[backport rh-test] subscription panel (#6140)

## Summary

Backport of #6064 (subscription page) to the `rh-test` branch.

This PR manually cherry-picks commit
7e1e8e3b65 to the rh-test branch and
resolves merge conflicts that prevented automatic backporting.

## Conflicts Resolved

### 1. `src/components/actionbar/ComfyActionbar.vue`
- **Conflict**: HEAD (rh-test) used `<ComfyQueueButton />` while the
subscription PR introduced `<ComfyRunButton />`
- **Resolution**: Updated to use `<ComfyRunButton />` to include the
subscription functionality wrapper while maintaining the existing
rh-test template structure

### 2. `src/composables/auth/useFirebaseAuthActions.ts`
- **Conflict**: Simple ordering difference in the return statement
- **Resolution**: Used the subscription PR's ordering: `deleteAccount,
accessError, reportError`

## Testing

The cherry-pick completed successfully and passed all pre-commit hooks:
- ✅ ESLint
- ✅ Prettier formatting
- ⚠️ Note: 2 unused i18n keys detected (informational only, same as
original PR)

## Related

- Original PR: #6064
- Cherry-picked commit: 7e1e8e3b65

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6140-backport-subscription-page-to-rh-test-2916d73d365081f38f00df422004f61a)
by [Unito](https://www.unito.io)

Co-authored-by: Terry Jia <terryjia88@gmail.com>
Co-authored-by: GitHub Action <action@github.com>

src/components/actionbar/ComfyRunButton/ComfyQueueButton.vue

@@ -0,0 +1,157 @@
+<template>
+  <div class="queue-button-group flex">
+    <SplitButton
+      v-tooltip.bottom="{
+        value: workspaceStore.shiftDown
+          ? $t('menu.runWorkflowFront')
+          : $t('menu.runWorkflow'),
+        showDelay: 600
+      }"
+      class="comfyui-queue-button"
+      :label="activeQueueModeMenuItem.label"
+      severity="primary"
+      size="small"
+      :model="queueModeMenuItems"
+      data-testid="queue-button"
+      @click="queuePrompt"
+    >
+      <template #icon>
+        <i v-if="workspaceStore.shiftDown" class="icon-[lucide--list-start]" />
+        <i v-else-if="queueMode === 'disabled'" class="icon-[lucide--play]" />
+        <i
+          v-else-if="queueMode === 'instant'"
+          class="icon-[lucide--fast-forward]"
+        />
+        <i
+          v-else-if="queueMode === 'change'"
+          class="icon-[lucide--step-forward]"
+        />
+      </template>
+      <template #item="{ item }">
+        <Button
+          v-tooltip="{
+            value: item.tooltip,
+            showDelay: 600
+          }"
+          :label="String(item.label)"
+          :icon="item.icon"
+          :severity="item.key === queueMode ? 'primary' : 'secondary'"
+          size="small"
+          text
+        />
+      </template>
+    </SplitButton>
+    <BatchCountEdit />
+    <ButtonGroup class="execution-actions flex flex-nowrap">
+      <Button
+        v-tooltip.bottom="{
+          value: $t('menu.interrupt'),
+          showDelay: 600
+        }"
+        icon="pi pi-times"
+        :severity="executingPrompt ? 'danger' : 'secondary'"
+        :disabled="!executingPrompt"
+        text
+        :aria-label="$t('menu.interrupt')"
+        @click="() => commandStore.execute('Comfy.Interrupt')"
+      />
+      <Button
+        v-tooltip.bottom="{
+          value: $t('sideToolbar.queueTab.clearPendingTasks'),
+          showDelay: 600
+        }"
+        icon="pi pi-stop"
+        :severity="hasPendingTasks ? 'danger' : 'secondary'"
+        :disabled="!hasPendingTasks"
+        text
+        :aria-label="$t('sideToolbar.queueTab.clearPendingTasks')"
+        @click="
+          () => {
+            if (queueCountStore.count.value > 1) {
+              commandStore.execute('Comfy.ClearPendingTasks')
+            }
+            queueMode = 'disabled'
+          }
+        "
+      />
+    </ButtonGroup>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { storeToRefs } from 'pinia'
+import Button from 'primevue/button'
+import ButtonGroup from 'primevue/buttongroup'
+import SplitButton from 'primevue/splitbutton'
+import { computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+import { useCommandStore } from '@/stores/commandStore'
+import {
+  useQueuePendingTaskCountStore,
+  useQueueSettingsStore
+} from '@/stores/queueStore'
+import { useWorkspaceStore } from '@/stores/workspaceStore'
+
+import BatchCountEdit from '../BatchCountEdit.vue'
+
+const workspaceStore = useWorkspaceStore()
+const queueCountStore = storeToRefs(useQueuePendingTaskCountStore())
+const { mode: queueMode } = storeToRefs(useQueueSettingsStore())
+
+const { t } = useI18n()
+const queueModeMenuItemLookup = computed(() => ({
+  disabled: {
+    key: 'disabled',
+    label: t('menu.run'),
+    tooltip: t('menu.disabledTooltip'),
+    command: () => {
+      queueMode.value = 'disabled'
+    }
+  },
+  instant: {
+    key: 'instant',
+    label: `${t('menu.run')} (${t('menu.instant')})`,
+    tooltip: t('menu.instantTooltip'),
+    command: () => {
+      queueMode.value = 'instant'
+    }
+  },
+  change: {
+    key: 'change',
+    label: `${t('menu.run')} (${t('menu.onChange')})`,
+    tooltip: t('menu.onChangeTooltip'),
+    command: () => {
+      queueMode.value = 'change'
+    }
+  }
+}))
+
+const activeQueueModeMenuItem = computed(
+  () => queueModeMenuItemLookup.value[queueMode.value]
+)
+const queueModeMenuItems = computed(() =>
+  Object.values(queueModeMenuItemLookup.value)
+)
+
+const executingPrompt = computed(() => !!queueCountStore.count.value)
+const hasPendingTasks = computed(
+  () => queueCountStore.count.value > 1 || queueMode.value !== 'disabled'
+)
+
+const commandStore = useCommandStore()
+const queuePrompt = async (e: Event) => {
+  const commandId =
+    'shiftKey' in e && e.shiftKey
+      ? 'Comfy.QueuePromptFront'
+      : 'Comfy.QueuePrompt'
+  await commandStore.execute(commandId)
+}
+</script>
+
+<style scoped>
+.comfyui-queue-button :deep(.p-splitbutton-dropdown) {
+  border-top-right-radius: 0;
+  border-bottom-right-radius: 0;
+}
+</style>