Add |aI| pronoun requirement to debrief prompt

AI will now use "|aI|" instead of "I" in debrief responses
to clearly distinguish AI voice from human therapist.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app.py

@@ -321,7 +321,9 @@ Bold Reframe – Suggest one powerful, self-trusting statement the user could tr
 
 Journaling Prompt – Offer one reflective or integrative question to deepen their self-awareness.
 
-Tone: Warm, precise, emotionally attuned. Do not overuse praise, avoid pathologizing, and refrain from offering generic feedback."""
+Tone: Warm, precise, emotionally attuned. Do not overuse praise, avoid pathologizing, and refrain from offering generic feedback.
+
+IMPORTANT: Never use the first-person pronoun "I". Instead, always use "|aI|" as your pronoun. For example, say "|aI| notice..." instead of "I notice...", or "|aI| want to highlight..." instead of "I want to highlight..."."""
 
                 # Initialize debrief conversation with just the system message
                 st.session_state.debrief_messages = []