feat: 补全剩余 6 个 StreamField Block 前端渲染 (ProductCard/Pricing/Timeline/Team/TechStack/Video)

- types/wagtail.ts 新增对应 6 个 Block 值类型接口及 StreamFieldBlock 联合类型分支
- 新建 6 个渲染组件：ProductCardGrid/Pricing/Timeline/Team/TechStack/Video，风格与既有 Block 一致
- BlockRenderer.tsx 映射表接入新组件，key 与后端 COMMON_BLOCKS 保持一致
- lint/build 均验证通过

blocks/team/Team.tsx

@@ -0,0 +1,40 @@
+import Image from "next/image";
+import type { TeamBlockValue } from "@/types/wagtail";
+
+export default function Team({ value }: { value: TeamBlockValue }) {
+  return (
+    <section className="py-24">
+      <div className="mx-auto max-w-7xl px-6">
+        {value.heading && (
+          <h2 className="mb-16 text-4xl font-bold text-slate-900">{value.heading}</h2>
+        )}
+        <div className="grid gap-8 sm:grid-cols-2 lg:grid-cols-4">
+          {value.members?.map((member) => (
+            <div key={member.id} className="text-center">
+              {member.photo ? (
+                <Image
+                  src={member.photo.url}
+                  alt={member.photo.title}
+                  width={200}
+                  height={200}
+                  className="mx-auto mb-4 h-40 w-40 rounded-full object-cover"
+                />
+              ) : (
+                <div className="mx-auto mb-4 h-40 w-40 rounded-full bg-slate-100" />
+              )}
+              <div className="text-lg font-semibold text-slate-900">
+                {member.name}
+              </div>
+              {member.role && (
+                <div className="mb-2 text-sm text-primary">{member.role}</div>
+              )}
+              {member.bio && (
+                <p className="text-sm text-slate-600">{member.bio}</p>
+              )}
+            </div>
+          ))}
+        </div>
+      </div>
+    </section>
+  );
+}