fix(ui): preserve '-rc.8' in About dialog despite iOS version sanitisation (rc.8+65)

Two related fixes for the version-display work landed at 97a6ba6:

PROBLEM 1: build counter stuck at +59 on the device.
The user reported the About dialog showed v1.0.0-rc.8+59 even
though pubspec.yaml has been bumping (60 -> 61 -> 62 -> 63 -> 64).
Root cause: Xcode caches ios/Flutter/Generated.xcconfig (which
holds FLUTTER_BUILD_NUMBER) and doesn't regenerate it on Cmd+R
unless inputs change. 'flutter pub get' also doesn't rewrite it.
Only 'flutter build ios' or deleting the file forces regen.

Fix (operational, not code-side): the Generated.xcconfig file on
the Mac was deleted + regenerated and is now at
FLUTTER_BUILD_NUMBER=64, so the next Xcode Run picks up the
correct value. Going forward, if the build counter ever lags
again the workaround is:

    rm ios/Flutter/Generated.xcconfig && flutter pub get

before running from Xcode. We may add this to a build-doc note
or a Makefile target during the rc.8 wrap-up.

PROBLEM 2: 'v1.0.0-rc.8' was being displayed as 'v1.0.0.8'.
CFBundleShortVersionString on iOS rejects non-numeric
characters, so Flutter strips the '-rc.8' suffix to '.8' when
populating Info.plist. package_info_plus.version reflects that
mangled value. CFBundleVersion (the build counter) is passed
through intact, so the issue affects only the semver half.

Fix: split _kAppVersion resolution. Hardcode the semver baseline
as _kSemverBaseline = 'v1.0.0-rc.8' (kept in sync with the git
tag + pubspec semver portion; bumped once per release-candidate
cycle, not per test build). Use package_info_plus for the
'+<buildNumber>' suffix only, where CFBundleVersion survives the
sanitiser unchanged. Final display becomes
'v1.0.0-rc.8+<n>' (e.g. 'v1.0.0-rc.8+65').

flutter analyze: clean.

Build counter 64 -> 65. After Xcode Clean Build Folder + Run the
About dialog should now read 'v1.0.0-rc.8+65' on the iPhone.

apps/chanora_flutter/lib/main.dart

@@ -37,21 +37,29 @@ bool get _isTouchOnlyPttHost {
 }
 
 /// Public version string shown in the About dialog. Resolved at
-/// app init from `package_info_plus`, which reads the platform-
-/// canonical version (iOS `CFBundleShortVersionString` + `CFBundleVersion`,
-/// Android `versionName` + `versionCode`). Flutter populates both
-/// from the SAME `pubspec.yaml` `version:` field, so whatever the
-/// user sees in the About dialog is guaranteed to match the
-/// commit that produced the build they're running. The "+build"
-/// suffix is the post-`+` portion of the pubspec version and
-/// distinguishes successive test builds during the iOS audio
-/// rollout (every test commit bumps the build number).
+/// app init by combining a hardcoded semver baseline (kept in sync
+/// with the git tag and pubspec.yaml's `version:` field) with the
+/// platform-canonical build counter from `package_info_plus`.
 ///
-/// Initialised before `runApp` in `main()`. Falls back to the
-/// hardcoded baseline if `PackageInfo.fromPlatform()` fails
-/// (extremely unlikely — the platform channel call is a simple
-/// constant lookup).
-String _kAppVersion = 'v1.0.0-rc.8';
+/// Why hardcode the semver instead of reading the whole string
+/// from `package_info_plus`: iOS rejects non-numeric characters
+/// in `CFBundleShortVersionString` and Flutter therefore strips
+/// `-rc.8` to `.8` when populating the Info.plist field. The
+/// resulting `1.0.0.8` is technically valid on the App Store but
+/// useless to humans tracking pre-release builds.
+/// `package_info_plus.version` reflects that mangled value. The
+/// build counter (`CFBundleVersion` / Android `versionCode`) does
+/// pass through unmodified, so we use platform info for the
+/// `+<build>` suffix only and pair it with the human-readable
+/// semver baseline that this codebase already maintains as the
+/// canonical release identity.
+///
+/// Bump `_kSemverBaseline` whenever the semver portion of
+/// pubspec.yaml advances (e.g. rc.8 -> rc.9 -> 1.0.0). The
+/// build-counter suffix changes automatically on every pubspec
+/// `+<n>` bump because Flutter writes it into Info.plist.
+const String _kSemverBaseline = 'v1.0.0-rc.8';
+String _kAppVersion = _kSemverBaseline;
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -62,20 +70,22 @@ Future<void> main() async {
   runApp(const ChanoraApp());
 }
 
-/// Populate `_kAppVersion` from the platform manifest. Format is
-/// `v<version>+<build>` (e.g. `v1.0.0-rc.8+60`). The `+<build>` is
-/// the iOS `CFBundleVersion` / Android `versionCode`, kept in
-/// sync with `pubspec.yaml`'s `version: <semver>+<build>`.
+/// Populate `_kAppVersion` by suffixing the platform-canonical
+/// build number to `_kSemverBaseline`. Format:
+/// `v1.0.0-rc.8+<build>` (e.g. `v1.0.0-rc.8+64`). The build
+/// number is iOS `CFBundleVersion` / Android `versionCode`,
+/// kept in sync with pubspec.yaml's `version: <semver>+<build>`.
 Future<void> _resolveAppVersion() async {
   try {
     final info = await PackageInfo.fromPlatform();
-    // info.version  = "1.0.0-rc.8" (CFBundleShortVersionString)
-    // info.buildNumber = "60"        (CFBundleVersion)
+    // info.buildNumber = "64" (CFBundleVersion on iOS; survives
+    // the iOS version-string sanitiser that mangles
+    // CFBundleShortVersionString).
     final build = info.buildNumber.isEmpty ? '' : '+${info.buildNumber}';
-    _kAppVersion = 'v${info.version}$build';
+    _kAppVersion = '$_kSemverBaseline$build';
   } catch (_) {
-    // Keep the hardcoded fallback. Already-correct for the
-    // semver portion; only the build counter is lost.
+    // Keep the hardcoded baseline. The build counter is lost
+    // but the semver stays correct.
   }
 }
 

apps/chanora_flutter/pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.0.0-rc.8+64
+version: 1.0.0-rc.8+65
 
 environment:
   sdk: ^3.11.5