fix(deploy): sync public assets into standalone dist root

Next.js standalone output does not place public/ files at the dist root,
so rsync --delete was removing logo/favicon/fonts/images from production.
Copy public/ into dist after build so Nginx can serve them.

scripts/deploy.sh

@@ -136,6 +136,14 @@ cmd_build() {
         log "❌ 构建失败：$DIST_DIR 目录不存在"
         exit 1
     fi
+
+    # standalone 构建不会把 public/ 输出到 dist 根目录；
+    # Nginx 以 dist 作为站点根目录，因此手动同步 public 静态资源（logo、favicon、fonts、images 等）
+    if [[ -d "$PROJECT_ROOT/public" ]]; then
+        cp -R "$PROJECT_ROOT/public/." "$DIST_DIR/"
+        log "✅ public 静态资源已同步到 $DIST_DIR"
+    fi
+
     log "✅ 构建完成，产物大小: $(du -sh "$DIST_DIR" | cut -f1)"
 }