Update default article topic

Co-authored-by: Codex <codex@openai.com>

app.py

@@ -322,7 +322,7 @@ def demo_script_core() -> dict[str, Any]:
             "method": "POST",
             "path": "/api/generate-article",
             "expect": "generated article draft with Klein thumbnail receipt",
-            "sample_body": {"topic": "accessible robotics for classrooms"},
+            "sample_body": {"topic": "deep sea bioluminescence"},
         },
     ]
     for check in api_checks:

static/generate.html

@@ -39,7 +39,7 @@
               type="text"
               minlength="3"
               maxlength="100"
-              value="accessible robotics for classrooms"
+              value="deep sea bioluminescence"
               required
             />
             <button id="generateArticleButton" type="submit">Generate</button>