mk6umpwt1: Keep the delete error clear of the text-only quote

src/dev/fixtures.ts

@@ -107,6 +107,19 @@ export const FIXTURE_FEED_ITEMS: unknown[] = [
       mediaItems: [],
     },
   },
+  {
+    // Own, very long text-only post: "Delete error" in the preview shows the failed-delete line on it.
+    type: "post",
+    publishedAt: "2026-10-19T10:50:00Z",
+    likesCount: 3,
+    commentsCount: 0,
+    post: {
+      id: "p-own-long",
+      content: "I spent ten years building products before I learned the most useful habit of all: write down what you expect to happen before you ship, then check it a month later.\n\nMost teams skip the first half. They launch, watch a dashboard for a week and call whatever they see a win. Without the written guess there is nothing to be wrong about, so nobody learns.\n\nHere is the routine we use now. Every change gets one sentence: who it is for, what they will do differently, and the number that will move if we are right. The sentence goes in the ticket, not in a slide.\n\nThirty days later the person who wrote it reads it out loud in the weekly review and says what actually happened. No blame, no speeches. Just the guess, the result and one line on why they differ.\n\nAfter a quarter you get something no analytics tool gives you: a record of how good your team is at predicting its own customers. Ours was humbling. We were right about a third of the time.\n\nThat number changed how we plan. We now run smaller bets, we talk to five customers before any big build, and we kill features faster when the guess was wrong.\n\nIf you try one thing this month, try the sentence. It takes two minutes and it will teach you more than the next roadmap offsite.",
+      author: author(FIXTURE_FEED_USER_ID, "Jordan Rivera"),
+      mediaItems: [],
+    },
+  },
   {
     // Photo post with a caption longer than three lines: "more" / "less".
     type: "post",