fix(ios): ensure capacitor-assets output dirs exist on fresh clones

Gitignored AppIcon.appiconset and Splash.imageset are absent after clone,
which made `capacitor-assets generate --ios` fail (missing paths and
Contents.json). Add ensure_ios_capacitor_asset_directories in common.sh
to mkdir and seed minimal Contents.json when needed; call it from
build-ios.sh before asset generation and from the build:native npm script.
Document the behavior in ios/.gitignore.

ios/.gitignore

@@ -17,6 +17,7 @@ App/App/config.xml
 App/App.xcodeproj/xcuserdata/*.xcuserdatad/
 App/App.xcodeproj/*.xcuserstate
 
-# Generated Icons from capacitor-assets (also Contents.json which is confusing; see BUILDING.md)
+# Generated by capacitor-assets at build time (not in repo). Fresh clones lack these
+# folders; scripts/common.sh ensure_ios_capacitor_asset_directories creates them before generate.
 App/App/Assets.xcassets/AppIcon.appiconset
 App/App/Assets.xcassets/Splash.imageset

package.json

@@ -28,7 +28,7 @@
     "auto-run:electron": "./scripts/auto-run.sh --platform=electron",
     "build:capacitor": "VITE_GIT_HASH=`git log -1 --pretty=format:%h` vite build --mode capacitor --config vite.config.capacitor.mts",
     "build:capacitor:sync": "npm run build:capacitor && npx cap sync && node scripts/restore-local-plugins.js",
-    "build:native": "vite build && npx cap sync && node scripts/restore-local-plugins.js && npx capacitor-assets generate",
+    "build:native": "vite build && npx cap sync && node scripts/restore-local-plugins.js && bash -c 'source scripts/common.sh && ensure_ios_capacitor_asset_directories' && npx capacitor-assets generate",
     "assets:config": "npx tsx scripts/assets-config.ts",
     "assets:validate": "npx tsx scripts/assets-validator.ts",
     "assets:validate:android": "./scripts/build-android.sh --assets-only",

scripts/build-ios.sh

@@ -413,6 +413,7 @@ fi
 # Handle assets-only mode
 if [ "$ASSETS_ONLY" = true ]; then
     log_info "Assets-only mode: generating assets"
+    ensure_ios_capacitor_asset_directories
     safe_execute "Generating assets" "npx capacitor-assets generate --ios" || exit 7
     log_success "Assets generation completed successfully!"
     exit 0
@@ -562,6 +563,7 @@ safe_execute "Installing CocoaPods dependencies" "run_pod_install_with_workaroun
 safe_execute "Syncing with Capacitor" "run_cap_sync_with_workaround" || exit 6
 
 # Step 7: Generate assets
+ensure_ios_capacitor_asset_directories
 safe_execute "Generating assets" "npx capacitor-assets generate --ios" || exit 7
 
 # Step 8: Build iOS app

scripts/common.sh

@@ -337,6 +337,27 @@ parse_args() {
     fi
 }
 
+# iOS: capacitor-assets writes into AppIcon.appiconset and Splash.imageset under
+# Assets.xcassets. Those paths are gitignored (generated). On a fresh clone the
+# folders and Contents.json are missing; the tool opens Contents.json before writing
+# PNGs, so we create minimal asset-catalog stubs when absent.
+ensure_ios_capacitor_asset_directories() {
+    local base="ios/App/App/Assets.xcassets"
+    if [ ! -d "$base" ]; then
+        log_warn "Missing $base — cannot prepare iOS asset directories"
+        return 0
+    fi
+    mkdir -p "$base/AppIcon.appiconset" "$base/Splash.imageset"
+    local minimal_contents='{"images":[],"info":{"author":"xcode","version":1}}'
+    if [ ! -f "$base/AppIcon.appiconset/Contents.json" ]; then
+        printf '%s\n' "$minimal_contents" > "$base/AppIcon.appiconset/Contents.json"
+    fi
+    if [ ! -f "$base/Splash.imageset/Contents.json" ]; then
+        printf '%s\n' "$minimal_contents" > "$base/Splash.imageset/Contents.json"
+    fi
+    log_debug "Ensured iOS capacitor-assets output directories exist"
+}
+
 # Export functions for use in child scripts
 export -f log_info log_success log_warn log_error log_debug log_step
 export -f measure_time print_header print_footer
@@ -345,3 +366,4 @@ export -f safe_execute check_venv get_git_hash
 export -f clean_build_artifacts validate_env_vars
 export -f setup_build_env setup_app_directories load_env_file print_env_vars
 export -f print_usage parse_args
+export -f ensure_ios_capacitor_asset_directories