fix(config): fail fast on invalid operation-day zone

运营日时区只认 PARAM:msgx.operation-day.zone：JobRunner、HistorySweepJob、JdbcSnapshotLogRepository.purgeBefore 改走注入的 OperationDayProps；ScheduleProcessor/AdftProcessor 删除「非法值回退字面量」；新增 @Context 启动自检 OperationDayZoneCheck，配置错位在启动时暴露。

验证：./gradlew test 126 tests / 0 fail（新增 OperationDayPropsTest 覆盖合法解析与非法即失败）。

src/main/kotlin/com/gzzn/omms/msgexchange/infra/persistence/jdbc/JdbcPgRepositories.kt

@@ -1,5 +1,6 @@
 package com.gzzn.omms.msgexchange.infra.persistence.jdbc
 
+import com.gzzn.omms.msgexchange.config.OperationDayProps
 import com.gzzn.omms.msgexchange.domain.ErrorClass
 import com.gzzn.omms.msgexchange.domain.EventStatus
 import com.gzzn.omms.msgexchange.domain.EventType
@@ -818,6 +819,7 @@ class JdbcFlightStateRepository(
 class JdbcSnapshotLogRepository(
     private val ds: DataSource,
     private val clock: Clock,
+    private val operationDayProps: OperationDayProps,
 ) : SnapshotLogRepository, SnapshotLogPurge {
     /** 只追加写；这里不抛异常，写失败由调用方捕获并记为指标。 */
     override fun append(entry: SnapshotLogEntry) {
@@ -847,7 +849,7 @@ class JdbcSnapshotLogRepository(
         ds.update(
             "DELETE FROM schd_snap_log WHERE scope_end < ? AND recv_at < ?",
             { ps ->
-                val cutoffDay = java.time.LocalDate.ofInstant(instant, java.time.ZoneId.of("Asia/Shanghai"))
+                val cutoffDay = java.time.LocalDate.ofInstant(instant, operationDayProps.zoneId())
                 ps.setDate(1, java.sql.Date.valueOf(cutoffDay))
                 ps.setTimestamp(2, instant.toSqlTimestamp())
             },