iOS: dev build variant (org.cdnutter.stemify-dev) for internal tests

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

ios/project.yml

@@ -10,6 +10,9 @@ settings:
     MARKETING_VERSION: "1.0"
     VERSION_LABEL: "1.0 RC 4"
     CURRENT_PROJECT_VERSION: "24"
+    # Dev builds override these (build-ipa.sh dev) so they install next to the release app.
+    APP_ID: org.cdnutter.stemify
+    APP_NAME: Stemify
 targets:
   Stemify:
     type: application
@@ -19,7 +22,7 @@ targets:
       - target: StemifyWidgets
     settings:
       base:
-        PRODUCT_BUNDLE_IDENTIFIER: org.cdnutter.stemify
+        PRODUCT_BUNDLE_IDENTIFIER: $(APP_ID)
         TARGETED_DEVICE_FAMILY: "1"
         ASSETCATALOG_COMPILER_APPICON_NAME: AppIcon
         CODE_SIGN_ENTITLEMENTS: Stemify/Stemify.entitlements
@@ -28,11 +31,12 @@ targets:
       properties:
         com.apple.developer.carplay-audio: true
         com.apple.developer.siri: true
-        com.apple.security.application-groups: [group.org.cdnutter.stemify]
+        com.apple.security.application-groups: [group.$(APP_ID)]
     info:
       path: Stemify/Info.plist
       properties:
-        CFBundleDisplayName: Stemify
+        CFBundleDisplayName: $(APP_NAME)
+        StemifyAppGroup: group.$(APP_ID)
         CFBundleShortVersionString: $(MARKETING_VERSION)
         CFBundleVersion: $(CURRENT_PROJECT_VERSION)
         StemifyVersionLabel: $(VERSION_LABEL)
@@ -63,17 +67,18 @@ targets:
     sources: [Widgets, Shared]
     settings:
       base:
-        PRODUCT_BUNDLE_IDENTIFIER: org.cdnutter.stemify.widgets
+        PRODUCT_BUNDLE_IDENTIFIER: $(APP_ID).widgets
         TARGETED_DEVICE_FAMILY: "1"
         CODE_SIGN_ENTITLEMENTS: Widgets/StemifyWidgets.entitlements
     entitlements:
       path: Widgets/StemifyWidgets.entitlements
       properties:
-        com.apple.security.application-groups: [group.org.cdnutter.stemify]
+        com.apple.security.application-groups: [group.$(APP_ID)]
     info:
       path: Widgets/Info.plist
       properties:
-        CFBundleDisplayName: Stemify
+        CFBundleDisplayName: $(APP_NAME)
+        StemifyAppGroup: group.$(APP_ID)
         CFBundleShortVersionString: $(MARKETING_VERSION)
         CFBundleVersion: $(CURRENT_PROJECT_VERSION)
         NSExtension: