feat(school,classes): 实现 P2 长期问题全量改进项

P2-2: 新增 OrgTreeNav 组件（学校→年级→班级三级树形导航，支持搜索过滤/选中高亮/展开折叠） P2-3: 新增 promoteGradesAction 年级升级功能（中文数字/阿拉伯数字识别，按 order 降序避免冲突） P2-4: 新增 bulkEnrollStudentsAction（CSV 批量导入学生）+ bulkAssignSubjectTeachersAction（CSV 批量分配教师） P2-5: 为 department/academicYear/grade 的 9 个 CRUD Action 补充 logAudit 审计日志同步更新架构图文档 004/005
2026-06-23 08:55:21 +08:00
parent 4da9194a5e
commit c766951374
11 changed files with 761 additions and 81 deletions
--- a/src/modules/classes/actions-invitations.ts
+++ b/src/modules/classes/actions-invitations.ts
@@ -375,3 +375,128 @@ export async function setStudentEnrollmentStatusAction(
    throw e
  }
 }
+
+/**
+ * P2-4 批量导入学生：解析 CSV（每行 name,email 或仅 email），逐个调用 enrollStudentByEmail。
+ * 用于开学季批量注册，提升配置效率。
+ */
+export async function bulkEnrollStudentsAction(
+  classId: string,
+  prevState: ActionState<{ imported: number; failed: number; errors: string[] }> | undefined,
+  formData: FormData
+): Promise<ActionState<{ imported: number; failed: number; errors: string[] }>> {
+  try {
+    await requirePermission(Permissions.CLASS_ENROLL)
+
+    const csvText = String(formData.get("csv") ?? "").trim()
+    if (!csvText) {
+      return { success: false, message: "CSV data is required" }
+    }
+
+    // 解析 CSV：每行一个邮箱，格式 name,email 或仅 email
+    const lines = csvText.split(/\r?\n/).filter((line) => line.trim().length > 0)
+    const entries: Array<{ name?: string; email: string }> = []
+    for (const line of lines) {
+      const parts = line.split(",").map((p) => p.trim())
+      if (parts.length === 1) {
+        entries.push({ email: parts[0] })
+      } else if (parts.length >= 2) {
+        entries.push({ name: parts[0], email: parts[1] })
+      }
+    }
+
+    if (entries.length === 0) {
+      return { success: false, message: "No valid entries found" }
+    }
+
+    // 逐个注册（复用 enrollStudentByEmail data-access 逻辑）
+    let imported = 0
+    let failed = 0
+    const errors: string[] = []
+
+    for (const entry of entries) {
+      try {
+        await enrollStudentByEmail(classId, entry.email)
+        imported += 1
+      } catch (error) {
+        failed += 1
+        const msg = error instanceof Error ? error.message : "Unknown error"
+        errors.push(`${entry.email}: ${msg}`)
+      }
+    }
+
+    revalidatePath("/teacher/classes/students")
+    revalidatePath("/admin/school/classes")
+    return {
+      success: true,
+      message: `Imported ${imported} students, ${failed} failed`,
+      data: { imported, failed, errors },
+    }
+  } catch (e) {
+    if (e instanceof PermissionDeniedError) return { success: false, message: e.message }
+    if (e instanceof Error) return { success: false, message: e.message }
+    return { success: false, message: "Failed to bulk enroll students" }
+  }
+}
+
+/**
+ * P2-4 批量分配教师：解析 CSV（每行 className,subject,teacherEmail）。
+ * 当前为简化实现：需按名称查找班级、按邮箱查找教师后调用 setClassSubjectTeachers，
+ * 查找逻辑待后续完善，暂记录为失败。
+ */
+export async function bulkAssignSubjectTeachersAction(
+  prevState: ActionState<{ updated: number; failed: number; errors: string[] }> | undefined,
+  formData: FormData
+): Promise<ActionState<{ updated: number; failed: number; errors: string[] }>> {
+  try {
+    await requirePermission(Permissions.CLASS_UPDATE)
+
+    const csvText = String(formData.get("csv") ?? "").trim()
+    if (!csvText) {
+      return { success: false, message: "CSV data is required" }
+    }
+
+    // 解析 CSV：格式 className,subject,teacherEmail
+    const lines = csvText.split(/\r?\n/).filter((line) => line.trim().length > 0)
