chore: update social post state [skip ci]

github-actions[bot] · github-actions[bot] · commit 5468af89fea9 · 2026-06-15T18:21:51.000Z
diff --git a/social/state.yaml b/social/state.yaml
@@ -1,4 +1,4 @@
-currentIndex: 15
-lastPostedKey: language/sealed-classes
-lastTweetId: 2065125262702903468
-lastPostedAt: 2026-06-11T17:33:25.648608373Z
+currentIndex: 16
+lastPostedKey: strings/string-isblank
+lastTweetId: 2066587001508483095
+lastPostedAt: 2026-06-15T18:21:51.270042900Z
