feature: Ward Gateway Service (Local-First Clinical Path)

VigilCare.WardGateway/Services/Interfaces/IEncounterReadService.cs

@@ -0,0 +1,5 @@
+public interface IEncounterReadService
+{
+    Task<List<WardEncounterSummary>> ListActiveAsync(string? department);
+    Task<EncounterDetail?> GetByIdAsync(Guid id);
+}

VigilCare.WardGateway/Services/Interfaces/ILocalAlertService.cs

@@ -0,0 +1,6 @@
+public interface ILocalAlertService
+{
+    Task<LocalClinicalAlert> AcknowledgeAsync(Guid id, AcknowledgeAlertRequest req, string clinicianId);
+    Task<LocalClinicalAlert> ResolveAsync(Guid id);
+    Task<PagedResult<LocalClinicalAlert>> ListAsync(Guid? encounterId, string? status, int page, int pageSize);
+}

VigilCare.WardGateway/Services/Interfaces/ILocalObservationService.cs

@@ -0,0 +1,4 @@
+public interface ILocalObservationService
+{
+    Task<LocalIngestResult> IngestAsync(Guid encounterId, IngestObservationRequest req);
+}

VigilCare.WardGateway/Services/Interfaces/IObservationQueryService.cs

@@ -0,0 +1,10 @@
+public interface IObservationQueryService
+{
+    Task<CursorPage<LocalObservation>> GetHistoryAsync(
+        Guid encounterId,
+        string? code,
+        DateTimeOffset? from,
+        DateTimeOffset? to,
+        int limit,
+        string? cursorToken);
+}