refactor(adminui): drive DriverEdit.razor through shared section components

No functional change — the identity, resilience, and save-bar are now
each in their own reusable component so the typed driver pages (Phase 4)
can share them. The middle "Driver config (JSON)" panel stays inlined
for now — it's replaced wholesale by typed forms in Phase 4.

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Pages/Clusters/DriverEdit.razor

@@ -11,6 +11,7 @@
 @using System.ComponentModel.DataAnnotations
 @using ZB.MOM.WW.OtOpcUa.Configuration
 @using ZB.MOM.WW.OtOpcUa.Configuration.Entities
+@using ZB.MOM.WW.OtOpcUa.AdminUI.Components.Shared.Drivers
 @inject IDbContextFactory<OtOpcUaConfigDbContext> DbFactory
 @inject NavigationManager Nav
 
@@ -35,97 +36,24 @@ else
 {
     <EditForm Model="_form" OnValidSubmit="SubmitAsync" FormName="driverEdit">
         <DataAnnotationsValidator />
-        <section class="panel rise" style="animation-delay:.02s">
+        <DriverFormShell IsNew="IsNew" Busy="_busy" Error="_error"
-            <div class="panel-head">@(IsNew ? "Identity" : $"Edit {_form.DriverInstanceId}")</div>
+                         CancelHref="@($"/clusters/{ClusterId}/drivers")"
-            <div style="padding:1rem">
+                         OnDelete="@(IsNew ? null : (EventCallback?)EventCallback.Factory.Create(this, DeleteAsync))">
-                <div class="row">
+            <DriverIdentitySection Model="_identityModel" Namespaces="_namespaces" IsNew="IsNew" ShowDriverType="true" />
-                    <div class="col-md-6 mb-3">
+
-                        <label class="form-label" for="instId">DriverInstanceId</label>
+            @* Driver config (JSON) — inlined; will be replaced by typed forms in Phase 4 *@
-                        <InputText id="instId" @bind-Value="_form.DriverInstanceId" disabled="@(!IsNew)"
+            <section class="panel rise mt-3" style="animation-delay:.08s">
+                <div class="panel-head">Driver config (JSON)</div>
+                <div style="padding:1rem">
+                    <InputTextArea @bind-Value="_form.DriverConfig" rows="12"
                                    class="form-control form-control-sm mono"
-                                   placeholder="drv-modbus-line3-01" />
+                                   placeholder='{ "endpoint": "10.0.0.42:502", "slaveId": 1 }' />
-                    </div>
+                    <div class="form-text">Schemaless per driver type — validated server-side at deploy time. JSON is reformatted on save.</div>
-                    <div class="col-md-6 mb-3">
-                        <label class="form-label" for="name">Display name</label>
-                        <InputText id="name" @bind-Value="_form.Name" class="form-control form-control-sm"
-                                   placeholder="Line 3 Modbus" />
-                    </div>
                 </div>
-                <div class="row">
+            </section>
-                    <div class="col-md-6 mb-3">
-                        <label class="form-label" for="dtype">Driver type</label>
-                        <InputSelect id="dtype" @bind-Value="_form.DriverType" disabled="@(!IsNew)"
-                                     class="form-select form-select-sm">
-                            <option value="ModbusTcp">ModbusTcp</option>
-                            <option value="AbCip">AbCip</option>
-                            <option value="AbLegacy">AbLegacy</option>
-                            <option value="S7">S7</option>
-                            <option value="TwinCat">TwinCat</option>
-                            <option value="Focas">Focas</option>
-                            <option value="OpcUaClient">OpcUaClient</option>
-                            <option value="Galaxy">Galaxy</option>
-                            <option value="Historian.Wonderware">Historian.Wonderware</option>
-                        </InputSelect>
-                        <div class="form-text">Cannot be changed after creation — drives the actor type that owns this instance.</div>
-                    </div>
-                    <div class="col-md-6 mb-3">
-                        <label class="form-label" for="ns">Namespace</label>
-                        <InputSelect id="ns" @bind-Value="_form.NamespaceId" class="form-select form-select-sm">
-                            @foreach (var ns in _namespaces)
-                            {
-                                <option value="@ns.NamespaceId">@ns.NamespaceId (@ns.Kind)</option>
-                            }
-                        </InputSelect>
-                    </div>
-                </div>
-                <div class="mb-3">
-                    <label class="form-label" for="enabled">Enabled</label>
-                    <div class="form-check form-switch">
-                        <InputCheckbox id="enabled" @bind-Value="_form.Enabled" class="form-check-input" />
-                        <label class="form-check-label" for="enabled">Spawn this driver in deployments</label>
-                    </div>
-                </div>
-            </div>
-        </section>
 
