feat(providers): add Pi coding agent

apps/mobile/src/components/ProviderIcon.tsx

@@ -50,6 +50,20 @@ export function ProviderIcon(props: ProviderIconProps) {
     );
   }
 
+  if (props.provider === "pi") {
+    const foreground = isDarkMode ? "#F5F5F5" : "#0F0F0F";
+    return (
+      <Svg width={size} height={size} viewBox="165.29 165.29 469.43 469.43" fill="none">
+        <Path
+          fill={foreground}
+          fillRule="evenodd"
+          d="M165.29 165.29H517.36V400H400V517.36H282.65V634.72H165.29ZM282.65 282.65V400H400V282.65Z"
+        />
+        <Path fill={foreground} d="M517.36 400H634.72V634.72H517.36Z" />
+      </Svg>
+    );
+  }
+
   if (props.provider === "opencode") {
     return (
       <Svg width={size} height={size} viewBox="0 0 32 40" fill="none">

apps/mobile/src/lib/modelOptions.ts

@@ -36,6 +36,7 @@ function providerDisplayLabel(provider: {
   if (provider.displayName) return provider.displayName;
   if (provider.driver === "codex") return "Codex";
   if (provider.driver === "claudeAgent") return "Claude";
+  if (provider.driver === "pi") return "Pi";
   return provider.instanceId;
 }