任务共享：面板补「共享给谁」区块 laoyang/FamilyBook#26

用户原话（2026-10-28）：「鸿蒙端对齐网页端」。任务面板原来没有共享入口，现在：

1) FbTaskShare 类型 + parseTaskDetail 解析 Task::find 已带的 shares
2) FbTaskRepo 补 fetchTaskShares/shareTask/unshareTask（删除走 query）
3) FbTaskPanel 加「共享给谁」区块：列表（可改/只看）+ 逐条取消 +
   「＋ 共享」复用选人组件（与资源/财务共享同一套）

编译 BUILD SUCCESSFUL；服务端冒烟 _i26_task_share_api.py 13/0 + 反证命中。

entry/src/main/ets/components/FbTaskPanel.ets

@@ -31,17 +31,20 @@
 
 import { FbColors, FbMetric, FB_MASK, fbAlpha, fbTint } from '../common/Theme';
 import {
-  FbBoardOpt, FbTaskAttach, FbTaskComment, FbTaskDetail, FbTaskItem, FbTaskKid,
+  FbBoardOpt, FbTaskAttach, FbTaskComment, FbTaskDetail, FbTaskItem, FbTaskKid, FbTaskShare,
 } from '../model/Types';
 import { FbSheetRing } from './FbSheetRing';
 import { FbSheetClose } from './FbSheetClose';
 import { FbCheckCircle } from './Widgets';
+import { FbPersonPickSheet } from './FbPersonPickSheet';
+import { FbPersonRepo, FbRosterPerson } from '../data/FbPersonRepo';
 import { FB_TOKEN_STORE } from '../data/FbTokenStore';
 import { FbApiResult } from '../data/FbHttp';
 import { fbImageSrc } from '../data/FbAttachQueue';
 import {
   addTaskComment, createTask, deleteTask, delTaskAttach, getTask, moveTask,
   setTaskStatus, uploadTaskAttach, FbTaskDraft,
+  fetchTaskShares, shareTask, unshareTask,
 } from '../data/FbTaskRepo';
 import { parseTaskDetail } from '../data/FbParse';
 import { picker } from '@kit.CoreFileKit';
@@ -104,6 +107,10 @@ export struct FbTaskPanel {
   /** 删除按钮点第一次 → 变成「确定删除？」 */
   @Local confirmDel: boolean = false;
   @Local uploading: boolean = false;
+  // 共享（工单 #26）
+  @Local roster: FbRosterPerson[] = [];
+  @Local pickingShare: boolean = false;
+  @Local shareBusy: boolean = false;
 
   aboutToAppear(): void {
     this.reload();
@@ -231,6 +238,52 @@ export struct FbTaskPanel {
     return d !== null ? d.attachs : [];
   }
 
