[feat] Replace NodeOptions with PrimeVue ContextMenu (#7114)

## Summary
- Add `NodeContextMenu.vue` using PrimeVue ContextMenu component with
native submenu support
- Rename `SubmenuPopover.vue` to `ColorPickerMenu.vue` (specialized for
color picker)
- Delete old components: `NodeOptions.vue`, `MenuOptionItem.vue`,
`useSubmenuPositioning.ts`
- Wire up context menu converter in `useMoreOptionsMenu.ts`
- Update tests to use hover instead of click for submenus

## Dependencies
**This PR depends on #7113** - the context menu converter infrastructure
PR. It should be merged after that PR.

## Benefits
- Native PrimeVue submenu support with proper keyboard navigation
- Constrained menu dimensions with overflow scrolling (max-h-[80vh])
- Cleaner component architecture with ~280 fewer lines of code
- Better separation: ColorPickerMenu handles only the custom color
picker UI

## Test plan
- [x] Typecheck passes
- [x] Lint passes
- [x] Knip passes
- [ ] Browser tests for submenu interactions pass
- [ ] Manual testing of node context menu

## Screenshots
(Menu UI should look the same, with improved submenu behavior)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7114-feat-Replace-NodeOptions-with-PrimeVue-ContextMenu-2be6d73d365081fda576fd691175eacf)
by [Unito](https://www.unito.io)

