fix(api): add nullable context to #96/#98 DTOs; regen OpenAPI + SPA types

ChannelResponseModel and BulkChannelRequests DTOs lacked file-scoped
#nullable enable, so the OpenAPI generator emitted every string
property as a ["null","string"] union (project Nullable default is
disable), polluting SPA typegen with needless `| null` unions.
ChannelStateResponseModel already complied with this convention
(precedent: PlayoutResponseModel). All properties in both files are
always populated (never null in practice), so no property needed to
become explicitly optional/nullable - just adding #nullable enable
was sufficient to clean up the generated schema.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

ErsatzTV.Core/Api/Channels/ChannelResponseModel.cs

@@ -1,4 +1,5 @@
-using Newtonsoft.Json;
+#nullable enable
+using Newtonsoft.Json;
 
 namespace ErsatzTV.Core.Api.Channels;
 

ErsatzTV/Controllers/Api/Requests/BulkChannelRequests.cs

@@ -1,3 +1,4 @@
+#nullable enable
 using ErsatzTV.Application.Channels;
 
 namespace ErsatzTV.Controllers.Api.Requests;

ErsatzTV/wwwroot/openapi/v1.json

@@ -3916,10 +3916,7 @@
         "type": "object",
         "properties": {
           "channelIds": {
-            "type": [
-              "null",
-              "array"
-            ],
+            "type": "array",
             "items": {
               "type": "integer",
               "format": "int32"
@@ -3935,20 +3932,14 @@
         "type": "object",
         "properties": {
           "channelIds": {
-            "type": [
-              "null",
-              "array"
-            ],
+            "type": "array",
             "items": {
               "type": "integer",
               "format": "int32"
             }
           },
           "group": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           }
         }
       },
@@ -3964,10 +3955,7 @@
             "format": "int32"
           },
           "number": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           }
         }
       },
@@ -3978,10 +3966,7 @@
         "type": "object",
         "properties": {
           "channels": {
-            "type": [
-              "null",
-              "array"
-            ],
+            "type": "array",
             "items": {
               "$ref": "#/components/schemas/BulkRenumberChannelRequest"
             }
@@ -4143,50 +4128,29 @@
             "format": "int32"
           },
           "number": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           },
           "sortNumber": {
             "type": "number",
             "format": "double"
           },
           "name": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           },
           "group": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           },
           "categories": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           },
           "fFmpegProfile": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           },
           "language": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           },
           "streamingMode": {
-            "type": [
-              "null",
-              "string"
-            ]
+            "type": "string"
           },
           "isEnabled": {
             "type": "boolean"

web/src/api/generated/v1.d.ts

@@ -27,18 +27,18 @@ export interface components {
     "contentType": string;
   };
     "BulkDeleteChannelsRequest": {
-    "channelIds": null | Array<number>;
+    "channelIds": Array<number>;
   };
     "BulkMoveChannelsToGroupRequest": {
-    "channelIds": null | Array<number>;
-    "group": null | string;
+    "channelIds": Array<number>;
+    "group": string;
   };
     "BulkRenumberChannelRequest": {
     "id": number;
-    "number": null | string;
+    "number": string;
   };
     "BulkRenumberChannelsRequest": {
-    "channels": null | Array<components["schemas"]["BulkRenumberChannelRequest"]>;
+    "channels": Array<components["schemas"]["BulkRenumberChannelRequest"]>;
   };
     "ChannelGuideChannelResponseModel": {
     "number": string;
@@ -69,14 +69,14 @@ export interface components {
     "ChannelPlayoutSource": "Generated" | "Mirror";
     "ChannelResponseModel": {
     "id": number;
-    "number": null | string;
+    "number": string;
     "sortNumber": number;
-    "name": null | string;
-    "group": null | string;
-    "categories": null | string;
-    "fFmpegProfile": null | string;
-    "language": null | string;
-    "streamingMode": null | string;
+    "name": string;
+    "group": string;
+    "categories": string;
+    "fFmpegProfile": string;
+    "language": string;
+    "streamingMode": string;
     "isEnabled": boolean;
     "showInEpg": boolean;
   };