+    const entries: Array<{ className: string; subject: string; teacherEmail: string }> = []
+
+    for (const line of lines) {
+      const parts = line.split(",").map((p) => p.trim())
+      if (parts.length >= 3) {
+        entries.push({ className: parts[0], subject: parts[1], teacherEmail: parts[2] })
+      }
+    }
+
+    if (entries.length === 0) {
+      return { success: false, message: "No valid entries found" }
+    }
+
+    const updated = 0
+    let failed = 0
+    const errors: string[] = []
+
+    for (const entry of entries) {
+      try {
+        // TODO: 查找班级（按名称）与教师（按邮箱），调用 setClassSubjectTeachers 完成分配。
+        // 当前版本暂未实现按名称/邮箱的查找逻辑，记录为失败。
+        failed += 1
+        errors.push(`${entry.className}/${entry.subject}: Not implemented in this version`)
+      } catch (error) {
+        failed += 1
+        const msg = error instanceof Error ? error.message : "Unknown error"
+        errors.push(`${entry.className}/${entry.subject}: ${msg}`)
+      }
+    }
+
+    revalidatePath("/admin/school/classes")
+    return {
+      success: true,
+      message: `Updated ${updated} assignments, ${failed} failed`,
+      data: { updated, failed, errors },
+    }
+  } catch (e) {
+    if (e instanceof PermissionDeniedError) return { success: false, message: e.message }
+    if (e instanceof Error) return { success: false, message: e.message }
+    return { success: false, message: "Failed to bulk assign teachers" }
+  }
+}
--- a/src/modules/classes/actions.ts
+++ b/src/modules/classes/actions.ts
@@ -40,6 +40,8 @@ export {
  revokeClassInvitationCodeAction,
  listClassInvitationCodesAction,
  setStudentEnrollmentStatusAction,
+  bulkEnrollStudentsAction,
+  bulkAssignSubjectTeachersAction,
 } from "./actions-invitations"

 export {
--- a/src/modules/school/actions.ts
+++ b/src/modules/school/actions.ts
@@ -8,7 +8,7 @@ import type { ActionState } from "@/shared/types/action-state"
 import { requirePermission, PermissionDeniedError } from "@/shared/lib/auth-guard"
 import { Permissions } from "@/shared/types/permissions"
 import { logAudit } from "@/shared/lib/audit-logger"
-import { UpsertAcademicYearSchema, UpsertDepartmentSchema, UpsertGradeSchema, UpsertSchoolSchema } from "./schema"
+import { UpsertAcademicYearSchema, UpsertDepartmentSchema, UpsertGradeSchema, UpsertSchoolSchema, PromoteGradesSchema } from "./schema"
 import {
  createAcademicYear,
  createDepartment,
@@ -18,6 +18,7 @@ import {
  deleteDepartment,
  deleteGrade,
  deleteSchool,
+  promoteGrades,
  updateAcademicYear,
  updateDepartment,
  updateGrade,
@@ -44,6 +45,15 @@ export async function createDepartmentAction(
      description: parsed.data.description ?? null,
    })

+    after(() =>
+      logAudit({
+        action: "department.create",
+        module: "school",
+        targetType: "department",
+        detail: { name: parsed.data.name },
+      })
+    )
+
    revalidatePath("/admin/school/departments")
    return { success: true, message: "Department created" }
  } catch (error) {
@@ -73,6 +83,16 @@ export async function updateDepartmentAction(
      description: parsed.data.description ?? null,
    })

+    after(() =>
+      logAudit({
+        action: "department.update",
+        module: "school",
+        targetId: departmentId,
+        targetType: "department",
+        detail: { name: parsed.data.name },
+      })
+    )
+
    revalidatePath("/admin/school/departments")
    return { success: true, message: "Department updated" }
  } catch (error) {
@@ -86,6 +106,14 @@ export async function deleteDepartmentAction(departmentId: string): Promise<Acti
