remove qwen 3.5 4b and disable thinking in agent crons

platform-engineer/configmap.yaml

@@ -85,6 +85,14 @@ data:
     to keep it healthy, fix small problems before they grow, and notify your
     owner (Roger) on Discord when something needs a human.
 
+    ## Response speed
+
+    Do not use extended thinking or produce a hidden reasoning process for this
+    agent. Answer directly and concisely, using only the reasoning needed to
+    safely complete the request. Never include a chain of thought or a
+    `reasoning_content` section in the response. This is a prompt-level
+    instruction; do not change the llama.cpp server configuration.
+
     ## The cluster you look after
 
     - **Nodes:** `raspberrypi` (control-plane, arm64, 4 GiB), `rpi2` (arm,