)
+      // 不在这里设置 calculating = false，等待 receiveResult 回调
     } else {
       // 开发模式下的模拟
       await new Promise(resolve => setTimeout(resolve, 1000))
@@ -436,11 +429,11 @@ const calculate = async () => {
           parameters: params
         }
       }, null, 2)
+      calculating.value = false
     }
   } catch (e: any) {
     error.value = e.message || '计算失败'
     logRef.value?.addLog('error', e.message || '计算失败')
-  } finally {
     calculating.value = false
   }
 }
@@ -514,8 +507,33 @@ declare global {
         export_config: (params: AllParameters) => Promise<any>
       }
     }
+    addLogFromBackend?: (log: { level: string; time: string; message: string }) => void
+    receiveResult?: (result: { success: boolean; message: string; data?: any; error?: string }) => void
   }
 }
+
+// 注册全局日志接收函数，供后端实时调用
+onMounted(() => {
+  // 实时日志推送
+  window.addLogFromBackend = (log: { level: string; time: string; message: string }) => {
+    logRef.value?.addLog(log.level as any, log.message)
+  }
+
+  // 接收计算结果
+  window.receiveResult = (res: { success: boolean; message: string; data?: any; error?: string }) => {
+    calculating.value = false
+    if (res.success) {
+      result.value = JSON.stringify(res, null, 2)
+    } else {
+      error.value = res.error || res.message
+    }
+  }
+})
+
+onUnmounted(() => {
+  window.addLogFromBackend = undefined
+  window.receiveResult = undefined
+})
 </script>
 
 <style scoped>