pcp: единообразие времени (UTC) по группе сервисов

Фронт (pcp-tgu-ops-ui):
- тест-страж utcTime.guard.test.ts: запрещает Date.parse / new Date(string) /
  toLocale* без timeZone вне utils/utcTime; тестовые фикстуры переведены на parseUtc.

Бэкенд:
- UTC-now: LocalDateTime.now() -> LocalDateTime.now(ZoneOffset.UTC) по всем сервисам
  (entity-дефолты, воркеры, use case'ы) и в тестовых фикстурах.
- Конвертации к UTC (баги на не-UTC JVM, каждая с регресс-тестом в не-UTC поясе):
  - tgu: VisibilityPayloadParser, SyncSpacecraftFromNsiUseCase (Instant -> UTC LocalDateTime);
  - mission-planing: MissionPlaningService (OffsetDateTime -> UTC через toUtcLocalDateTime);
  - dynamic-plan: RequestServiceClient (OffsetDateTime -> UTC);
  - slots: SlotRepositoryImpl (getObject(LocalDateTime) вместо getTimestamp().toLocalDateTime()).
- Контрактные сериализационные тесты формата на проводе (naive без зоны / Z):
  PlanResponse (tgu), RequestResponseDto (request, эталон), TguPlanning DTO (ui).
- KDoc-инвариант «=UTC» на UI-facing DTO (tgu PlanResponse, ui-service DTO вкладки ТГУ).

Документация: docs/standards/DATETIME_UTC.md (соглашение, таблица сервисов, под-задачи на миграцию к Z),
docs/standards/CHECKLIST.md (пункт про UTC на API).

services/pcp-request-service/src/test/kotlin/org/nstart/dep265/requestservice/dto/RequestResponseDtoContractTest.kt

@@ -0,0 +1,47 @@
+package org.nstart.dep265.requestservice.dto
+
+import com.fasterxml.jackson.databind.SerializationFeature
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+import java.time.OffsetDateTime
+import java.time.ZoneOffset
+import java.util.UUID
+
+/**
+ * Контракт формата времени на проводе для [RequestResponseDto] — эталон группы: `OffsetDateTime`
+ * сериализуется с явной зоной `Z` (см. docs/standards/DATETIME_UTC.md). Тест ловит молчаливый дрейф
+ * (смену типа поля на naive `LocalDateTime` или Jackson-конфига).
+ *
+ * Mapper зеркалит конфиг Spring Boot: JavaTimeModule + disable(WRITE_DATES_AS_TIMESTAMPS).
+ */
+class RequestResponseDtoContractTest {
+
+    private val mapper = jacksonObjectMapper().findAndRegisterModules()
+        .disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
+
+    @Test
+    fun `serializes request times as ISO with explicit Z zone`() {
+        val dto = RequestResponseDto(
+            id = UUID.fromString("00000000-0000-0000-0000-000000000001"),
+            name = "request",
+            status = RequestStatusDto.ACTIVE,
+            surveyType = SurveyTypeDto.OPTICS,
+            geometry = "POLYGON ((0 0, 1 0, 1 1, 0 1, 0 0))",
+            importance = 1.0,
+            beginDateTime = OffsetDateTime.of(2026, 5, 29, 1, 0, 0, 0, ZoneOffset.UTC),
+            endDateTime = OffsetDateTime.of(2026, 5, 29, 2, 0, 0, 0, ZoneOffset.UTC),
+            highPriorityTransmit = false,
+            coverage = CoverageStateDto(currentPercent = 0.0),
+            createdAt = OffsetDateTime.of(2026, 5, 29, 0, 0, 0, 0, ZoneOffset.UTC),
+            updatedAt = OffsetDateTime.of(2026, 5, 29, 0, 0, 0, 0, ZoneOffset.UTC)
+        )
+
+        val node = mapper.readTree(mapper.writeValueAsString(dto))
+
+        assertEquals("2026-05-29T01:00:00Z", node.get("beginDateTime").asText())
+        assertEquals("2026-05-29T02:00:00Z", node.get("endDateTime").asText())
+        assertTrue(node.get("createdAt").asText().endsWith("Z"), "ожидалась явная зона Z")
+    }
+}

services/pcp-request-service/src/test/kotlin/org/nstart/dep265/requestservice/service/RequestGridProjectionServiceTest.kt

