remove(ai): delete the composer-race post and its generator entries (user decision)

- git rm src/content/posts/the-dialog-opened-in-7-seconds-my-script-waited-5.md + the zh twin
- drop its TERMINALS/BANNERS entries from both generators (pure deletions: 0 added, 17 + 5 removed,
  node --check OK, 0 remaining references to the slug, the other three slugs intact)
- build still 153 pages; no route, no listing row, no sitemap entry

scripts/banner-gen/generate.mjs

@@ -1254,23 +1254,6 @@ BANNERS['docker-reported-exit-0-the-oom-killer-disagreed'] = {
   ],
 };
 
-BANNERS['the-dialog-opened-in-7-seconds-my-script-waited-5'] = {
-  titlebar: "root@win11 - the dialog was open",
-  lines: [
-    { t: 'prompt', text: "$" }, { t: 'cmd', text: "cron linkedin-daily-post" },
-    { t: 'dim', text: "dialog +1.8s - buttons +2.8s - editor +7.2s" }, { t: 'err', text: "script slept 5s, looked once: 'dialog did not open'" },
-    { t: 'prompt', text: "$" }, { t: 'cmd', text: "poll(node=editor, timeout=40s)" },
-    { t: 'ok', text: "submitted - the composer closing is the proof" }, { t: 'hl', text: "click ignored 75s, identical click accepted in 2s" },
-    { t: 'dim', text: "13 tests pin the staged mount + the swallowed click" }, { t: 'dim', text: "72h approval TTL vs a 12-day queue: silent ticks" },
-  ],
-  flow: [
-    { n: '1', label: "click start a post" },
-    { n: '2', label: "poll for the editor" },
-    { n: '3', label: "submit once" },
-    { n: '4', label: "confirm it closed" },
-  ],
-};
-
 BANNERS['authentik-css-greater-than-bug'] = {
   titlebar: "auth.hoelee.com - brand css",
   lines: [