-        <section class="panel rise mt-3" style="animation-delay:.08s">
+            <DriverResilienceSection @bind-ResilienceConfig="_form.ResilienceConfig" />
-            <div class="panel-head">Driver config (JSON)</div>
+        </DriverFormShell>
-            <div style="padding:1rem">
-                <InputTextArea @bind-Value="_form.DriverConfig" rows="12"
-                               class="form-control form-control-sm mono"
-                               placeholder='{ "endpoint": "10.0.0.42:502", "slaveId": 1 }' />
-                <div class="form-text">Schemaless per driver type — validated server-side at deploy time. JSON is reformatted on save.</div>
-            </div>
-        </section>
-
-        <section class="panel rise mt-3" style="animation-delay:.14s">
-            <div class="panel-head">Resilience overrides (optional)</div>
-            <div style="padding:1rem">
-                <InputTextArea @bind-Value="_form.ResilienceConfig" rows="6"
-                               class="form-control form-control-sm mono"
-                               placeholder='Leave blank to use tier defaults' />
-                <div class="form-text">Polly pipeline overrides per docs/v2/driver-stability.md — bulkhead, retry counts, breaker thresholds. Null = use the driver type's tier defaults.</div>
-            </div>
-        </section>
-
-        @if (!string.IsNullOrWhiteSpace(_error))
-        {
-            <div class="panel notice mt-3" style="border-color:var(--alert)">@_error</div>
-        }
-
-        <div class="mt-3 d-flex gap-2">
-            <button type="submit" class="btn btn-primary" disabled="@_busy">
-                @if (_busy) { <span class="spinner-border spinner-border-sm me-1"></span> }
-                @(IsNew ? "Create" : "Save changes")
-            </button>
-            <a href="/clusters/@ClusterId/drivers" class="btn btn-outline-secondary">Cancel</a>
-            @if (!IsNew)
-            {
-                <button type="button" class="btn btn-outline-danger ms-auto" @onclick="DeleteAsync" disabled="@_busy">
-                    Delete
-                </button>
-            }
-        </div>
     </EditForm>
 }
 
@@ -135,6 +63,7 @@ else
 
     private bool IsNew => string.IsNullOrEmpty(DriverInstanceId);
 
+    private DriverIdentitySection.DriverIdentityModel _identityModel = new();
     private FormModel _form = new();
     private DriverInstance? _existing;
     private List<Namespace> _namespaces = new();
@@ -152,13 +81,16 @@ else
 
         if (IsNew)
         {
-            _form = new FormModel
+            _identityModel = new DriverIdentitySection.DriverIdentityModel
             {
                 DriverInstanceId = "",
                 Name = "",
                 DriverType = "ModbusTcp",
                 NamespaceId = _namespaces.FirstOrDefault()?.NamespaceId ?? "",
                 Enabled = true,
+            };
+            _form = new FormModel
+            {
                 DriverConfig = "{}",
             };
         }
@@ -168,13 +100,16 @@ else
                 .FirstOrDefaultAsync(d => d.ClusterId == ClusterId && d.DriverInstanceId == DriverInstanceId);
             if (_existing is not null)
             {
-                _form = new FormModel
+                _identityModel = new DriverIdentitySection.DriverIdentityModel
                 {
                     DriverInstanceId = _existing.DriverInstanceId,
                     Name = _existing.Name,
                     DriverType = _existing.DriverType,
                     NamespaceId = _existing.NamespaceId,
                     Enabled = _existing.Enabled,
+                };
+                _form = new FormModel
+                {
                     DriverConfig = _existing.DriverConfig,
                     ResilienceConfig = _existing.ResilienceConfig,
                     RowVersion = _existing.RowVersion,
@@ -206,19 +141,19 @@ else
             await using var db = await DbFactory.CreateDbContextAsync();
             if (IsNew)
             {
-                if (await db.DriverInstances.AnyAsync(d => d.DriverInstanceId == _form.DriverInstanceId))
+                if (await db.DriverInstances.AnyAsync(d => d.DriverInstanceId == _identityModel.DriverInstanceId))
                 {
-                    _error = $"Driver instance '{_form.DriverInstanceId}' already exists.";
+                    _error = $"Driver instance '{_identityModel.DriverInstanceId}' already exists.";
                     return;
                 }
                 db.DriverInstances.Add(new DriverInstance
                 {
-                    DriverInstanceId = _form.DriverInstanceId,
+                    DriverInstanceId = _identityModel.DriverInstanceId,
                     ClusterId = ClusterId,
-                    NamespaceId = _form.NamespaceId,
+                    NamespaceId = _identityModel.NamespaceId,
-                    Name = _form.Name,
+                    Name = _identityModel.Name,
-                    DriverType = _form.DriverType,
+                    DriverType = _identityModel.DriverType,
-                    Enabled = _form.Enabled,
+                    Enabled = _identityModel.Enabled,
                     DriverConfig = normalizedConfig,
                     ResilienceConfig = normalizedResilience,
                 });
@@ -233,9 +168,9 @@ else
                     return;
                 }
                 db.Entry(entity).Property(e => e.RowVersion).OriginalValue = _form.RowVersion;
-                entity.NamespaceId = _form.NamespaceId;
+                entity.NamespaceId = _identityModel.NamespaceId;
-                entity.Name = _form.Name;
+                entity.Name = _identityModel.Name;
-                entity.Enabled = _form.Enabled;
+                entity.Enabled = _identityModel.Enabled;
                 entity.DriverConfig = normalizedConfig;
                 entity.ResilienceConfig = normalizedResilience;
             }
@@ -306,15 +241,6 @@ else
 
     private sealed class FormModel
     {
-        [Required, RegularExpression("^[A-Za-z0-9_-]+$", ErrorMessage = "Use letters, digits, dash, underscore.")]
-        public string DriverInstanceId { get; set; } = "";
-        [Required]
-        public string Name { get; set; } = "";
-        [Required]
-        public string DriverType { get; set; } = "ModbusTcp";
-        [Required]
-        public string NamespaceId { get; set; } = "";
-        public bool Enabled { get; set; } = true;
         [Required]
         public string DriverConfig { get; set; } = "{}";
         public string? ResilienceConfig { get; set; }