配置改为数据库存储

将运行时 JSON 配置迁入 app_config_entries，启动时从文件导入并删除源文件。

apps/backend/src/services/scheduler/config-service.ts

@@ -1,7 +1,11 @@
 import path from 'node:path'
 
+import { APP_CONFIG_KEYS } from '../../config/app-config-keys.js'
 import { PROJECT_ROOT } from '../../config/runtime.js'
-import { readJsonFile, writeJsonFile } from '../../utils/json-file-store.js'
+import {
+  readAppConfigEntry,
+  saveAppConfigEntry,
+} from '../config/app-config-store.js'
 
 const SCHEDULED_JOBS_FILE_PATH = path.join(PROJECT_ROOT, 'data', 'scheduled-jobs.json')
 const CLOUDTENTACLES_HEALTH_JOB_ID = 'cloudtentacles-health'
@@ -13,11 +17,21 @@ export function getScheduledJobsFilePath() {
 }
 
 export function getScheduledJobsConfig() {
-  return loadScheduledJobsConfigFromFile()
+  return readAppConfigEntry({
+    configKey: APP_CONFIG_KEYS.scheduledJobs,
+    legacyFilePath: SCHEDULED_JOBS_FILE_PATH,
+    fallback: createDefaultScheduledJobsConfig,
+    normalize: normalizeScheduledJobsConfig,
+  })
 }
 
 export function saveScheduledJobsConfig(rawValue: unknown) {
-  return writeJsonFile(SCHEDULED_JOBS_FILE_PATH, rawValue, normalizeScheduledJobsConfig)
+  return saveAppConfigEntry({
+    configKey: APP_CONFIG_KEYS.scheduledJobs,
+    legacyFilePath: SCHEDULED_JOBS_FILE_PATH,
+    value: rawValue,
+    normalize: normalizeScheduledJobsConfig,
+  })
 }
 
 export function getCloudtentaclesHealthJob(config: JsonObject = getScheduledJobsConfig()) {
@@ -26,14 +40,6 @@ export function getCloudtentaclesHealthJob(config: JsonObject = getScheduledJobs
     || createDefaultCloudtentaclesHealthJob()
 }
 
-function loadScheduledJobsConfigFromFile() {
-  return readJsonFile(
-    SCHEDULED_JOBS_FILE_PATH,
-    createDefaultScheduledJobsConfig,
-    normalizeScheduledJobsConfig,
-  )
-}
-
 export function normalizeScheduledJobsConfig(rawValue: unknown) {
   const source = isPlainObject(rawValue) ? rawValue : {}
   const rawJobs = Array.isArray(source.jobs) ? source.jobs : []