Restructured linux to match Windows

windows/templates/Pose2d.java

@@ -0,0 +1,26 @@
+package robot;
+
+/**
+ * Simple 2D pose representation (x, y, heading).
+ * Pure data class - no dependencies.
+ */
+public class Pose2d {
+    public final double x;
+    public final double y;
+    public final double heading;
+    
+    public Pose2d(double x, double y, double heading) {
+        this.x = x;
+        this.y = y;
+        this.heading = heading;
+    }
+    
+    public Pose2d() {
+        this(0, 0, 0);
+    }
+    
+    @Override
+    public String toString() {
+        return String.format("Pose2d(x=%.2f, y=%.2f, heading=%.2f)", x, y, heading);
+    }
+}