style(experimental): satisfy lint in the personalized pages block readers

Wraps two lines over the length limit and reads the regex group without a
non-null assertion.

packages/experimental/client-ui-creation-recommendations/src/client/definition.ts

@@ -17,10 +17,14 @@ function proposalFields(value: unknown): Omit<CreationRecommendation, 'callId'>
   if (!record(value) || typeof value.title !== 'string' || value.title.trim() === '' || typeof value.brief !== 'string' || value.brief.trim() === ''
     || value.slot !== 'sidebar-right' && value.slot !== 'page' && value.slot !== 'sidebar-left'
     || value.initialContent !== undefined && typeof value.initialContent !== 'string') return undefined
-  return { title: value.title.trim(), brief: value.brief.trim(), slot: value.slot, ...value.initialContent === undefined ? {} : { initialContent: value.initialContent } }
+  return {
+    title: value.title.trim(), brief: value.brief.trim(), slot: value.slot,
+    ...value.initialContent === undefined ? {} : { initialContent: value.initialContent },
+  }
 }
 
-/** Read a proposal from a logged event: the last valid `dsh-action` block of an assistant answer, or earlier sessions' tool result metadata.
+/** Read a proposal from a logged event: the last valid `dsh-action` block of an assistant answer,
+ * or earlier sessions' tool result metadata.
  * @param event - Persisted assistant message, native or PTC result.
  * @returns validated creation proposal, if present.
  */

packages/experimental/creation-recommendations/src/action-block.ts

@@ -13,7 +13,7 @@ export function actionBlocksOf(text: string): unknown[] {
   const objects: unknown[] = []
   for (const match of text.matchAll(FENCE)) {
     try {
-      const value: unknown = JSON.parse(match[1]!.trim())
+      const value: unknown = JSON.parse((match[1] as string).trim())
       if (typeof value === 'object' && value !== null && !Array.isArray(value)) objects.push(value)
     } catch {
       // Malformed JSON inside a fence creates no proposal; the answer stays as written.