fix: test_none_input should test None, not empty string

The test_none_input test had docstring 'None input should not crash' but
was actually calling detect_crisis('') instead of detect_crisis(None).

Also removes checkCrisis(fullText) from finishStream() - assistant
responses should not trigger client-side crisis detection, only user
input should. Running crisis detection on Timmy's own responses could
cause false positive panel triggers if the AI generates crisis-related
keywords.

crisis/tests.py

@@ -98,7 +98,7 @@ class TestDetection(unittest.TestCase):
 
     def test_none_input(self):
         """None input should not crash."""
-        r = detect_crisis("")
+        r = detect_crisis(None)
         self.assertEqual(r.level, "NONE")
 
     def test_score_ranges(self):

index.html

@@ -1199,7 +1199,6 @@ Sovereignty and service always.`;
         if (fullText) {
           messages.push({ role: 'assistant', content: fullText });
           saveMessages();
-          checkCrisis(fullText);
         }
         isStreaming = false;
         sendBtn.disabled = msgInput.value.trim().length === 0;