feat: 新增实验性微信卡片分享与自动部署能力

补充 Cloudflare Worker、R2 存储、微信 JS-SDK 签名与上传鉴权
增加自动部署 Skill 和配置引导文档
优化报告工具栏、微信卡片弹窗及窄屏响应式布局
补充 Worker 鉴权、卡片生成、过期清理与安全转义测试

src/main/wechat-share-card-service.ts

@@ -0,0 +1,73 @@
+import { nativeImage } from 'electron'
+import fs from 'fs-extra'
+import QRCode from 'qrcode'
+import type {
+  PublishWechatShareCardRequest,
+  PublishWechatShareCardResult
+} from '../shared/wechat-share-card'
+import { WechatShareConfigStore } from './wechat-share-config-store'
+
+const MAX_REPORT_BYTES = 25 * 1024 * 1024
+
+export class WechatShareCardService {
+  constructor(private readonly configStore: WechatShareConfigStore) {}
+
+  async publish(request: PublishWechatShareCardRequest): Promise<PublishWechatShareCardResult> {
+    try {
+      const config = await this.configStore.loadRaw()
+      if (!config) return { success: false, error: '请先配置微信卡片服务' }
+      const png = await fs.readFile(request.pngPath)
+      if (!png.length) return { success: false, error: '日报图片为空' }
+      if (png.length > MAX_REPORT_BYTES) return { success: false, error: '日报图片不能超过 25 MB' }
+
+      const source = nativeImage.createFromBuffer(png)
+      if (source.isEmpty()) return { success: false, error: '无法读取日报图片' }
+      const size = source.getSize()
+      const squareSize = Math.min(size.width, size.height)
+      const thumbnail = source
+        .crop({ x: 0, y: 0, width: squareSize, height: squareSize })
+        .resize({ width: 360, height: 360, quality: 'best' })
+        .toJPEG(84)
+
+      const response = await fetch(`${config.serviceUrl}/api/cards`, {
+        method: 'POST',
+        headers: {
+          Authorization: `Bearer ${config.uploadToken}`,
+          'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+          title: request.title.trim().slice(0, 64),
+          description: request.description.trim().slice(0, 120),
+          expiresInDays: Math.max(1, Math.min(30, request.expiresInDays || 7)),
+          imageBase64: png.toString('base64'),
+          thumbnailBase64: thumbnail.toString('base64')
+        }),
+        signal: AbortSignal.timeout(90_000)
+      })
+      const payload = (await response.json().catch(() => ({}))) as {
+        cardId?: string
+        shareUrl?: string
+        viewUrl?: string
+        expiresAt?: string
+        error?: string
+      }
+      if (!response.ok || !payload.shareUrl) {
+        return { success: false, error: payload.error || `卡片服务返回 HTTP ${response.status}` }
+      }
+      return {
+        success: true,
+        cardId: payload.cardId,
+        shareUrl: payload.shareUrl,
+        viewUrl: payload.viewUrl,
+        expiresAt: payload.expiresAt,
+        qrCodeDataUrl: await QRCode.toDataURL(payload.shareUrl, {
+          width: 360,
+          margin: 2,
+          errorCorrectionLevel: 'M'
+        })
+      }
+    } catch (error) {
+      return { success: false, error: error instanceof Error ? error.message : String(error) }
+    }
+  }
+}