refactor: RBAC权限系统重构 + UI组件拆分 + 测试修复 + 架构文档

- RBAC: 新增30个权限点、DataScope行级权限、requirePermission守卫，所有57+ Server Action接入权限校验
- UI拆分: exam-form(1623行→11文件)、textbook-reader(744行→7文件)，均降至300行以内
- 测试: 新增5个单元测试文件(19用例)，修复4个集成测试文件(38用例全部通过)
- 架构文档: 新增架构影响地图(004/005)、标准功能清单(006)、差距审计报告(007)
- 项目规则: 架构图优先规则，改码必同步图
- 安全: rehype-sanitize净化、AES加密API Key、权限路由守卫
- 无障碍: skip-link、aria-label、prefers-reduced-motion
- 性能: next/font优化、next/image、代码分割

src/modules/textbooks/components/knowledge-point-dialogs.tsx

@@ -0,0 +1,148 @@
+"use client"
+
+import type { KnowledgePoint } from "../types"
+import { Button } from "@/shared/components/ui/button"
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/shared/components/ui/dialog"
+import { Input } from "@/shared/components/ui/input"
+import { Label } from "@/shared/components/ui/label"
+import { Textarea } from "@/shared/components/ui/textarea"
+import { CreateQuestionDialog } from "@/modules/questions/components/create-question-dialog"
+
+interface KnowledgePointDialogsProps {
+  // Create KP dialog
+  createDialogOpen: boolean
+  setCreateDialogOpen: (open: boolean) => void
+  selectedText: string
+  isCreating: boolean
+  onCreateKnowledgePoint: (formData: FormData) => Promise<boolean | void>
+
+  // Edit KP dialog
+  editKpDialogOpen: boolean
+  setEditKpDialogOpen: (open: boolean) => void
+  editingKp: KnowledgePoint | null
+  isUpdatingKp: boolean
+  onUpdateKnowledgePoint: (formData: FormData) => Promise<void>
+
+  // Question dialog
+  questionDialogOpen: boolean
+  setQuestionDialogOpen: (open: boolean) => void
+  targetKpForQuestion: KnowledgePoint | null
+}
+
+export function KnowledgePointDialogs({
+  createDialogOpen,
+  setCreateDialogOpen,
+  selectedText,
+  isCreating,
+  onCreateKnowledgePoint,
+  editKpDialogOpen,
+  setEditKpDialogOpen,
+  editingKp,
+  isUpdatingKp,
+  onUpdateKnowledgePoint,
+  questionDialogOpen,
+  setQuestionDialogOpen,
+  targetKpForQuestion,
+}: KnowledgePointDialogsProps) {
+  return (
+    <>
+      <Dialog open={createDialogOpen} onOpenChange={setCreateDialogOpen}>
+        <DialogContent>
+          <DialogHeader>
+            <DialogTitle>添加知识点</DialogTitle>
+            <DialogDescription>
+              从选中的文本创建知识点。
+            </DialogDescription>
+          </DialogHeader>
+          <form action={onCreateKnowledgePoint as (formData: FormData) => void}>
+            <div className="grid gap-4 py-4">
+              <div className="grid gap-2">
+                <Label htmlFor="name">名称</Label>
+                <Input id="name" name="name" defaultValue={selectedText} required />
+              </div>
+              <div className="grid gap-2">
+                <Label htmlFor="description">描述（可选）</Label>
+                <Textarea id="description" name="description" placeholder="请输入描述..." />
+              </div>
+            </div>
+            <DialogFooter>
+              <Button type="button" variant="outline" onClick={() => setCreateDialogOpen(false)} disabled={isCreating}>
+                取消
+              </Button>
+              <Button type="submit" disabled={isCreating}>
+                {isCreating ? "创建中..." : "创建"}
+              </Button>
+            </DialogFooter>
+          </form>
+        </DialogContent>
+      </Dialog>
+
+      <Dialog open={editKpDialogOpen} onOpenChange={setEditKpDialogOpen}>
+        <DialogContent>
+          <DialogHeader>
+            <DialogTitle>编辑知识点</DialogTitle>
+            <DialogDescription>
+              修改知识点的名称和描述。
+            </DialogDescription>
+          </DialogHeader>
+          <form action={onUpdateKnowledgePoint}>
+            <div className="grid gap-4 py-4">
+              <div className="grid gap-2">
+                <Label htmlFor="edit-name">显示名称</Label>
+                <Input id="edit-name" name="name" defaultValue={editingKp?.name} required />
+              </div>
+              <div className="grid gap-2">
+                <Label htmlFor="edit-description">描述（可选）</Label>
+                <Textarea id="edit-description" name="description" defaultValue={editingKp?.description || ""} placeholder="请输入描述..." />
+              </div>
+
+              <div className="space-y-2 border rounded-md p-3 bg-muted/20">
+                <div className="flex items-center justify-between">
+                  <Label htmlFor="edit-anchorText" className="text-muted-foreground text-xs flex items-center gap-1">
+                    高级：关联文本 (影响文中高亮)
+                  </Label>
+                </div>
+                <div className="pt-2">
+                  <Input
+                    key={editingKp?.id}
+                    id="edit-anchorText"
+                    name="anchorText"
+                    defaultValue={editingKp?.anchorText || editingKp?.name}
+                    className="text-sm font-mono"
+                    required
+                  />
+                  <p className="text-[10px] text-muted-foreground mt-1">
+                    修改此字段会改变文中被高亮匹配的文字。通常保持与原文一致。
+                  </p>
+                </div>
+              </div>
+            </div>
+            <DialogFooter>
+              <Button type="button" variant="outline" onClick={() => setEditKpDialogOpen(false)} disabled={isUpdatingKp}>
+                取消
+              </Button>
+              <Button type="submit" disabled={isUpdatingKp}>
+                {isUpdatingKp ? "保存中..." : "保存"}
+              </Button>
+            </DialogFooter>
+          </form>
+        </DialogContent>
+      </Dialog>
+
+      <CreateQuestionDialog
+        open={questionDialogOpen}
+        onOpenChange={setQuestionDialogOpen}
+        defaultKnowledgePointIds={targetKpForQuestion ? [targetKpForQuestion.id] : []}
+        defaultContent={targetKpForQuestion ? `Please explain the knowledge point: ${targetKpForQuestion.name}` : ""}
+        defaultType="text"
+      />
+    </>
+  )
+}