feat: Add floating window system for canvas components

- Add WindowContainer.vue with Liquid Glass styling, drag, resize, close
- Add windows store for managing window state (position, size, z-index)
- Modify dynamicComponents.ts to wrap Vue components in floating windows
- Add MCP tools: move_window, resize_window, close_window, list_windows
- Add isolated Claude profiles (ejecutor, nucleo000) with versioned configs

frontend/src/components/Canvas.vue

@@ -63,13 +63,15 @@ onUnmounted(() => {
   display: flex;
   flex-direction: column;
   background: var(--bg-primary);
-  overflow: auto;
+  overflow: hidden;
+  position: relative;
 }
 
 .canvas-content {
   flex: 1;
-  padding: 1.5rem;
+  position: relative;
   min-height: 100%;
+  overflow: hidden;
 }
 
 .canvas-placeholder {