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-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/controller/CatalogRestController.kt

@@ -28,6 +28,7 @@ import space.nstart.pcp.slots_service.service.SatelliteCatalogService
 import space.nstart.pcp.slots_service.service.SatellitePdcmService
 import space.nstart.pcp.slots_service.service.SlotService
 import java.time.LocalDateTime
+import java.time.ZoneOffset
 import java.time.format.DateTimeFormatter
 import java.time.format.DateTimeParseException
 import java.time.format.ResolverStyle
@@ -103,7 +104,7 @@ class CatalogRestController(
 
     private fun parseSendInitialConditionsTime(time: String?): LocalDateTime {
         val normalizedTime = time?.trim()?.takeIf { it.isNotEmpty() }
-            ?: return LocalDateTime.now()
+            ?: return LocalDateTime.now(ZoneOffset.UTC)
 
         return try {
             LocalDateTime.parse(normalizedTime, sendInitialConditionsTimeFormatter)

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/dto/bookings/BookingsDTO.kt

@@ -6,6 +6,8 @@ import java.time.LocalDateTime
 /**
  * UI DTO for the bookings page. It intentionally lives in ui-service because the page combines
  * data from slots-service, request-service and satellite-catalog-service without changing their APIs.
+ *
+ * Времена ([LocalDateTime]) — UTC, naive ISO без зоны (см. docs/standards/DATETIME_UTC.md).
  */
 data class BookedSlotViewDTO(
     val bookedSlotId: Long,

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/dto/groupstate/GroupStateDTO.kt

@@ -2,6 +2,10 @@ package space.nstart.pcp.slots_service.dto.groupstate
 
 import java.time.LocalDateTime
 
+/*
+ * Времена ([LocalDateTime]) — UTC, naive ISO без зоны (см. docs/standards/DATETIME_UTC.md).
+ */
+
 data class GroupStateAvailabilityDTO(
     val timeStart: LocalDateTime,
     val timeStop: LocalDateTime

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/dto/pdcm/SatellitePdcmDTO.kt

@@ -3,6 +3,10 @@ package space.nstart.pcp.slots_service.dto.pdcm
 import space.nstart.pcp.pcp_types_lib.dto.ballistics.AscNodeDTO
 import java.time.LocalDateTime
 
+/*
+ * Времена ([LocalDateTime]) — UTC, naive ISO без зоны (см. docs/standards/DATETIME_UTC.md).
+ */
+
 data class SatellitePdcmAvailabilityDTO(
     val timeStart: LocalDateTime,
     val timeStop: LocalDateTime

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/dto/tgu/TguPlanningDTO.kt

@@ -4,6 +4,11 @@ import java.time.Instant
 import java.time.LocalDateTime
 import java.util.UUID
 
+/*
+ * Времена в этом файле — UTC (см. docs/standards/DATETIME_UTC.md): `LocalDateTime` сериализуется как
+ * naive ISO без зоны (= UTC), `Instant` — с `Z`. Потребители (фронт через utils/utcTime) парсят как UTC.
+ */
+
 data class TguPlatformResponse(
     val id: String?,
     val businessKey: String?,

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/dto/tleanalysis/TleAnalysisDTO.kt

@@ -2,6 +2,10 @@ package space.nstart.pcp.slots_service.dto.tleanalysis
 
 import java.time.LocalDateTime
 
+/*
+ * Времена ([LocalDateTime], в т.ч. epoch) — UTC, naive ISO без зоны (см. docs/standards/DATETIME_UTC.md).
+ */
+
 data class TleAnalysisSatelliteDTO(
     val id: Long,
     val catalogId: Long? = null,

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/dto/tlecomparison/TleComparisonDTO.kt

@@ -2,6 +2,10 @@ package space.nstart.pcp.slots_service.dto.tlecomparison
 
 import java.time.LocalDateTime
 
+/*
+ * Времена ([LocalDateTime], epoch/time) — UTC, naive ISO без зоны (см. docs/standards/DATETIME_UTC.md).
+ */
+
 class TleTextRequestDTO(
     var tle: String = ""
 )

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/service/CZMLService.kt

@@ -426,7 +426,7 @@ private val docReqCovName ="req_cov_"
         timeStop: LocalDateTime? = null
     ): Iterable<CZMLEntity> {
 
-        val tstart = timeStart ?: LocalDateTime.now()
+        val tstart = timeStart ?: LocalDateTime.now(ZoneOffset.UTC)
         val tstop = timeStop ?: tstart.plusDays(1)
         var vuz = ballisticsService.ascNodes(id, tstart, tstop).collectList().block()
         vuz = vuz?.filter { it.time >= tstart && it.time <= tstop }?.sortedBy { it.time }

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/service/CoverageSchemeService.kt

@@ -20,6 +20,7 @@ import space.nstart.pcp.slots_service.czml.CZMLPolygon
 import space.nstart.pcp.slots_service.czml.CZMLPosition
 import tools.jackson.databind.ObjectMapper
 import java.time.LocalDateTime
+import java.time.ZoneOffset
 
 @Service
 class CoverageSchemeService(webClientBuilderProvider: ObjectProvider<WebClient.Builder>) {
@@ -185,8 +186,8 @@ class CoverageSchemeModeRowDTO(
     val entityId: String = "",
     val sequence: Int = 0,
     val satelliteId: Long = 0,
-    val tn: LocalDateTime = LocalDateTime.now(),
-    val tk: LocalDateTime = LocalDateTime.now(),
+    val tn: LocalDateTime = LocalDateTime.now(ZoneOffset.UTC),
+    val tk: LocalDateTime = LocalDateTime.now(ZoneOffset.UTC),
     val roll: Double? = null,
     val revolutionSign: RevolutionSign? = null,
     val contour: String = "",

services/pcp-ui-service/src/main/kotlin/space/nstart/pcp/slots_service/service/SatellitePdcmService.kt

@@ -7,6 +7,7 @@ import space.nstart.pcp.slots_service.dto.pdcm.SatellitePdcmAvailabilityDTO
 import space.nstart.pcp.slots_service.dto.pdcm.SatellitePdcmDetailsDTO
 import space.nstart.pcp.slots_service.dto.pdcm.SatellitePdcmSummaryDTO
 import java.time.LocalDateTime
+import java.time.ZoneOffset
 
 @Service
 class SatellitePdcmService(
@@ -14,7 +15,7 @@ class SatellitePdcmService(
     private val ballisticsService: BallisticsService
 ) {
 
-    fun satelliteSummaries(): List<SatellitePdcmSummaryDTO> = satelliteSummaries(LocalDateTime.now())
+    fun satelliteSummaries(): List<SatellitePdcmSummaryDTO> = satelliteSummaries(LocalDateTime.now(ZoneOffset.UTC))
 
     fun satelliteSummaries(referenceTime: LocalDateTime): List<SatellitePdcmSummaryDTO> {
         val satellites = satelliteCatalogService.allSatellites()
@@ -39,7 +40,7 @@ class SatellitePdcmService(
     }
 
     fun satelliteDetails(satelliteId: Long): SatellitePdcmDetailsDTO =
-        satelliteDetails(satelliteId, LocalDateTime.now())
+        satelliteDetails(satelliteId, LocalDateTime.now(ZoneOffset.UTC))
 
     fun satelliteDetails(satelliteId: Long, referenceTime: LocalDateTime): SatellitePdcmDetailsDTO {
         val satellites = satelliteCatalogService.allSatellites()