feat(lesson-preparation): 右栏详情面板容器

src/modules/lesson-preparation/components/detail-panel/detail-panel.tsx

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+"use client";
+
+import { useTranslations } from "next-intl";
+import { useLessonPlanEditor } from "../../hooks/use-lesson-plan-editor";
+import { DetailHead } from "./detail-head";
+import { DetailProps } from "./detail-props";
+import { QaEditor } from "./qa-editor";
+import { BlockRenderer } from "../../config/block-registry";
+import type { InteractionBlockData, LessonPlanNode } from "../../types";
+
+export function DetailPanel() {
+  const t = useTranslations("lessonPreparation");
+  const doc = useLessonPlanEditor((s) => s.doc);
+  const selectedNodeId = useLessonPlanEditor((s) => s.selectedNodeId);
+  const expandedNodeIds = useLessonPlanEditor((s) => s.expandedNodeIds);
+  const updateNode = useLessonPlanEditor((s) => s.updateNode);
+
+  const node = doc.nodes.find(
+    (n): n is LessonPlanNode => n.id === selectedNodeId && n.type !== "textbook_content",
+  );
+
+  if (!node) {
+    return (
+      <aside
+        style={{
+          borderLeft: "1px solid var(--border)",
+          background: "var(--background)",
+          padding: 24,
+          color: "var(--muted-foreground)",
+          fontSize: 13,
+        }}
+      >
+        选择左侧节点查看详情
+      </aside>
+    );
+  }
+
+  const isExpanded = expandedNodeIds.includes(node.id);
+
+  return (
+    <aside
+      style={{
+        borderLeft: "1px solid var(--border)",
+        background: "var(--background)",
+        overflowY: "auto",
+        display: "flex",
+        flexDirection: "column",
+      }}
+    >
+      <DetailHead node={node} isExpanded={isExpanded} />
+      <DetailProps node={node} />
+
+      <div style={{ flex: 1, padding: 20, overflowY: "auto" }}>
+        {node.type === "interaction" ? (
+          <QaEditor nodeId={node.id} data={node.data as InteractionBlockData} />
+        ) : (
+          <BlockRenderer
+            type={node.type}
+            blockId={node.id}
+            data={node.data}
+            onUpdate={(data) => updateNode(node.id, { data })}
+          />
+        )}
+      </div>
+
+      <div
+        style={{
+          borderTop: "1px solid var(--border)",
+          padding: "14px 20px",
+          background: "var(--muted)",
+        }}
+      >
+        <div
+          style={{
+            fontSize: 11,
+            fontWeight: 600,
+            color: "var(--lp-interaction)",
+            marginBottom: 8,
+          }}
+        >
+          ✦ {t("v4.detail.aiAssist")}
+        </div>
+        <div style={{ display: "flex", gap: 6, flexWrap: "wrap" }}>
+          <AiButton label={t("v4.detail.aiGenerateLayered")} />
+          <AiButton label={t("v4.detail.aiFillExpected")} />
+          <AiButton label={t("v4.detail.aiOptimizeFollowup")} />
+          <AiButton label={t("v4.detail.aiDifferentiation")} />
+        </div>
+      </div>
+    </aside>
+  );
+}
+
+function AiButton({ label }: { label: string }) {
+  return (
+    <button
+      type="button"
+      style={{
+        padding: "5px 10px",
+        border: "1px solid var(--border)",
+        background: "var(--background)",
+        borderRadius: 4,
+        fontSize: 11.5,
+        cursor: "pointer",
+        color: "var(--foreground)",
+      }}
+    >
+      {label}
+    </button>
+  );
+}