拆分宣传页视图并扩充 Mock 数据，合作订单支持获客员备注名并修复线索图片网格尺寸。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkan/Features/ScenicPromotion/Views/ScenicPromotionMediaToolbarView.swift

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+//
+//  ScenicPromotionMediaToolbarView.swift
+//  suixinkan
+//
+//  Created by Codex on 2026/7/2.
+//
+
+import SwiftUI
+
+/// 宣传页视频 / 照片切换工具条。
+struct ScenicPromotionMediaToolbarView: View {
+    let selectedMode: ScenicPromotionMediaMode
+    let onSelectMode: (ScenicPromotionMediaMode) -> Void
+
+    var body: some View {
+        HStack(spacing: 14) {
+            HStack(spacing: 0) {
+                ForEach(ScenicPromotionMediaMode.allCases) { mode in
+                    Button {
+                        onSelectMode(mode)
+                    } label: {
+                        HStack(spacing: 6) {
+                            Image(systemName: mode.iconName)
+                            Text(mode.title)
+                        }
+                        .font(.system(size: 14, weight: .bold))
+                        .foregroundStyle(selectedMode == mode ? .white : Color(hex: 0x1B4D91))
+                        .frame(width: 68, height: 34)
+                        .background(
+                            selectedMode == mode
+                            ? Color(hex: 0x0B79FF)
+                            : Color.clear
+                        )
+                        .clipShape(Capsule())
+                    }
+                    .buttonStyle(.plain)
+                }
+            }
+            .padding(3)
+            .background(.white.opacity(0.78), in: Capsule())
+            .overlay(Capsule().stroke(.white.opacity(0.9), lineWidth: 1))
+
+            Spacer()
+
+            Label("触屏切换视频/照片，左右滑动查看更多", systemImage: "hand.tap.fill")
+                .font(.system(size: 12, weight: .semibold))
+                .foregroundStyle(Color(hex: 0x124E97))
+                .lineLimit(1)
+                .minimumScaleFactor(0.58)
+        }
+    }
+}
+
+#if DEBUG
+#Preview("素材切换工具条") {
+    ScenicPromotionMediaToolbarView(selectedMode: .video, onSelectMode: { _ in })
+        .padding(.horizontal, 20)
+}
+#endif