fix(processing): clear replay error state

人工重放把 FAILED/DEAD 拨回 PENDING 时，与 attempts/next_attempt_at 一起清空 error_class 与 last_error，使活动状态不携带上一轮失败结论；identity_key、白名单与 MessageLifecycleGate 不变。

同语句同时改 JDBC 与内存实现，避免两套行为漂移。验证：ReplayServiceTest 3/0、InboxLifecycleJdbcSqlTest 8/0（H2 真实 SQL）。

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

@@ -276,7 +276,8 @@ class JdbcProcStateRepository(
         if (errorClasses.isEmpty()) return 0
         val placeholders = errorClasses.joinToString(",") { "?" }
         return ds.update(
-            "UPDATE proc_state SET state = 'PENDING', attempts = 0, next_attempt_at = NULL, updated_at = ? " +
+            "UPDATE proc_state SET state = 'PENDING', attempts = 0, next_attempt_at = NULL, " +
+                "error_class = NULL, last_error = NULL, updated_at = ? " +
                 "WHERE state IN ('FAILED', 'DEAD') AND error_class IN ($placeholders)",
             { ps ->
                 ps.setTimestamp(1, clock.instant().toSqlTimestamp())

src/main/kotlin/com/gzzn/omms/msgexchange/infra/stub/StubRepositories.kt

@@ -210,7 +210,10 @@ class StubProcState : ProcStateRepository {
         var n = 0
         rows.forEach { (id, s) ->
             if (s.errorClass in errorClasses && (s.state == ProcStatus.FAILED || s.state == ProcStatus.DEAD)) {
-                rows[id] = s.copy(state = ProcStatus.PENDING, attempts = 0, nextAttemptAt = null)
+                rows[id] = s.copy(
+                    state = ProcStatus.PENDING, attempts = 0, nextAttemptAt = null,
+                    errorClass = null, lastError = null,
+                )
                 n++
             }
         }