Initial commit — CTile Cinnamon extension

Snap layout overlay for Cinnamon 6.6. Drag a window to the top edge
to reveal a picker with 14 tiling presets (halves, quarters, thirds).
Layout previews use the system theme's accent color and update live
when the theme changes.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

stylesheet.css

@@ -0,0 +1,30 @@
+/* CTile — stylesheet.css */
+
+.ctile-overlay {
+    background-color: rgba(20, 22, 30, 0.92);
+    border-radius: 12px;
+    border: 1px solid rgba(255, 255, 255, 0.10);
+    padding: 10px 12px;
+    spacing: 6px;
+    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
+}
+
+.ctile-row {
+    spacing: 6px;
+}
+
+.ctile-btn {
+    padding: 5px;
+    border-radius: 7px;
+    border: 1px solid transparent;
+    transition-duration: 80ms;
+}
+
+.ctile-btn:hover {
+    background-color: rgba(255, 255, 255, 0.07);
+    border-color: rgba(255, 255, 255, 0.18);
+}
+
+.ctile-canvas {
+    border-radius: 3px;
+}