fix(studio): centre Welcome page content on wide windows

Welcome page used ConstrainedBox(maxWidth: 960) inside a
left-aligned Column, so on the 1440x900 default window
the content hugged the left edge and left ~370 px of
empty space on the right. With Stefan's M4 sidebar
collapsed to 72 px the asymmetry was the dominant visual
in the first thing every operator sees.

Wrap the ConstrainedBox in a Center widget. 960 px stays
an opinionated reading width — long-form prose gets
uncomfortable past ~1100 px — but the slack now splits
evenly so the content sits with ~190 px breathing room
on both sides instead of all on one.

Bumps the editor-package lock pointer to ad2e5b5 (same
0.2.2 version, picks up the extract-with-approval test
commit on top of f8138f3) as a side-effect of the
flutter pub upgrade run during verification.

Version 0.52.2 -> 0.52.3.

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

lib/main.dart

@@ -26,7 +26,7 @@ import 'widgets/widgets.dart';
 /// Studio's own build version. Bump on every UI commit so the
 /// running app self-identifies — visible in the sidebar header
 /// and quick-glance proof that you're seeing the current build.
-const String kStudioVersion = '0.52.2';
+const String kStudioVersion = '0.52.3';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();

lib/pages/welcome.dart

@@ -29,10 +29,7 @@ class WelcomePage extends StatelessWidget {
     final l = AppLocalizations.of(context)!;
     return Scaffold(
       backgroundColor: theme.scaffoldBackgroundColor,
-      appBar: AppBar(
+      appBar: AppBar(titleSpacing: FaiSpace.xl, title: Text(l.navWelcome)),
-        titleSpacing: FaiSpace.xl,
-        title: Text(l.navWelcome),
-      ),
       body: SingleChildScrollView(
         child: Padding(
           padding: const EdgeInsets.fromLTRB(
@@ -41,6 +38,15 @@ class WelcomePage extends StatelessWidget {
             FaiSpace.xl,
             FaiSpace.xxl,
           ),
+          // Center the 960-px content column on wide windows
+          // so the right margin matches the left rather than
+          // dumping all the slack onto one side. 960 px stays
+          // an opinionated reading width — long-form prose
+          // gets uncomfortable past ~1100 px — but on Stefan's
+          // 1440-px default it now sits with ~190 px of
+          // breathing room on both sides instead of 380 px
+          // on the right and 20 px on the left.
+          child: Center(
             child: ConstrainedBox(
               constraints: const BoxConstraints(maxWidth: 960),
               child: Column(
@@ -66,6 +72,7 @@ class WelcomePage extends StatelessWidget {
             ),
           ),
         ),
+      ),
     );
   }
 }
@@ -175,11 +182,7 @@ class _PillarRow extends StatelessWidget {
   Widget build(BuildContext context) {
     final l = AppLocalizations.of(context)!;
     final pillars = <(IconData, String, String)>[
-      (
+      (Icons.hub_outlined, l.welcomePillarHubTitle, l.welcomePillarHubBody),
-        Icons.hub_outlined,
-        l.welcomePillarHubTitle,
-        l.welcomePillarHubBody,
-      ),
       (
         Icons.extension_outlined,
         l.welcomePillarModuleTitle,
@@ -240,11 +243,7 @@ class _Pillar extends StatelessWidget {
   final String title;
   final String body;
 
-  const _Pillar({
+  const _Pillar({required this.icon, required this.title, required this.body});
-    required this.icon,
-    required this.title,
-    required this.body,
-  });
 
   @override
   Widget build(BuildContext context) {
@@ -441,7 +440,9 @@ class _OnboardingChecklistState extends State<_OnboardingChecklist> {
         // Vorher haben wir den Modul-Namen geprüft und damit
         // nie gematcht, obwohl text-extract / text-summarize /
         // text-translate installiert waren.
-        .then((m) => m.any((x) => x.capabilities.any((c) => c.startsWith('text.'))))
+        .then(
+          (m) => m.any((x) => x.capabilities.any((c) => c.startsWith('text.'))),
+        )
         .catchError((_) => false);
     final flow = hub
         .recentEvents(limit: 100)
@@ -527,10 +528,7 @@ class _OnboardingChecklistState extends State<_OnboardingChecklist> {
               children: [
                 for (var i = 0; i < items.length; i++) ...[
                   if (i > 0)
-                    Divider(
+                    Divider(height: 1, color: theme.colorScheme.outlineVariant),
-                      height: 1,
-                      color: theme.colorScheme.outlineVariant,
-                    ),
                   _ChecklistRow(
                     done: items[i].$1,
                     title: items[i].$2,
@@ -568,9 +566,7 @@ class _AllDoneCelebration extends StatelessWidget {
       decoration: BoxDecoration(
         color: FaiColors.success.withValues(alpha: 0.08),
         borderRadius: BorderRadius.circular(FaiRadius.md),
-        border: Border.all(
+        border: Border.all(color: FaiColors.success.withValues(alpha: 0.35)),
-          color: FaiColors.success.withValues(alpha: 0.35),
-        ),
       ),
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
@@ -1033,7 +1029,11 @@ class _DocReaderSheetState extends State<_DocReaderSheet> {
             ),
             child: Row(
               children: [
-                Icon(widget.entry.icon, size: 20, color: theme.colorScheme.primary),
+                Icon(
+                  widget.entry.icon,
+                  size: 20,
+                  color: theme.colorScheme.primary,
+                ),
                 const SizedBox(width: FaiSpace.sm),
                 Expanded(
                   child: Text(
@@ -1065,8 +1065,7 @@ class _DocReaderSheetState extends State<_DocReaderSheet> {
                 }
                 if (snap.hasError) {
                   final err = snap.error;
-                  final structured =
+                  final structured = err is _DocReaderError ? err : null;
-                      err is _DocReaderError ? err : null;
                   return Padding(
                     padding: const EdgeInsets.all(FaiSpace.xxl),
                     child: Column(
@@ -1079,11 +1078,7 @@ class _DocReaderSheetState extends State<_DocReaderSheet> {
                           ),
                         ),
                         const SizedBox(height: FaiSpace.sm),
-                        FaiErrorBox(
+                        FaiErrorBox(error: err, isError: true, maxHeight: 200),
-                          error: err,
-                          isError: true,
-                          maxHeight: 200,
-                        ),
                         if (structured != null) ...[
                           const SizedBox(height: FaiSpace.md),
                           TextButton.icon(

pubspec.lock

@@ -125,7 +125,7 @@ packages:
     description:
       path: "."
       ref: main
-      resolved-ref: f8138f3516098dc03e65fdfa52916885e7e7aeff
+      resolved-ref: ad2e5b50d5201c9b97329b02e2223d6e599545f1
       url: "https://git.flemming.ai/fai/studio-flow-editor"
     source: git
     version: "0.2.2"

pubspec.yaml

@@ -1,7 +1,7 @@
 name: fai_studio
 description: "F∆I Studio — desktop GUI for the F∆I hub"
 publish_to: 'none'
-version: 0.52.2
+version: 0.52.3
 
 environment:
   sdk: ^3.11.0-200.1.beta