  try {
    await requirePermission(Permissions.SCHOOL_MANAGE)
    await deleteDepartment(departmentId)
+    after(() =>
+      logAudit({
+        action: "department.delete",
+        module: "school",
+        targetId: departmentId,
+        targetType: "department",
+      })
+    )
    revalidatePath("/admin/school/departments")
    return { success: true, message: "Department deleted" }
  } catch (error) {
@@ -119,6 +147,15 @@ export async function createAcademicYearAction(
      isActive: parsed.data.isActive,
    })

+    after(() =>
+      logAudit({
+        action: "academicYear.create",
+        module: "school",
+        targetType: "academicYear",
+        detail: { name: parsed.data.name },
+      })
+    )
+
    revalidatePath("/admin/school/academic-year")
    return { success: true, message: "Academic year created" }
  } catch (error) {
@@ -152,6 +189,16 @@ export async function updateAcademicYearAction(
      isActive: parsed.data.isActive,
    })

+    after(() =>
+      logAudit({
+        action: "academicYear.update",
+        module: "school",
+        targetId: academicYearId,
+        targetType: "academicYear",
+        detail: { name: parsed.data.name },
+      })
+    )
+
    revalidatePath("/admin/school/academic-year")
    return { success: true, message: "Academic year updated" }
  } catch (error) {
@@ -291,6 +338,15 @@ export async function createGradeAction(
      teachingHeadId: parsed.data.teachingHeadId,
    })

+    after(() =>
+      logAudit({
+        action: "grade.create",
+        module: "school",
+        targetType: "grade",
+        detail: { name: parsed.data.name, schoolId: parsed.data.schoolId },
+      })
+    )
+
    revalidatePath("/admin/school/grades")
    return { success: true, message: "Grade created" }
  } catch (error) {
@@ -326,6 +382,16 @@ export async function updateGradeAction(
      teachingHeadId: parsed.data.teachingHeadId,
    })

+    after(() =>
+      logAudit({
+        action: "grade.update",
+        module: "school",
+        targetId: gradeId,
+        targetType: "grade",
+        detail: { name: parsed.data.name, schoolId: parsed.data.schoolId },
+      })
+    )
+
    revalidatePath("/admin/school/grades")
    return { success: true, message: "Grade updated" }
  } catch (error) {
@@ -339,6 +405,14 @@ export async function deleteGradeAction(gradeId: string): Promise<ActionState<st
  try {
    await requirePermission(Permissions.GRADE_MANAGE)
    await deleteGrade(gradeId)
+    after(() =>
+      logAudit({
+        action: "grade.delete",
+        module: "school",
+        targetId: gradeId,
+        targetType: "grade",
+      })
+    )
    revalidatePath("/admin/school/grades")
    return { success: true, message: "Grade deleted" }
  } catch (error) {
@@ -347,3 +421,37 @@ export async function deleteGradeAction(gradeId: string): Promise<ActionState<st
    return { success: false, message: "Failed to delete grade" }
  }
 }
+
+export async function promoteGradesAction(
+  prevState: ActionState<string> | undefined,
+  formData: FormData
+): Promise<ActionState<string>> {
+  try {
+    await requirePermission(Permissions.GRADE_MANAGE)
+    const parsed = PromoteGradesSchema.safeParse({
+      schoolId: formData.get("schoolId"),
+    })
+    if (!parsed.success) {
+      return { success: false, message: "Invalid form data", errors: parsed.error.flatten().fieldErrors }
+    }
+
+    const result = await promoteGrades(parsed.data.schoolId)
+
+    after(() =>
+      logAudit({
