cycleModelForward unbound to avoid inadvertent model switches mid-conversation.

Assisted-by: Claude Opus 4.6 via pi

diff --git a/.pi/.gitignore b/.pi/.gitignore
index 1c280075..8a8e90f0 100644
--- a/.pi/.gitignore
+++ b/.pi/.gitignore
@@ -1,3 +1,4 @@
 agent/*
 !agent/extensions/
+!agent/keybindings.json
 !agent/settings.json
diff --git a/.pi/agent/keybindings.json b/.pi/agent/keybindings.json
new file mode 100644
index 00000000..e914b069
--- /dev/null
+++ b/.pi/agent/keybindings.json
@@ -0,0 +1,4 @@
+{
+  "cursorUp": ["up", "ctrl+p"],
+  "cycleModelForward": []
+}