change credits icons and tooltips (conditional on feature flag) (#7276)

This PR changes the credits icons and tooltips based on state of the
`subscription_tiers_enabled` feature flag.

When the flag is enabled (or undefined -- for local), the dollar icon is
replaced with the lucide-component icon in UserCredit and node price
badges (Partner Nodes), and a new tooltip row appears in
CurrentUserPopover displaying "Credits have been unified" with a
detailed hover tooltip explaining the credit unification across Partner
Nodes and Cloud workflows.

<img width="539" height="535" alt="image"
src="https://github.com/user-attachments/assets/7e952f9b-0abb-4979-85b7-0eecdeaf808c"
/>

Related:

- https://github.com/Comfy-Org/ComfyUI_frontend/pull/6115 (borrows badge
implementation from this PR)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7276-change-credits-icons-and-tooltips-conditional-on-feature-flag-2c46d73d365081809a6afd5861018a15)
by [Unito](https://www.unito.io)

src/composables/node/usePriceBadge.ts

@@ -1,10 +1,16 @@
 import type { LGraph, LGraphNode } from '@/lib/litegraph/src/litegraph'
 import { LGraphBadge } from '@/lib/litegraph/src/litegraph'
 
+import { useFeatureFlags } from '@/composables/useFeatureFlags'
 import { useColorPaletteStore } from '@/stores/workspace/colorPaletteStore'
 import { adjustColor } from '@/utils/colorUtil'
 
+const componentIconSvg = new Image()
+componentIconSvg.src =
+  "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='oklch(83.01%25 0.163 83.16)' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M15.536 11.293a1 1 0 0 0 0 1.414l2.376 2.377a1 1 0 0 0 1.414 0l2.377-2.377a1 1 0 0 0 0-1.414l-2.377-2.377a1 1 0 0 0-1.414 0zm-13.239 0a1 1 0 0 0 0 1.414l2.377 2.377a1 1 0 0 0 1.414 0l2.377-2.377a1 1 0 0 0 0-1.414L6.088 8.916a1 1 0 0 0-1.414 0zm6.619 6.619a1 1 0 0 0 0 1.415l2.377 2.376a1 1 0 0 0 1.414 0l2.377-2.376a1 1 0 0 0 0-1.415l-2.377-2.376a1 1 0 0 0-1.414 0zm0-13.238a1 1 0 0 0 0 1.414l2.377 2.376a1 1 0 0 0 1.414 0l2.377-2.376a1 1 0 0 0 0-1.414l-2.377-2.377a1 1 0 0 0-1.414 0z'/%3E%3C/svg%3E"
+
 export const usePriceBadge = () => {
+  const { flags } = useFeatureFlags()
   function updateSubgraphCredits(node: LGraphNode) {
     if (!node.isSubgraphNode()) return
     node.badges = node.badges.filter((b) => !isCreditsBadge(b))
@@ -33,34 +39,54 @@ export const usePriceBadge = () => {
   }
 
   function isCreditsBadge(badge: LGraphBadge | (() => LGraphBadge)): boolean {
-    return (
-      (typeof badge === 'function' ? badge() : badge).icon?.unicode === '\ue96b'
-    )
+    const badgeInstance = typeof badge === 'function' ? badge() : badge
+    if (flags.subscriptionTiersEnabled) {
+      return badgeInstance.icon?.image === componentIconSvg
+    } else {
+      return badgeInstance.icon?.unicode === '\ue96b'
+    }
   }
 
   const colorPaletteStore = useColorPaletteStore()
   function getCreditsBadge(price: string): LGraphBadge {
     const isLightTheme = colorPaletteStore.completedActivePalette.light_theme
-    return new LGraphBadge({
-      text: price,
-      iconOptions: {
-        unicode: '\ue96b',
-        fontFamily: 'PrimeIcons',
-        color: isLightTheme
-          ? adjustColor('#FABC25', { lightness: 0.5 })
-          : '#FABC25',
+
+    if (flags.subscriptionTiersEnabled) {
+      return new LGraphBadge({
+        text: price,
+        iconOptions: {
+          image: componentIconSvg,
+          size: 8
+        },
+        fgColor:
+          colorPaletteStore.completedActivePalette.colors.litegraph_base
+            .BADGE_FG_COLOR,
         bgColor: isLightTheme
-          ? adjustColor('#654020', { lightness: 0.5 })
-          : '#654020',
-        fontSize: 8
-      },
-      fgColor:
-        colorPaletteStore.completedActivePalette.colors.litegraph_base
-          .BADGE_FG_COLOR,
-      bgColor: isLightTheme
-        ? adjustColor('#8D6932', { lightness: 0.5 })
-        : '#8D6932'
-    })
+          ? adjustColor('#8D6932', { lightness: 0.5 })
+          : '#8D6932'
+      })
+    } else {
+      return new LGraphBadge({
+        text: price,
+        iconOptions: {
+          unicode: '\ue96b',
+          fontFamily: 'PrimeIcons',
+          color: isLightTheme
+            ? adjustColor('#FABC25', { lightness: 0.5 })
+            : '#FABC25',
+          bgColor: isLightTheme
+            ? adjustColor('#654020', { lightness: 0.5 })
+            : '#654020',
+          fontSize: 8
+        },
+        fgColor:
+          colorPaletteStore.completedActivePalette.colors.litegraph_base
+            .BADGE_FG_COLOR,
+        bgColor: isLightTheme
+          ? adjustColor('#8D6932', { lightness: 0.5 })
+          : '#8D6932'
+      })
+    }
   }
   return {
     getCreditsBadge,