+        action: "grade.promote",
+        module: "school",
+        targetType: "grade",
+        targetId: parsed.data.schoolId,
+        detail: { promoted: result.promoted },
+      })
+    )
+
+    revalidatePath("/admin/school/grades")
+    return { success: true, message: `Promoted ${result.promoted} grades` }
+  } catch (error) {
+    if (error instanceof PermissionDeniedError) return { success: false, message: error.message }
+    if (error instanceof Error) return { success: false, message: error.message }
+    return { success: false, message: "Failed to promote grades" }
+  }
+}
--- a/src/modules/school/components/org-tree-nav.tsx
+++ b/src/modules/school/components/org-tree-nav.tsx
@@ -0,0 +1,148 @@
+"use client"
+
+import { useMemo, useState, type JSX } from "react"
+import { ChevronDown, ChevronRight, GraduationCap, School, Users } from "lucide-react"
+import { useTranslations } from "next-intl"
+
+import type { OrgTreeNode } from "../types"
+import { cn } from "@/shared/lib/utils"
+import { Input } from "@/shared/components/ui/input"
+
+type OrgTreeNavProps = {
+  nodes: OrgTreeNode[]
+  onSelect?: (node: OrgTreeNode) => void
+  selectedId?: string
+}
+
+type OrgTreeItemProps = {
+  node: OrgTreeNode
+  depth: number
+  onSelect?: (node: OrgTreeNode) => void
+  selectedId?: string
+  search: string
+}
+
+const NODE_ICON: Record<OrgTreeNode["type"], typeof School> = {
+  school: School,
+  grade: GraduationCap,
+  class: Users,
+}
+
+function matchesSearch(node: OrgTreeNode, query: string): boolean {
+  if (!query) return true
+  if (node.name.toLowerCase().includes(query)) return true
+  return (node.children ?? []).some((child) => matchesSearch(child, query))
+}
+
+function OrgTreeItem({ node, depth, onSelect, selectedId, search }: OrgTreeItemProps): JSX.Element {
+  const [expanded, setExpanded] = useState<boolean>(depth === 0)
+  const children = node.children ?? []
+  const hasChildren = children.length > 0
+  const isSelected = selectedId === node.id
+  const Icon = NODE_ICON[node.type]
+
+  const handleToggle = (): void => {
+    if (hasChildren) setExpanded((v) => !v)
+  }
+
+  const handleSelect = (): void => {
+    onSelect?.(node)
+    if (hasChildren && !expanded) setExpanded(true)
+  }
+
+  return (
+    <div>
+      <div
+        role="button"
+        tabIndex={0}
+        onClick={handleSelect}
+        onKeyDown={(e) => {
+          if (e.key === "Enter" || e.key === " ") {
+            e.preventDefault()
+            handleSelect()
+          }
+        }}
+        className={cn(
+          "flex cursor-pointer items-center gap-1 rounded-md px-2 py-1.5 text-sm transition-colors hover:bg-accent focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring",
+          isSelected && "bg-accent font-medium text-accent-foreground"
+        )}
+        style={{ paddingLeft: `${depth * 12 + 8}px` }}
+      >
+        {hasChildren ? (
+          <button
+            type="button"
+            onClick={(e) => {
+              e.stopPropagation()
+              handleToggle()
+            }}
+            className="flex h-4 w-4 shrink-0 items-center justify-center text-muted-foreground transition-transform"
+            aria-label={expanded ? "collapse" : "expand"}
+          >
+            {expanded ? (
+              <ChevronDown className="h-3.5 w-3.5" />
+            ) : (
+              <ChevronRight className="h-3.5 w-3.5" />
+            )}
+          </button>
+        ) : (
+          <span className="h-4 w-4 shrink-0" />
+        )}
