chore(client): fix tooltip provider lookup and desktop middle-tap

Both failures broke Tests (Client) on main. reka-ui tooltip parts inject a provider
context that only App.vue supplies, so any spec mounting a subtree threw; the tooltip
primitive now stands in its own provider when none is in scope. The foliate click
handler's final else had no isMobile guard, letting a desktop middle-zone tap toggle
the reader chrome. Also record the v3.0.0 server floor beside the App Store badge.

client/src/components/ui/tooltip/Tooltip.vue

@@ -1,15 +1,27 @@
 <script setup lang="ts">
 import type { TooltipRootEmits, TooltipRootProps } from 'reka-ui'
-import { TooltipRoot, useForwardPropsEmits } from 'reka-ui'
+import { injectTooltipProviderContext, TooltipRoot, useForwardPropsEmits } from 'reka-ui'
+import TooltipProvider from './TooltipProvider.vue'
 
 const props = defineProps<TooltipRootProps>()
 const emits = defineEmits<TooltipRootEmits>()
 
 const forwarded = useForwardPropsEmits(props, emits)
+
+// Every reka-ui tooltip part injects the provider context and throws when it is missing. App.vue
+// wraps the whole application in one, so the only callers that land here are trees mounted outside
+// it, which is what a component test does. Standing in a provider keeps those trees rendering
+// instead of failing, and the app's own provider still wins wherever it is in scope.
+const providerInScope = injectTooltipProviderContext(null) !== null
 </script>
 
 <template>
-  <TooltipRoot v-slot="slotProps" data-slot="tooltip" v-bind="forwarded">
+  <TooltipRoot v-if="providerInScope" v-slot="slotProps" data-slot="tooltip" v-bind="forwarded">
     <slot v-bind="slotProps" />
   </TooltipRoot>
+  <TooltipProvider v-else>
+    <TooltipRoot v-slot="slotProps" data-slot="tooltip" v-bind="forwarded">
+      <slot v-bind="slotProps" />
+    </TooltipRoot>
+  </TooltipProvider>
 </template>

client/src/features/reader/epub/composables/useFoliateInput.ts

@@ -276,7 +276,9 @@ export function useFoliateInput(
         isNavigating = true
         navigateRight()
         setTimeout(() => (isNavigating = false), 300)
-      } else {
+      } else if (isMobile) {
+        // Touch has no page zones: any tap that is not a double tap toggles the chrome. On a
+        // pointer device the middle zone is deliberately inert, so it must not fall through here.
         onMiddleTap?.()
       }
     }, DOUBLE_CLICK_MS)