ci(release): switch macOS and iOS workflows to tag-based triggers

Change both Apple store release workflows to trigger on v* tag push
instead of GitHub release publication, matching the Microsoft Store
workflow pattern. This also removes prerelease checks so builds run
for all tags including prereleases.

.github/workflows/build-ios.yml

@@ -1,7 +1,8 @@
 name: iOS App Store Release on Release
 on:
-  release:
-    types: [published]
+  push:
+    tags:
+      - v*
   workflow_dispatch:
     inputs: {}
 
@@ -12,9 +13,6 @@ jobs:
       UNSPLASH_KEY: ${{ secrets.UNSPLASH_KEY }}
       UNSPLASH_CLIENT_ID: ${{ secrets.UNSPLASH_CLIENT_ID }}
 
-    # TODO: Re-enable pre-release skip once workflow is tested
-    # if: '!github.event.release.prerelease'
-
     steps:
       - uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6
         with:

.github/workflows/build-publish-to-mac-store-on-release.yml

@@ -1,7 +1,8 @@
 name: Mac Store Release on Release
 on:
-  release:
-    types: [published]
+  push:
+    tags:
+      - v*
   workflow_dispatch:
     inputs: {}
 
@@ -12,8 +13,6 @@ jobs:
       UNSPLASH_KEY: ${{ secrets.UNSPLASH_KEY }}
       UNSPLASH_CLIENT_ID: ${{ secrets.UNSPLASH_CLIENT_ID }}
 
-    if: '!github.event.release.prerelease'
-
     steps:
       - name: Harden Runner
         uses: step-security/harden-runner@e3f713f2d8f53843e71c69a996d56f51aa9adfb9 # v2