refactor(契约): 判题状态码收进契约唯一一份，并收紧 18 处 as any

- 状态码常量与 judgeStatusSchema 移到 packages/contract/src/judge-status.ts，
  后端 judge/status.ts 只再导出；前端 SubmissionStatus 枚举加编译期断言对齐契约
  （实测改坏一个码会当场类型检查失败）
- 类型逃逸 22 处降到 4 处：collab/handler、pagination、configUpdate、
  ExerciseManager、ProblemSubmission、pk.vue tooltip；剩下的是词云插件无类型、
  生成的 .d.ts、skulpt 和 TextEditor

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

packages/contract/src/index.ts

@@ -8,6 +8,7 @@ export * from "./common"
 export * from "./content"
 export * from "./contest"
 export * from "./flowchart"
+export * from "./judge-status"
 export * from "./language"
 export * from "./problem"
 export * from "./problemset"

packages/contract/src/judge-status.ts

@@ -0,0 +1,32 @@
+import { z } from "zod"
+
+/**
+ * 判题状态码 —— **前后端唯一的一份**。
+ *
+ * 这些整数是落库的值：12 万条历史提交的 `submission.result` 就是它们，判题沙箱回的
+ * 也是这套编码，所以只能新增、不能改已有的含义。后端 `judge/status.ts` 从这里再导出，
+ * 前端 `utils/constants.ts` 的 `SubmissionStatus` 用类型断言逐条对齐这里。
+ */
+export const JudgeStatus = {
+  COMPILE_ERROR: -2,
+  WRONG_ANSWER: -1,
+  ACCEPTED: 0,
+  CPU_TIME_LIMIT_EXCEEDED: 1,
+  REAL_TIME_LIMIT_EXCEEDED: 2,
+  MEMORY_LIMIT_EXCEEDED: 3,
+  RUNTIME_ERROR: 4,
+  SYSTEM_ERROR: 5,
+  PENDING: 6,
+  JUDGING: 7,
+  PARTIALLY_ACCEPTED: 8,
+  AST_CHECK_FAILED: 10,
+} as const
+
+export type JudgeStatusValue = (typeof JudgeStatus)[keyof typeof JudgeStatus]
+
+// 同名的类型：原来契约里就有 `type JudgeStatus`（各处按类型引用），值与类型同名合并
+export type JudgeStatus = JudgeStatusValue
+
+export const judgeStatusSchema = z.literal(
+  Object.values(JudgeStatus) as [JudgeStatusValue, ...JudgeStatusValue[]],
+)

packages/contract/src/submission.ts

@@ -1,23 +1,9 @@
 import { z } from "zod"
 
 import { paginatedSchema } from "./common"
+import { judgeStatusSchema, type JudgeStatus } from "./judge-status"
 import { problemLanguageSchema } from "./language"
 
-export const judgeStatusSchema = z.union([
-  z.literal(-2),
-  z.literal(-1),
-  z.literal(0),
-  z.literal(1),
-  z.literal(2),
-  z.literal(3),
-  z.literal(4),
-  z.literal(5),
-  z.literal(6),
-  z.literal(7),
-  z.literal(8),
-  z.literal(10),
-])
-
 /**
  * 判题机原始输出（`submission.info` 的 JSONB 原文）。**只是类型，不作运行时校验。**
  *
@@ -397,7 +383,6 @@ export const formatCodeRequestSchema = z.object({
 
 export const formatCodeResponseSchema = z.object({ code: z.string() })
 
-export type JudgeStatus = z.infer<typeof judgeStatusSchema>
 export type StatisticInfo = z.infer<typeof statisticInfoSchema>
 export type CreateSubmissionRequest = z.infer<
   typeof createSubmissionRequestSchema