Update FUNCTION_SCHEMA to include width and height parameters for generate_image; enhance user guidance in route_intent function.

app.py

@@ -311,9 +311,11 @@ FUNCTION_SCHEMA = {
     "poll_vote":      {"description":"Vote poll",          "params":["choice"]},
     "poll_results":   {"description":"Show poll results",  "params":[]},
     "poll_end":       {"description":"End poll",           "params":[]},
-    "generate_image": {"description":"Generate images",    "params":["prompt","count"]},
-    "send_text":      {"description":"Send plain text",    "params":["message"]},
-}
+    "generate_image": {
+       "description":"Generate images",
+       "params":["prompt","count","width","height"]
+   },
+    "send_text":      {"description":"Send plain text",    "params":["message"]}}
 
 class IntentDispatcher:
     def __init__(self):
@@ -414,7 +416,9 @@ def route_intent(user_input, chat_id, sender):
         "You are Eve. You can either chat or call one of these functions:\n"
         + "\n".join(f"- {n}: {f['description']}" for n,f in FUNCTION_SCHEMA.items())
         + "\n\nTo call a function, return JSON with \"action\":\"<name>\", plus its parameters.\n"
-        "Otherwise return JSON with \"action\":\"send_text\",\"message\":\"...\".\n"
+        + "Here’s an example for generating images:\n"
+        + "  {\"action\":\"generate_image\",\"prompt\":\"a red fox\",\"count\":3,\"width\":512,\"height\":512}\n"
+        + "Otherwise return JSON with \"action\":\"send_text\",\"message\":\"...\".\n"
         "Return only raw JSON."
     )
     prompt = (