feat(uns): equipment detail page shell + Details tab + create-redirect

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/EquipmentPickContext.cs

@@ -0,0 +1,7 @@
+namespace ZB.MOM.WW.OtOpcUa.AdminUI.Uns;
+
+/// <summary>The UNS-line and driver options the equipment page's Details tab offers, scoped to the
+/// cluster that owns a given line. Empty lists when the line can't be resolved to a cluster.</summary>
+public sealed record EquipmentPickContext(
+    IReadOnlyList<(string Id, string Display)> Lines,
+    IReadOnlyList<(string Id, string Display)> Drivers);

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/IUnsTreeService.cs

@@ -205,6 +205,18 @@ public interface IUnsTreeService
     /// <returns>The cluster's drivers projected to <c>(DriverInstanceId, Display)</c> pairs.</returns>
     Task<IReadOnlyList<(string DriverInstanceId, string Display)>> LoadDriversForClusterAsync(string clusterId, CancellationToken ct = default);
 
+    /// <summary>
+    /// Loads the UNS-line and driver <c>(Id, Display)</c> option lists the equipment page's Details tab
+    /// offers, scoped to the cluster that owns the supplied line: every line in that cluster (for the
+    /// line picker) and that cluster's drivers (reusing <see cref="LoadDriversForClusterAsync"/>).
+    /// Centralizes the resolution the page would otherwise need the loaded tree to perform. Returns
+    /// empty lists when <paramref name="lineId"/> is null/empty or cannot be resolved to a cluster.
+    /// </summary>
+    /// <param name="lineId">The line whose owning cluster scopes the option lists; null/empty yields empties.</param>
+    /// <param name="ct">A token to cancel the load.</param>
+    /// <returns>The cluster-scoped line and driver options, or empty lists when the line can't be resolved.</returns>
+    Task<EquipmentPickContext> LoadEquipmentPickContextAsync(string? lineId, CancellationToken ct = default);
+
     /// <summary>
     /// Creates a new UNS area under a cluster. Fails if an area with the same id already exists.
     /// Whitespace-only notes are stored as <c>null</c>.

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Uns/UnsTreeService.cs

@@ -266,6 +266,33 @@ public sealed class UnsTreeService(IDbContextFactory<OtOpcUaConfigDbContext> dbF
             .ToList();
     }
 
+    /// <inheritdoc />
+    public async Task<EquipmentPickContext> LoadEquipmentPickContextAsync(string? lineId, CancellationToken ct = default)
+    {
+        var empty = new EquipmentPickContext(Array.Empty<(string, string)>(), Array.Empty<(string, string)>());
+        if (string.IsNullOrEmpty(lineId)) return empty;
+
+        await using var db = await dbFactory.CreateDbContextAsync(ct);
+
+        // line -> area -> clusterId
+        var clusterId = await (from l in db.UnsLines.AsNoTracking()
+                               join a in db.UnsAreas.AsNoTracking() on l.UnsAreaId equals a.UnsAreaId
+                               where l.UnsLineId == lineId
+                               select a.ClusterId).FirstOrDefaultAsync(ct);
+        if (string.IsNullOrEmpty(clusterId)) return empty;
+
+        // all lines in that cluster (for the line <select>)
+        var lines = await (from l in db.UnsLines.AsNoTracking()
+                           join a in db.UnsAreas.AsNoTracking() on l.UnsAreaId equals a.UnsAreaId
+                           where a.ClusterId == clusterId
+                           orderby l.Name
+                           select new { l.UnsLineId, l.Name }).ToListAsync(ct);
+
+        var lineOptions = lines.Select(x => (x.UnsLineId, x.Name)).ToList();
+        var drivers = await LoadDriversForClusterAsync(clusterId, ct);
+        return new EquipmentPickContext(lineOptions, drivers);
+    }
+
     /// <inheritdoc />
     public async Task<UnsMutationResult> CreateAreaAsync(
         string clusterId,