---------

Co-authored-by: GitHub Action <action@github.com>

src/components/graph/NodeContextMenu.vue

@@ -0,0 +1,272 @@
+<template>
+  <ContextMenu
+    ref="contextMenu"
+    :model="menuItems"
+    class="max-h-[80vh] md:max-h-none overflow-y-auto md:overflow-y-visible"
+    @show="onMenuShow"
+    @hide="onMenuHide"
+  >
+    <template #item="{ item, props, hasSubmenu }">
+      <a
+        v-bind="props.action"
+        class="flex items-center gap-2 px-3 py-1.5"
+        @click="item.isColorSubmenu ? showColorPopover($event) : undefined"
+      >
+        <i v-if="item.icon" :class="[item.icon, 'size-4']" />
+        <span class="flex-1">{{ item.label }}</span>
+        <span
+          v-if="item.shortcut"
+          class="flex h-3.5 min-w-3.5 items-center justify-center rounded bg-interface-menu-keybind-surface-default px-1 py-0 text-xs"
+        >
+          {{ item.shortcut }}
+        </span>
+        <i
+          v-if="hasSubmenu || item.isColorSubmenu"
+          class="icon-[lucide--chevron-right] size-4 opacity-60"
+        />
+      </a>
+    </template>
+  </ContextMenu>
+
+  <!-- Color picker menu (custom with color circles) -->
+  <ColorPickerMenu
+    v-if="colorOption"
+    ref="colorPickerMenu"
+    key="color-picker-menu"
+    :option="colorOption"
+    @submenu-click="handleColorSelect"
+  />
+</template>
+
+<script setup lang="ts">
+import { useElementBounding, useEventListener, useRafFn } from '@vueuse/core'
+import ContextMenu from 'primevue/contextmenu'
+import type { MenuItem } from 'primevue/menuitem'
+import { computed, onMounted, onUnmounted, ref, watchEffect } from 'vue'
+
+import {
+  registerNodeOptionsInstance,
+  useMoreOptionsMenu
+} from '@/composables/graph/useMoreOptionsMenu'
+import type {
+  MenuOption,
+  SubMenuOption
+} from '@/composables/graph/useMoreOptionsMenu'
+import { useCanvasStore } from '@/renderer/core/canvas/canvasStore'
+
+import ColorPickerMenu from './selectionToolbox/ColorPickerMenu.vue'
+
+interface ExtendedMenuItem extends MenuItem {
+  isColorSubmenu?: boolean
+  shortcut?: string
+  originalOption?: MenuOption
+}
+
+const contextMenu = ref<InstanceType<typeof ContextMenu>>()
+const colorPickerMenu = ref<InstanceType<typeof ColorPickerMenu>>()
+const isOpen = ref(false)
+
+const { menuOptions, bump } = useMoreOptionsMenu()
+const canvasStore = useCanvasStore()
+
+// World position (canvas coordinates) where menu was opened
+const worldPosition = ref({ x: 0, y: 0 })
+
+// Get canvas bounding rect reactively
+const lgCanvas = canvasStore.getCanvas()
+const { left: canvasLeft, top: canvasTop } = useElementBounding(lgCanvas.canvas)
+
+// Track last canvas transform to detect actual changes
+let lastScale = 0
+let lastOffsetX = 0
+let lastOffsetY = 0
+
+// Update menu position based on canvas transform
+const updateMenuPosition = () => {
+  if (!isOpen.value) return
+
+  const menuInstance = contextMenu.value as unknown as {
+    container?: HTMLElement
+  }
+  const menuEl = menuInstance?.container
+  if (!menuEl) return
+
+  const { scale, offset } = lgCanvas.ds
+
+  // Only update if canvas transform actually changed
+  if (
+    scale === lastScale &&
+    offset[0] === lastOffsetX &&
+    offset[1] === lastOffsetY
+  ) {
+    return
+  }
+
+  lastScale = scale
+  lastOffsetX = offset[0]
+  lastOffsetY = offset[1]
+
+  // Convert world position to screen position
+  const screenX = (worldPosition.value.x + offset[0]) * scale + canvasLeft.value
+  const screenY = (worldPosition.value.y + offset[1]) * scale + canvasTop.value
+
+  // Update menu position
+  menuEl.style.left = `${screenX}px`
+  menuEl.style.top = `${screenY}px`
+}
+
+// Sync with canvas transform using requestAnimationFrame
+const { resume: startSync, pause: stopSync } = useRafFn(updateMenuPosition, {
+  immediate: false
+})
+
+// Start/stop syncing based on menu visibility
+watchEffect(() => {
+  if (isOpen.value) {
+    startSync()
+  } else {
+    stopSync()
+  }
+})
+
+// Close on touch outside to handle mobile devices where click might be swallowed
+useEventListener(
+  window,
+  'touchstart',
+  (event: TouchEvent) => {
+    if (!isOpen.value || !contextMenu.value) return
+
+    const target = event.target as Node
+    const contextMenuInstance = contextMenu.value as unknown as {
+      container?: HTMLElement
+      $el?: HTMLElement
+    }
+    const menuEl = contextMenuInstance.container || contextMenuInstance.$el
+
+    if (menuEl && !menuEl.contains(target)) {
+      hide()
+    }
+  },
+  { passive: true }
+)
+
+// Find color picker option
+const colorOption = computed(() =>
+  menuOptions.value.find((opt) => opt.isColorPicker)
+)
+
+// Check if option is the color picker
+function isColorOption(option: MenuOption): boolean {
+  return Boolean(option.isColorPicker)
+}
+
+// Convert MenuOption to PrimeVue MenuItem
+function convertToMenuItem(option: MenuOption): ExtendedMenuItem {
+  if (option.type === 'divider') return { separator: true }
+
+  const isColor = isColorOption(option)
+
+  const item: ExtendedMenuItem = {
+    label: option.label,
+    icon: option.icon,
+    disabled: option.disabled,
+    shortcut: option.shortcut,
+    isColorSubmenu: isColor,
+    originalOption: option
+  }
+
+  // Native submenus for non-color options
+  if (option.hasSubmenu && option.submenu && !isColor) {
+    item.items = option.submenu.map((sub) => ({
+      label: sub.label,
+      icon: sub.icon,
+      disabled: sub.disabled,
+      command: () => {
+        sub.action()
+        hide()
+      }
+    }))
+  }
+
+  // Regular action items
+  if (!option.hasSubmenu && option.action) {
+    item.command = () => {
+      option.action?.()
+      hide()
+    }
+  }
+
+  return item
+}
+
+// Build menu items
+const menuItems = computed<ExtendedMenuItem[]>(() =>
+  menuOptions.value.map(convertToMenuItem)
+)
+
+// Show context menu
+function show(event: MouseEvent) {
+  bump()
+
+  // Convert screen position to world coordinates
+  // Screen position relative to canvas = event position - canvas offset
+  const screenX = event.clientX - canvasLeft.value
+  const screenY = event.clientY - canvasTop.value
+
+  // Convert to world coordinates using canvas transform
+  const { scale, offset } = lgCanvas.ds
+  worldPosition.value = {
+    x: screenX / scale - offset[0],
+    y: screenY / scale - offset[1]
+  }
+
+  isOpen.value = true
+  contextMenu.value?.show(event)
+}
+
+// Hide context menu
+function hide() {
+  contextMenu.value?.hide()
+}
+
+function toggle(event: Event) {
+  if (isOpen.value) {
+    hide()
+  } else {
+    show(event as MouseEvent)
+  }
+}
+
+defineExpose({ toggle, hide, isOpen, show })
+
+function showColorPopover(event: MouseEvent) {
+  event.stopPropagation()
+  event.preventDefault()
+  const target = Array.from((event.currentTarget as HTMLElement).children).find(
+    (el) => el.classList.contains('icon-[lucide--chevron-right]')
+  ) as HTMLElement
+  colorPickerMenu.value?.toggle(event, target)
+}
+
+// Handle color selection
+function handleColorSelect(subOption: SubMenuOption) {
+  subOption.action()
+  hide()
+}
+
+function onMenuShow() {
+  isOpen.value = true
+}
+
+function onMenuHide() {
+  isOpen.value = false
+}
+
+onMounted(() => {
+  registerNodeOptionsInstance({ toggle, hide, isOpen })
+})
+
+onUnmounted(() => {
+  registerNodeOptionsInstance(null)
+})
+</script>