+  /** 共享给谁（工单 #26） */
+  private shares(): FbTaskShare[] {
+    const d: FbTaskDetail | null = this.detail;
+    return d !== null ? d.shares : [];
+  }
+
+  private async openSharePicker(): Promise<void> {
+    if (this.roster.length === 0) {
+      try {
+        this.roster = await FbPersonRepo.inst().list();
+      } catch (e) {
+        this.roster = [];
+      }
+    }
+    this.pickingShare = true;
+  }
+
+  private async addShares(ids: number[]): Promise<void> {
+    this.pickingShare = false;
+    if (ids.length === 0) {
+      return;
+    }
+    this.shareBusy = true;
+    let bad: string = '';
+    for (const pid of ids) {
+      const res: FbApiResult = await shareTask(this.token(), this.taskId, pid, 'write');
+      if (!res.ok && bad === '') {
+        bad = res.error;
+      }
+    }
+    this.shareBusy = false;
+    this.note = bad !== '' ? bad : '';
+    await this.reload();
+  }
+
+  private async dropShare(personId: number): Promise<void> {
+    this.shareBusy = true;
+    const res: FbApiResult = await unshareTask(this.token(), this.taskId, personId);
+    this.shareBusy = false;
+    if (!res.ok) {
+      this.note = res.error !== '' ? res.error : '没取消成。';
+      return;
+    }
+    await this.reload();
+  }
+
   private categoryOf(): string {
     const d: FbTaskDetail | null = this.detail;
     return d !== null ? d.category : '';
@@ -515,6 +568,7 @@ export struct FbTaskPanel {
                 this.statusSeg()
                 this.boardChips()
                 this.infoRows()
+                this.shareSection()
                 this.kidSection()
                 this.attachSection()
                 this.commentSection()
@@ -551,6 +605,22 @@ export struct FbTaskPanel {
         }
       }
       .width('94%')
+
+      /* 选人浮层：共享给谁（工单 #26） */
+      if (this.pickingShare) {
+        FbPersonPickSheet({
+          people: this.roster,
+          selected: [],
+          title: '共享给谁',
+          accent: this.accent,
+          onConfirm: (ids: number[]): void => {
+            this.addShares(ids);
+          },
+          onClose: (): void => {
+            this.pickingShare = false;
+          }
+        })
+      }
     }
     .width('100%')
     .height('100%')
@@ -754,6 +824,70 @@ export struct FbTaskPanel {
     .alignItems(VerticalAlign.Top)
   }
 
+  /** 共享给谁（工单 #26）：列表 + 共享入口 + 逐条取消 */
+  @Builder
+  shareSection() {
+    Column({ space: 6 }) {
+      Row({ space: 6 }) {
+        Text('共享给谁')
+          .fontSize(FbMetric.fontSmall)
+          .fontWeight(FontWeight.Medium)
+          .fontColor(FbColors.ink)
+        if (this.shares().length > 0) {
+          Text(this.shares().length.toString())
+            .fontSize(FbMetric.fontTiny)
+            .fontColor(FbColors.faint)
+        }
+        Blank()
+        Text(this.shareBusy ? '处理中…' : '＋ 共享')
+          .fontSize(FbMetric.fontTiny)
+          .fontColor(this.shareBusy ? FbColors.faint : this.accent)
+          .padding({ left: 10, right: 10, top: 6, bottom: 6 })
+          .backgroundColor(fbAlpha(this.accent, 0.1))
+          .borderRadius(FbMetric.radiusPill)
+          .onClick((): void => {
+            this.openSharePicker();
+          })
+      }
+      .width('100%')
+      .padding({ top: 12 })
+      .alignItems(VerticalAlign.Center)
+
+      if (this.shares().length === 0) {
+        Text('还没共享给谁；共享后对方能在任务里看到它，权限分「可改 / 只看」')
+          .fontSize(FbMetric.fontTiny)
+          .fontColor(FbColors.faint)
+          .width('100%')
+      } else {
+        ForEach(this.shares(), (s: FbTaskShare) => {
+          Row({ space: 8 }) {
+            Text(s.name)
+              .fontSize(FbMetric.fontSmall)
+              .fontColor(FbColors.ink)
+              .layoutWeight(1)
+              .maxLines(1)
+              .textOverflow({ overflow: TextOverflow.Ellipsis })
+            Text(s.perm === 'read' ? '只看' : '可改')
+              .fontSize(FbMetric.fontTiny)
+              .fontColor(FbColors.faint)
+            Text('取消')
+              .fontSize(FbMetric.fontTiny)
+              .fontColor(FbColors.red)
+              .padding({ left: 6, right: 2, top: 2, bottom: 2 })
+              .onClick((): void => {
+                this.dropShare(s.personId);
+              })
+          }
+          .width('100%')
+          .padding({ top: 6, bottom: 6 })
+          .alignItems(VerticalAlign.Center)
+        }, (s: FbTaskShare): string => 'tsh_' + s.personId.toString())
+      }
+    }
+    .width('100%')
+    .alignItems(HorizontalAlign.Start)
+  }
+
   /** 子任务：列表 + 加一条 */
   @Builder
   kidSection() {