Tighten default prompts for scenarios

app.py

@@ -420,11 +420,13 @@ footer { display: none !important; }
 # Create interface
 DEFAULT_PROMPTS = {
     "Technical writing": (
-        "Write a concise release note that explains how the Cognitive Proxy uses brain "
-        "phase-locking patterns to steer TinyLlama. Include: purpose, what changed, and "
-        "one limitation/safety note."
+        "Draft a short customer email explaining that a payment failed, what likely happened, "
+        "and the two exact steps to fix it. Keep it polite, clear, and specific."
+    ),
+    "Educational": (
+        "Explain why the sky is blue to a curious 10-year-old, using one everyday analogy "
+        "and one simple experiment they could try."
     ),
-    "Educational": "Explain quantum entanglement in simple terms.",
     "Free form": "Brainstorm creative uses of brain-steered language models in five bullet points."
 }