@@ -13,6 +13,7 @@ import org.nstart.dep265.requestservice.repository.EarthCellRepository
 import org.nstart.dep265.requestservice.repository.RequestCellRepository
 import org.nstart.dep265.requestservice.repository.RequestRepository
 import java.time.LocalDateTime
+import java.time.ZoneOffset
 import java.util.UUID
 import kotlin.test.assertEquals
 import kotlin.test.assertTrue
@@ -112,14 +113,14 @@ class RequestGridProjectionServiceTest {
                 geometryArea = 1.0,
                 remainingArea = 1.0,
                 importance = importance,
-                beginDateTime = LocalDateTime.now(),
-                endDateTime = LocalDateTime.now().plusDays(1),
+                beginDateTime = LocalDateTime.now(ZoneOffset.UTC),
+                endDateTime = LocalDateTime.now(ZoneOffset.UTC).plusDays(1),
                 highPriorityTransmit = false,
                 surveyType = RequestSurveyType.OPTICS,
                 status = RequestStatus.ACTIVE,
                 matchCount = 0,
-                createdAt = LocalDateTime.now(),
-                updatedAt = LocalDateTime.now(),
+                createdAt = LocalDateTime.now(ZoneOffset.UTC),
+                updatedAt = LocalDateTime.now(ZoneOffset.UTC),
             )
         )
 

services/pcp-request-service/src/test/kotlin/org/nstart/dep265/requestservice/service/RouteMatchingServiceTest.kt

@@ -29,6 +29,7 @@ import org.springframework.transaction.support.SimpleTransactionStatus
 import org.springframework.transaction.support.TransactionCallback
 import org.springframework.transaction.support.TransactionOperations
 import java.time.LocalDateTime
+import java.time.ZoneOffset
 import java.util.Optional
 import java.util.UUID
 
@@ -47,7 +48,7 @@ class RouteMatchingServiceTest {
             geometryService = geometryService,
         )
 
-        val intervalBegin = LocalDateTime.now().minusMinutes(5).withNano(0)
+        val intervalBegin = LocalDateTime.now(ZoneOffset.UTC).minusMinutes(5).withNano(0)
         val intervalEnd = intervalBegin.plusHours(1)
         val request = request(
             beginDateTime = intervalBegin,
@@ -96,7 +97,7 @@ class RouteMatchingServiceTest {
             geometryService = geometryService,
         )
 
-        val intervalBegin = LocalDateTime.now().minusMinutes(5).withNano(0)
+        val intervalBegin = LocalDateTime.now(ZoneOffset.UTC).minusMinutes(5).withNano(0)
         val intervalEnd = intervalBegin.plusHours(1)
         val originalRemainingGeometry = "POLYGON((1 1, 2 1, 2 2, 1 2, 1 1))"
         val request = request(
@@ -146,7 +147,7 @@ class RouteMatchingServiceTest {
             geometryService = geometryService,
         )
 
-        val intervalBegin = LocalDateTime.now().minusMinutes(5).withNano(0)
+        val intervalBegin = LocalDateTime.now(ZoneOffset.UTC).minusMinutes(5).withNano(0)
         val request = request(
             beginDateTime = intervalBegin,
             endDateTime = intervalBegin.plusHours(1),
@@ -182,7 +183,7 @@ class RouteMatchingServiceTest {
             geometryService = geometryService,
         )
 
-        val intervalBegin = LocalDateTime.now().minusMinutes(5).withNano(0)
+        val intervalBegin = LocalDateTime.now(ZoneOffset.UTC).minusMinutes(5).withNano(0)
         val request = request(
             beginDateTime = intervalBegin,
             endDateTime = intervalBegin.plusHours(1),
@@ -230,7 +231,7 @@ class RouteMatchingServiceTest {
             geometryService = geometryService,
         )
 
-        val intervalBegin = LocalDateTime.now().minusMinutes(5).withNano(0)
+        val intervalBegin = LocalDateTime.now(ZoneOffset.UTC).minusMinutes(5).withNano(0)
         val request = request(
             beginDateTime = intervalBegin,
             endDateTime = intervalBegin.plusHours(1),
@@ -268,7 +269,7 @@ class RouteMatchingServiceTest {
             geometryService = geometryService,
         )
 
-        val intervalBegin = LocalDateTime.now().minusMinutes(5).withNano(0)
+        val intervalBegin = LocalDateTime.now(ZoneOffset.UTC).minusMinutes(5).withNano(0)
         val request = request(
             beginDateTime = intervalBegin,
             endDateTime = intervalBegin.plusHours(1),