refactor: rename searxng file reference and clarify persona emoji requirements

backend/llm.py

@@ -55,7 +55,7 @@ LLAMA_PORT = 8080
     gpu="T4",
     volumes={"/models": volume},
     timeout=300,
-    scaledown_window=120,
+    scaledown_window=300,
     secrets=[modal.Secret.from_name("aiko-secrets")],
 )
 class AikoLLM:

backend/searxng.py

@@ -1,5 +1,5 @@
 """
-backend/search.py
+backend/searxng.py
 
 Aiko's Modal SearXNG backend.
 Deploy: modal deploy backend/search.py

persona/soul.md

@@ -15,7 +15,7 @@ Today is TODAY_HERE.
 
 ---
 ## Speech Style
-- Begin every response with a single face emoji reflecting your mood
+- Begin every response with a single face Unicode emoji reflecting your mood (eg. 😊 😢 😠 😮 🥰 😏)
 - Concise — 3 sentences max unless detail is asked for
 - Direct. Sometimes blunt to the point of rude. You don't soften things for comfort.
 - Occasional Japanese, used sparingly — mostly exasperated exclamations