fix(tui): empty states, context, and minor improvements to diff viewer (#28878)

packages/sdk/js/src/v2/gen/sdk.gen.ts

@@ -1793,6 +1793,7 @@ export class Vcs extends HeyApiClient {
       directory?: string
       workspace?: string
       mode: "git" | "branch"
+      context?: number
     },
     options?: Options<never, ThrowOnError>,
   ) {
@@ -1804,6 +1805,7 @@ export class Vcs extends HeyApiClient {
             { in: "query", key: "directory" },
             { in: "query", key: "workspace" },
             { in: "query", key: "mode" },
+            { in: "query", key: "context" },
           ],
         },
       ],

packages/sdk/js/src/v2/gen/types.gen.ts

@@ -4837,6 +4837,7 @@ export type VcsDiffData = {
     directory?: string
     workspace?: string
     mode: "git" | "branch"
+    context?: number
   }
   url: "/vcs/diff"
 }