1.2.0: localized App Store screenshots (es/de/fr/it/pt-BR) + 1.2.0 release notes

- Caption-localized the 5 iPhone 6.7" + 5 iPad 12.9" screenshots into the 5
  non-English locales, reusing the en-US framed captures (in-frame UI stays EN).
  Tooling in fastlane/screenshot_localize/ (Pillow: repaints the pastel caption
  band, re-renders headline/subtitle in SF Pro; auto-fits + wraps per language).
- Rewrote release_notes 1.2.0 in all 6 languages: since 1.1.5 never shipped
  publicly (last public = 1.1.4), the notes consolidate 1.1.5 + 1.2.0 features.
- Fastfile: new `publish` lane — uploads metadata + screenshots for an existing
  TestFlight build (skip_binary_upload, no submit) so offer codes can be set up
  before submission.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BkanrydYtrme8wipTzWssG

fastlane/Fastfile

@@ -38,6 +38,26 @@ platform :ios do
     )
   end
 
+  desc "Upload metadata + localized screenshots for an existing TestFlight build (no rebuild, no submit)"
+  lane :publish do |options|
+    version = options[:version] || "1.2.0"
+    build   = options[:build]   || "55"
+    upload_to_app_store(
+      api_key: asc_api_key,
+      app_version: version,
+      build_number: build,
+      skip_binary_upload: true,
+      skip_metadata: false,
+      skip_screenshots: false,
+      overwrite_screenshots: true,
+      submit_for_review: false,
+      automatic_release: false,
+      precheck_include_in_app_purchases: false,
+      force: true,
+      run_precheck_before_submit: false
+    )
+  end
+
   desc "Push a new release build to the App Store"
   lane :release do
     increment_build_number(xcodeproj: "MealMood.xcodeproj")