refactor: update imports from @salesforce/webapp-experimental to @salesforce/ui-bundle

- Rename package dependency to @salesforce/ui-bundle
- Update manifest.ts to import UIBundleManifest (renamed from WebAppManifest upstream)
- Update ProxyServer.ts imports to @salesforce/ui-bundle/app and /proxy
- Inline error page HTML template (removed from upstream package)

Author: garychangsf

package.json

@@ -10,7 +10,7 @@
     "@salesforce/core": "^8.25.1",
     "@salesforce/kit": "^3.2.4",
     "@salesforce/sf-plugins-core": "^12.2.6",
-    "@salesforce/webapp-experimental": "^1.23.0",
+    "@salesforce/ui-bundle": "^1.23.0",
     "chokidar": "^3.6.0",
     "http-proxy": "^1.18.1",
     "micromatch": "^4.0.8",

src/config/manifest.ts

@@ -14,20 +14,20 @@
  * limitations under the License.
  */
 
-// Re-export base types from @salesforce/webapp-experimental package
+// Re-export base types from @salesforce/ui-bundle package
 export type {
-  WebAppManifest as BaseWebAppManifest,
+  UIBundleManifest as BaseWebAppManifest,
   RoutingConfig,
   RewriteRule,
   RedirectRule,
-} from '@salesforce/webapp-experimental/app';
+} from '@salesforce/ui-bundle/app';
 
 // Import for local use
-import type { WebAppManifest as BaseWebAppManifest } from '@salesforce/webapp-experimental/app';
+import type { UIBundleManifest as BaseWebAppManifest } from '@salesforce/ui-bundle/app';
 
 /**
  * Development configuration (plugin-specific extension)
- * NOT in @salesforce/webapp-experimental package
+ * NOT in @salesforce/ui-bundle package
  */
 export type DevConfig = {
   /** Command to run the dev server (e.g., "npm run dev") */
@@ -40,7 +40,7 @@ export type DevConfig = {
 
 /**
  * WebApp manifest configuration - defines the structure of ui-bundle.json file
- * Extended from @salesforce/webapp-experimental with plugin-specific fields
+ * Extended from @salesforce/ui-bundle with plugin-specific fields
  */
 export type WebAppManifest = BaseWebAppManifest & {
   /** Development configuration (plugin-specific) */

src/proxy/ProxyServer.ts

@@ -21,10 +21,10 @@ import { readFileSync } from 'node:fs';
 import { join } from 'node:path';
 import httpProxy from 'http-proxy';
 import { Logger, SfError } from '@salesforce/core';
-import type { OrgInfo } from '@salesforce/webapp-experimental/app';
-import { getOrgInfo } from '@salesforce/webapp-experimental/app';
-import type { ProxyHandler } from '@salesforce/webapp-experimental/proxy';
-import { createProxyHandler } from '@salesforce/webapp-experimental/proxy';
+import type { OrgInfo } from '@salesforce/ui-bundle/app';
+import { getOrgInfo } from '@salesforce/ui-bundle/app';
+import type { ProxyHandler } from '@salesforce/ui-bundle/proxy';
+import { createProxyHandler } from '@salesforce/ui-bundle/proxy';
 import type { WebAppManifest } from '../config/manifest.js';
 import type { DevServerError } from '../config/types.js';
 import type { ErrorPageData } from '../templates/ErrorPageRenderer.js';

src/templates/ErrorPageRenderer.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { getErrorPageTemplate } from '@salesforce/webapp-experimental/proxy';
+import { errorPageTemplate } from './errorPageTemplate.js';
 import type { DevServerError } from '../config/types.js';
 
 export type ErrorPageData = {
@@ -35,7 +35,7 @@ export class ErrorPageRenderer {
   private template: string;
 
   public constructor() {
-    this.template = getErrorPageTemplate();
+    this.template = errorPageTemplate;
   }
 
   /**