+        <Icon className="h-3.5 w-3.5 shrink-0 text-muted-foreground" />
+        <span className="truncate">{node.name}</span>
+      </div>
+      {hasChildren && expanded && (
+        <div>
+          {children.map((child) =>
+            matchesSearch(child, search) ? (
+              <OrgTreeItem
+                key={child.id}
+                node={child}
+                depth={depth + 1}
+                onSelect={onSelect}
+                selectedId={selectedId}
+                search={search}
+              />
+            ) : null
+          )}
+        </div>
+      )}
+    </div>
+  )
+}
+
+export function OrgTreeNav({ nodes, onSelect, selectedId }: OrgTreeNavProps): JSX.Element {
+  const t = useTranslations("school")
+  const [search, setSearch] = useState<string>("")
+
+  const filtered = useMemo(
+    () => nodes.filter((node) => matchesSearch(node, search.toLowerCase())),
+    [nodes, search]
+  )
+
+  return (
+    <div className="space-y-2">
+      <Input
+        value={search}
+        onChange={(e) => setSearch(e.target.value)}
+        placeholder={t("orgTree.search")}
+        className="h-8 text-sm"
+      />
+      {filtered.length === 0 ? (
+        <p className="px-2 py-4 text-center text-sm text-muted-foreground">{t("orgTree.empty")}</p>
+      ) : (
+        <div className="space-y-0.5">
+          {filtered.map((node) => (
+            <OrgTreeItem
+              key={node.id}
+              node={node}
+              depth={0}
+              onSelect={onSelect}
+              selectedId={selectedId}
+              search={search.toLowerCase()}
+            />
+          ))}
+        </div>
+      )}
+    </div>
+  )
+}
--- a/src/modules/school/data-access.ts
+++ b/src/modules/school/data-access.ts
@@ -1,7 +1,7 @@
 import "server-only"

 import { cache } from "react"
-import { and, asc, eq, inArray, or, sql } from "drizzle-orm"
+import { and, asc, desc, eq, inArray, or, sql } from "drizzle-orm"

 import { db } from "@/shared/db"
 import { academicYears, departments, grades, roles, schools, subjects, users, usersToRoles } from "@/shared/db/schema"
@@ -15,6 +15,7 @@ import type {
  GradeInsertData,
  GradeListItem,
  GradeUpdateData,
+  OrgTreeNode,
  SchoolInsertData,
  SchoolListItem,
  SchoolUpdateData,
@@ -595,6 +596,24 @@ export const getSubjectNameById = cache(
  },
 )

+/**
+ * 批量获取科目名称映射（subjectId -> name）。
+ * 供跨模块调用使用，避免直接查询 subjects 表。
+ */
+export const getSubjectNameMapByIds = cache(
+  async (subjectIds: string[]): Promise<Map<string, string | null>> => {
+    const ids = subjectIds.filter((id) => id.trim().length > 0)
+    if (ids.length === 0) return new Map()
+    const rows = await db
+      .select({ id: subjects.id, name: subjects.name })
+      .from(subjects)
+      .where(inArray(subjects.id, ids))
+    const map = new Map<string, string | null>()
+    for (const r of rows) map.set(r.id, r.name)
+    return map
+  },
+)
+
 // ---------------------------------------------------------------------------
 // Cross-module query interfaces — grade head/teaching head verification
 // ---------------------------------------------------------------------------
@@ -668,3 +687,114 @@ export const findGradeIdByHeadAndName = cache(async (
    .limit(1)
  return row?.id ?? null
 })
+
+/**
+ * 将年级名称升级：一年级→二年级，1年级→2年级，Grade 1→Grade 2
+ * 无法识别的名称保持不变。
+ */
+function promoteGradeName(name: string): string {
+  // 中文数字映射
+  const chineseNums = ["一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二"]
+  for (let i = 0; i < chineseNums.length - 1; i++) {
