fix(ios): resolve instant launch crash and header tap-to-scroll conflict on iOS 26+

[sporaktu]

Summary

TestFlight v4.0.3(6) crashed instantly on launch with an uncaught NSUnknownKeyException:

[<RCTView> valueForUndefinedKey:]: this class is not key value coding-compliant for the key reactPropHandler.

Root cause: react-native-ios-utilities@5.1.2 / react-native-ios-context-menu@3.1.0 (zeego's iOS backend) declare codegenConfig.componentProvider at the wrong level — RN moved it under codegenConfig.ios. Codegen never maps RNIContextMenuView/RNIDetachedView to native classes, Fabric falls back to a plain RCTView, and the libraries' Paper-era prop remap (RCT_REMAP_VIEW_PROPERTY(prop, reactPropHandler.prop, …)) KVCs against it and aborts. The home feed wraps every post in a zeego context menu, so the app died on first render. v4.0.3 was the first iOS binary to contain zeego (v4.0.2 never cleared pod install), which is why the crash appeared now.

Second fix riding along: iOS 26+ added a system nav-bar tap-to-scroll-to-top gesture that RN Pressables can't consume, so tapping the subreddit switcher title opened the menu and scrolled the feed to top.

Changes

• Pin react-native-ios-utilities@5.2.0 (contains upstream PR #27) and react-native-ios-context-menu@3.2.1, which nest componentProvider under ios. Exact pins (no caret) because upstream publishes are source-only and drift is unsafe.
• npm overrides so zeego 3.0.6's exact peer pins resolve to the bumped versions — without them npm ci fails ERESOLVE on EAS.
• patch-package + postinstall: patch react-native-screens@4.23.0 with a backport of unreleased software-mansion/react-native-screens#3731 — a guard UITapGestureRecognizer on header title/center subviews that defeats the system scroll-to-top for taps on the custom title only. Applied on all idioms (behavior exists on iPhone in iOS 26/27; upstream gates to iPad) without the new codegen prop.
• The eas.json RN-from-source env vars remain required: riu 5.2.0's podspec still hard-depends on the RCT-Folly pod (the guarded fix is only in the unpublished v5.2.1 tag).

Test Plan

• Local Release build (RN from source, matching the production profile env) installed on iPhone (iOS 27): app launches and stays alive — previously aborted <1s
• Feed renders; long-press native context menus on posts work (exercises the bumped libraries)
• Subreddit-name tap opens the switcher without scrolling; tapping elsewhere in the top bar still scrolls to top
• jest 171/171, tsc clean
• Clean-room npm ci from the new lockfile: resolves 5.2.0/3.2.1 (no ERESOLVE error) and postinstall applies the RNS patch
• EAS production build + TestFlight smoke test after merge (cut v4.0.4)

🤖 Generated with Claude Code