chore: directory migration - gateway→server, web→client/electron

client/harmony/entry/src/main/ets/pages/SessionsPage.ets

@@ -0,0 +1,153 @@
+/*
+ * AgentMail 鸿蒙客户端 — 会话列表页
+ * GET /me/sessions 展示所有会话摘要
+ */
+import { ApiClient, ApiError } from '../api/ApiClient';
+import { MailApi } from '../api/MailApi';
+import { Session } from '../model/Models';
+
+@Entry
+@Component
+struct SessionsPage {
+  @State sessions: Session[] = [];
+  @State loading: boolean = false;
+  @State error: string = '';
+
+  private client: ApiClient | null = null;
+  private mailApi: MailApi | null = null;
+
+  aboutToAppear(): void {
+    const ctx = this.getUIContext().getHostContext();
+    if (ctx !== undefined) {
+      const client: ApiClient = ApiClient.getInstance(ctx);
+      this.client = client;
+      this.mailApi = new MailApi(client);
+      this.loadSessions();
+    }
+  }
+
+  async loadSessions(): Promise<void> {
+    const m: MailApi | null = this.mailApi;
+    if (m === null) {
+      return;
+    }
+    this.loading = true;
+    this.error = '';
+    try {
+      const resp = await m.sessions();
+      this.sessions = resp.sessions;
+    } catch (e) {
+      const ae = e as ApiError;
+      this.error = ae.code === 0 ? ae.message : '加载失败';
+    } finally {
+      this.loading = false;
+    }
+  }
+
+  build() {
+    Column() {
+      // 顶栏
+      Row() {
+        Text('会话')
+          .fontSize(20).fontWeight(FontWeight.Bold).fontColor('#333333')
+      }
+      .width('100%').height(56)
+      .padding({ left: 16 })
+      .backgroundColor('#FFFFFF')
+
+      if (this.loading) {
+        Column() {
+          LoadingProgress().width(40).height(40)
+          Text('加载中…').fontSize(14).fontColor('#999999').margin({ top: 8 })
+        }
+        .width('100%').layoutWeight(1)
+        .justifyContent(FlexAlign.Center)
+      } else if (this.error.length > 0) {
+        Column() {
+          Text(this.error).fontSize(14).fontColor('#FF4444')
+          Button('重试').margin({ top: 12 }).onClick(() => { this.loadSessions(); })
+        }
+        .width('100%').layoutWeight(1)
+        .justifyContent(FlexAlign.Center)
+      } else if (this.sessions.length === 0) {
+        Column() {
+          Text('📭 暂无会话').fontSize(16).fontColor('#999999')
+        }
+        .width('100%').layoutWeight(1)
+        .justifyContent(FlexAlign.Center)
+      } else {
+        List({ space: 1 }) {
+          ForEach(this.sessions, (s: Session) => {
+            ListItem() {
+              this.SessionItem(s)
+            }
+            .height(90)
+          }, (s: Session) => s.session_id)
+        }
+        .width('100%').layoutWeight(1)
+        .divider({ strokeWidth: 1, color: '#EEEEEE', startMargin: 16, endMargin: 16 })
+      }
+
+      // 底栏
+      Row() {
+        Text('共 ' + this.sessions.length + ' 个会话').fontSize(12).fontColor('#999999')
+      }
+      .width('100%').height(40).padding({ left: 16 })
+      .backgroundColor('#FFFFFF')
+    }
+    .width('100%').height('100%')
+    .backgroundColor('#F5F7FA')
+  }
+
+  @Builder
+  SessionItem(s: Session) {
+    Row() {
+      Column() {
+        Row() {
+          Text(s.session_alias.length > 0 ? s.session_alias : s.subject)
+            .fontSize(14).fontWeight(FontWeight.Bold).fontColor('#333333')
+            .maxLines(1).textOverflow({ overflow: TextOverflow.Ellipsis })
+            .layoutWeight(1)
+
+          // 预算进度
+          if (s.max_rounds > 0) {
+            Text(s.used_rounds + '/' + s.max_rounds)
+              .fontSize(11).fontColor(s.used_rounds >= s.max_rounds ? '#FF4444' : '#666666')
+              .backgroundColor(s.used_rounds >= s.max_rounds ? '#FFEBEE' : '#F5F5F5')
+              .borderRadius(4).padding({ left: 4, right: 4, top: 1, bottom: 1 })
+          }
+
+          // 未读
+          if (s.unread_count > 0) {
+            Text(s.unread_count + '')
+              .fontSize(11).fontColor('#FFFFFF')
+              .backgroundColor('#FF4444')
+              .borderRadius(10).width(20).height(20)
+              .textAlign(TextAlign.Center)
+              .margin({ left: 6 })
+          }
+        }
+        .width('100%')
+
+        Text('对方: ' + s.from_agent).fontSize(12).fontColor('#666666').margin({ top: 4 })
+
+        Row() {
+          Text(s.permission_mode.length > 0 ? s.permission_mode : '—')
+            .fontSize(11).fontColor('#666666')
+            .backgroundColor('#F0F0F0').borderRadius(4)
+            .padding({ left: 4, right: 4, top: 1, bottom: 1 })
+          Blank()
+          Text(s.mail_count + ' 封').fontSize(11).fontColor('#999999')
+          Text(' · ' + s.status).fontSize(11).fontColor(s.status === 'active' ? '#4CAF50' : '#999999')
+        }
+        .width('100%').margin({ top: 4 })
+      }
+      .layoutWeight(1).height('100%')
+      .alignItems(HorizontalAlign.Start)
+      .justifyContent(FlexAlign.SpaceBetween)
+    }
+    .width('100%').height('100%')
+    .padding({ left: 16, right: 16, top: 12, bottom: 12 })
+    .alignItems(VerticalAlign.Center)
+  }
+}