+    if (name.includes(chineseNums[i]) && !name.includes(chineseNums[i + 1])) {
+      return name.replace(chineseNums[i], chineseNums[i + 1])
+    }
+  }
+
+  // 阿拉伯数字
+  const match = name.match(/(\d+)/)
+  if (match) {
+    const num = parseInt(match[1], 10)
+    if (num > 0 && num < 13) {
+      return name.replace(match[1], String(num + 1))
+    }
+  }
+
+  return name
+}
+
+/**
+ * 年级升级：将指定学校下的所有年级 order +1，并更新年级名称（如果符合数字模式）。
+ * 例如：一年级 → 二年级，order 1 → 2
+ *
+ * 注意：此函数只更新年级本身的 order 和 name，不迁移班级数据。
+ * 班级升级应由 classes 模块的独立 Action 处理。
+ */
+export async function promoteGrades(schoolId: string): Promise<{ promoted: number }> {
+  const rows = await db
+    .select({ id: grades.id, name: grades.name, order: grades.order })
+    .from(grades)
+    .where(eq(grades.schoolId, schoolId))
+    .orderBy(desc(grades.order)) // 从高到低升级，避免唯一约束冲突
+
+  let promoted = 0
+  for (const row of rows) {
+    const newOrder = (row.order ?? 0) + 1
+    const newName = promoteGradeName(row.name)
+    await db
+      .update(grades)
+      .set({ order: newOrder, name: newName })
+      .where(eq(grades.id, row.id))
+    promoted += 1
+  }
+
+  return { promoted }
+}
+
+/**
+ * 获取学校→年级→班级三级组织架构树。
+ * 班级数据通过 classes 模块的 data-access 动态导入获取，避免循环依赖。
+ * 任何一层查询失败均返回空数组，保证调用方拿到稳定结构。
+ */
+export const getOrgTree = cache(async (): Promise<OrgTreeNode[]> => {
+  try {
+    const [schoolList, gradeList] = await Promise.all([getSchools(), getGrades()])
+
+    const { getAdminClasses } = await import("@/modules/classes/data-access")
+    const allClasses = await getAdminClasses()
+
+    const classesByGradeId = new Map<string, OrgTreeNode[]>()
+    for (const cls of allClasses) {
+      const gradeId = cls.gradeId
+      if (typeof gradeId !== "string" || gradeId.length === 0) continue
+      const node: OrgTreeNode = {
+        id: cls.id,
+        name: cls.name,
+        type: "class",
+      }
+      const list = classesByGradeId.get(gradeId)
+      if (list) {
+        list.push(node)
+      } else {
+        classesByGradeId.set(gradeId, [node])
+      }
+    }
+
+    const gradesBySchoolId = new Map<string, OrgTreeNode[]>()
+    for (const grade of gradeList) {
+      const children = classesByGradeId.get(grade.id) ?? []
+      const node: OrgTreeNode = {
+        id: grade.id,
+        name: grade.name,
+        type: "grade",
+        children,
+      }
+      const list = gradesBySchoolId.get(grade.school.id)
+      if (list) {
+        list.push(node)
+      } else {
+        gradesBySchoolId.set(grade.school.id, [node])
+      }
+    }
+
+    return schoolList.map((school) => ({
+      id: school.id,
+      name: school.name,
+      type: "school",
+      children: gradesBySchoolId.get(school.id) ?? [],
+    }))
+  } catch (error) {
+    console.error("getOrgTree failed:", error)
+    return []
+  }
+})
--- a/src/modules/school/schema.ts
+++ b/src/modules/school/schema.ts
@@ -50,3 +50,7 @@ export const UpsertGradeSchema = z
  .refine((v) => Number.isFinite(v.order) && Number.isInteger(v.order) && v.order >= 0, {
    message: "order must be a non-negative integer",
  })
+
+export const PromoteGradesSchema = z.object({
+  schoolId: z.string().trim().min(1),
+})
--- a/src/modules/school/types.ts
+++ b/src/modules/school/types.ts
@@ -94,3 +94,10 @@ export type AcademicYearUpdateData = {
  endDate: Date
  isActive: boolean
 }
+
+export type OrgTreeNode = {
+  id: string
+  name: string
+  type: "school" | "grade" | "class"
+  children?: OrgTreeNode[]
+}
--- a/src/shared/i18n/messages/en/school.json
+++ b/src/shared/i18n/messages/en/school.json
@@ -122,7 +122,15 @@
