Decouple node help between sidebar and right panel (#8110)

## Summary

When the node library is open and you click on the node toolbar info
button, this causes the node library info panel & right panel node info
to show the same details.

## Changes

- Extract useNodeHelpContent composable so NodeHelpContent fetches its
own content, allowing multiple panels to show help independently
- Remove sync behavior from NodeHelpPage that caused left sidebar to
change when selecting different graph nodes since we want to prioritise
right panel for this behavior
- Add telemetry tracking for node library help button to identify how
frequently this is used

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-8110-Decouple-node-help-between-sidebar-and-right-panel-2ea6d73d365081a9b3afd25aa51b34bd)
by [Unito](https://www.unito.io)

src/components/sidebar/tabs/nodeLibrary/NodeHelpPage.test.ts

@@ -1,100 +0,0 @@
-import { flushPromises, mount } from '@vue/test-utils'
-import { computed, ref } from 'vue'
-import { beforeEach, describe, expect, test, vi } from 'vitest'
-
-import NodeHelpPage from '@/components/sidebar/tabs/nodeLibrary/NodeHelpPage.vue'
-import { useSelectionState } from '@/composables/graph/useSelectionState'
-import { useNodeHelpStore } from '@/stores/workspace/nodeHelpStore'
-
-vi.mock('@/composables/graph/useSelectionState')
-vi.mock('@/stores/workspace/nodeHelpStore')
-
-const baseNode = {
-  nodePath: 'NodeA',
-  display_name: 'Node A',
-  description: '',
-  inputs: {},
-  outputs: []
-}
-
-describe('NodeHelpPage', () => {
-  const selection = ref<any | null>(null)
-  let openHelp: ReturnType<typeof vi.fn>
-
-  const mountPage = () =>
-    mount(NodeHelpPage, {
-      props: { node: baseNode as any },
-      global: {
-        mocks: {
-          $t: (key: string) => key
-        },
-        stubs: {
-          ProgressSpinner: true,
-          Button: true
-        }
-      }
-    })
-
-  beforeEach(() => {
-    vi.resetAllMocks()
-    selection.value = null
-    openHelp = vi.fn()
-
-    vi.mocked(useSelectionState).mockReturnValue({
-      nodeDef: computed(() => selection.value)
-    } as any)
-
-    vi.mocked(useNodeHelpStore).mockReturnValue({
-      renderedHelpHtml: ref('<p>help</p>'),
-      isLoading: ref(false),
-      error: ref(null),
-      isHelpOpen: true,
-      currentHelpNode: { nodePath: 'NodeA' },
-      openHelp,
-      closeHelp: vi.fn()
-    } as any)
-  })
-
-  test('opens help for a newly selected node while help is open', async () => {
-    const wrapper = mountPage()
-
-    selection.value = { nodePath: 'NodeB' }
-    await flushPromises()
-
-    expect(openHelp).toHaveBeenCalledWith({ nodePath: 'NodeB' })
-
-    wrapper.unmount()
-  })
-
-  test('does not reopen help when the same node stays selected', async () => {
-    const wrapper = mountPage()
-
-    selection.value = { nodePath: 'NodeA' }
-    await flushPromises()
-
-    expect(openHelp).not.toHaveBeenCalled()
-
-    wrapper.unmount()
-  })
-
-  test('does not react to selection when help is closed', async () => {
-    vi.mocked(useNodeHelpStore).mockReturnValueOnce({
-      renderedHelpHtml: ref('<p>help</p>'),
-      isLoading: ref(false),
-      error: ref(null),
-      isHelpOpen: false,
-      currentHelpNode: null,
-      openHelp,
-      closeHelp: vi.fn()
-    } as any)
-
-    const wrapper = mountPage()
-
-    selection.value = { nodePath: 'NodeB' }
-    await flushPromises()
-
-    expect(openHelp).not.toHaveBeenCalled()
-
-    wrapper.unmount()
-  })
-})

src/components/sidebar/tabs/nodeLibrary/NodeHelpPage.vue

@@ -21,32 +21,13 @@
 </template>
 
 <script setup lang="ts">
-import { whenever } from '@vueuse/core'
-import { computed } from 'vue'
-
 import NodeHelpContent from '@/components/node/NodeHelpContent.vue'
 import Button from '@/components/ui/button/Button.vue'
-import { useSelectionState } from '@/composables/graph/useSelectionState'
 import type { ComfyNodeDefImpl } from '@/stores/nodeDefStore'
-import { useNodeHelpStore } from '@/stores/workspace/nodeHelpStore'
 
 const { node } = defineProps<{ node: ComfyNodeDefImpl }>()
 
 defineEmits<{
   (e: 'close'): void
 }>()
-
-const nodeHelpStore = useNodeHelpStore()
-const { nodeDef } = useSelectionState()
-
-const activeHelpDef = computed(() =>
-  nodeHelpStore.isHelpOpen ? nodeDef.value : null
-)
-
-// Keep the open help page synced with the current selection while help is open.
-whenever(activeHelpDef, (def) => {
-  const currentHelpNode = nodeHelpStore.currentHelpNode
-  if (currentHelpNode?.nodePath === def.nodePath) return
-  nodeHelpStore.openHelp(def)
-})
 </script>

src/components/sidebar/tabs/nodeLibrary/NodeTreeLeaf.vue

@@ -57,7 +57,7 @@
           variant="muted-textonly"
           size="icon-sm"
           :aria-label="$t('g.learnMore')"
-          @click.stop="props.openNodeHelp(nodeDef)"
+          @click.stop="onHelpClick"
         >
           <i class="pi pi-question size-3.5" />
         </Button>
@@ -85,6 +85,7 @@ import TreeExplorerTreeNode from '@/components/common/TreeExplorerTreeNode.vue'
 import NodePreview from '@/components/node/NodePreview.vue'
 import Button from '@/components/ui/button/Button.vue'
 import { useSettingStore } from '@/platform/settings/settingStore'
+import { useTelemetry } from '@/platform/telemetry'
 import { useNodeBookmarkStore } from '@/stores/nodeBookmarkStore'
 import type { ComfyNodeDefImpl } from '@/stores/nodeDefStore'
 import { useSubgraphStore } from '@/stores/subgraphStore'
@@ -112,6 +113,13 @@ const sidebarLocation = computed<'left' | 'right'>(() =>
 const toggleBookmark = async () => {
   await nodeBookmarkStore.toggleBookmark(nodeDef.value)
 }
+
+const onHelpClick = () => {
+  useTelemetry()?.trackUiButtonClicked({
+    button_id: 'node_library_help_button'
+  })
+  props.openNodeHelp(nodeDef.value)
+}
 const editBlueprint = async () => {
   if (!props.node.data)
     throw new Error(