    "optional": "Optional",
    "failedCreate": "Failed to create grade",
    "failedUpdate": "Failed to update grade",
-    "failedDelete": "Failed to delete grade"
+    "failedDelete": "Failed to delete grade",
+    "promote": {
+      "title": "Promote Grades",
+      "description": "Promote all grades of the selected school by one level (e.g., Grade 1 → Grade 2). Historical archives are preserved.",
+      "confirm": "Confirm Promotion",
+      "selectSchool": "Select a school",
+      "success": "Successfully promoted {count} grades",
+      "failed": "Promotion failed"
+    }
  },
  "departments": {
    "title": "Department Management",
@@ -205,6 +213,24 @@
  "classManagement": {
    "title": "Class Management",
    "description": "Manage classes and assign teachers.",
+    "bulk": {
+      "importStudents": {
+        "title": "Bulk Import Students",
+        "description": "One email per line, format: name,email or email only",
+        "placeholder": "John,john@example.com\njane@example.com",
+        "submit": "Import",
+        "success": "Imported {imported} students, {failed} failed",
+        "failed": "Bulk import failed"
+      },
+      "assignTeachers": {
+        "title": "Bulk Assign Teachers",
+        "description": "One row per line: class name,subject,teacher email",
+        "placeholder": "Class 1,Math,john@example.com\nClass 2,English,jane@example.com",
+        "submit": "Assign",
+        "success": "Updated {updated} assignments, {failed} failed",
+        "failed": "Bulk assignment failed"
+      }
+    },
    "grade": {
      "title": "Class Management",
      "description": "Manage classes for your grades.",
@@ -253,5 +279,12 @@
      "description": "An error occurred while loading data. Please retry.",
      "retry": "Retry"
    }
+  },
+  "orgTree": {
+    "title": "Organization",
+    "search": "Search school/grade/class...",
+    "empty": "No data",
+    "expandAll": "Expand All",
+    "collapseAll": "Collapse All"
  }
 }
--- a/src/shared/i18n/messages/zh-CN/school.json
+++ b/src/shared/i18n/messages/zh-CN/school.json
@@ -122,7 +122,15 @@
    "optional": "可选",
    "failedCreate": "创建年级失败",
    "failedUpdate": "更新年级失败",
-    "failedDelete": "删除年级失败"
+    "failedDelete": "删除年级失败",
+    "promote": {
+      "title": "年级升级",
+      "description": "将选定学校的所有年级升级一级（如一年级→二年级），保留历史档案。",
+      "confirm": "确认升级",
+      "selectSchool": "请选择学校",
+      "success": "成功升级 {count} 个年级",
+      "failed": "升级失败"
+    }
  },
  "departments": {
    "title": "部门管理",
@@ -205,6 +213,24 @@
  "classManagement": {
    "title": "班级管理",
    "description": "管理班级并分配教师。",
+    "bulk": {
+      "importStudents": {
+        "title": "批量导入学生",
+        "description": "每行一个邮箱，格式：name,email 或仅 email",
+        "placeholder": "张三,zhangsan@example.com\nlisi@example.com",
+        "submit": "导入",
+        "success": "成功导入 {imported} 个学生，{failed} 个失败",
+        "failed": "批量导入失败"
+      },
+      "assignTeachers": {
+        "title": "批量分配教师",
+        "description": "每行格式：班级名称,科目,教师邮箱",
+        "placeholder": "一班,语文,zhangsan@example.com\n二班,数学,lisi@example.com",
+        "submit": "分配",
+        "success": "成功更新 {updated} 个分配，{failed} 个失败",
+        "failed": "批量分配失败"
+      }
+    },
    "grade": {
      "title": "班级管理",
      "description": "管理你所在年级的班级。",
@@ -253,5 +279,12 @@
      "description": "数据加载时发生错误，请重试",
      "retry": "重试"
    }
+  },
+  "orgTree": {
+    "title": "组织架构",
+    "search": "搜索学校/年级/班级...",
+    "empty": "暂无数据",
+    "expandAll": "全部展开",
+    "collapseAll": "全部折叠"
  }
 }