fix(ui): visible ∆ pulse + drop internal codename from version line

Two issues from live feedback:

1. The version label said "v0.7.1 · warm-minimalism". The
   suffix is an internal design-direction codename, not
   user-facing. Drop it — the line now just reads "v0.7.2".

2. The ∆ pulse in live mode used only alpha + blur, which is
   too subtle to register at first glance. Replace with a real
   scale-pulse: the whole mark grows from 0.85x → 1.15x → 0.85x
   over 1.6s. Glow halo blur range expanded (8→22) and alpha
   range widened. The triangle also gets a soft fill on the
   up-beat. Easy to spot from across the room.

Bumps fai_studio 0.7.1 -> 0.7.2.

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

lib/main.dart

@@ -19,7 +19,7 @@ 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 = '0.7.1';
+const String kStudioVersion = '0.7.2';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
@@ -225,7 +225,7 @@ class _Sidebar extends StatelessWidget {
           ),
           const SizedBox(height: 2),
           Text(
-            'v$kStudioVersion · warm-minimalism',
+            'v$kStudioVersion',
             style: FaiTheme.mono(
               size: 10,
               color: theme.colorScheme.primary,

lib/widgets/fai_delta_mark.dart

@@ -112,7 +112,11 @@ class _DeltaPainter extends CustomPainter {
   void paint(Canvas canvas, Size size) {
     final cx = size.width / 2;
     final cy = size.height / 2;
-    final r = size.width * 0.42;
+
+    // In live mode: scale the whole mark between 0.85 and 1.15
+    // so the pulse is visible without staring. Idle stays at 1.0.
+    final scale = mode == FaiDeltaMode.live ? 0.85 + 0.30 * t : 1.0;
+    final r = size.width * 0.36 * scale;
 
     canvas.save();
     canvas.translate(cx, cy);
@@ -127,31 +131,39 @@ class _DeltaPainter extends CustomPainter {
       ..lineTo(-r * cos(pi / 6), r * sin(pi / 6))
       ..close();
 
-    // Glow halo for live / busy mode.
+    // Glow halo. In live mode the glow ring grows with the pulse
+    // and the alpha breathes harder.
     if (mode != FaiDeltaMode.idle) {
       final pulseStrength = mode == FaiDeltaMode.live ? t : 1.0;
       final glow = Paint()
-        ..color = color.withValues(alpha: 0.25 + 0.25 * pulseStrength)
+        ..color = color.withValues(alpha: 0.30 + 0.40 * pulseStrength)
         ..maskFilter =
-            MaskFilter.blur(BlurStyle.normal, 6 + 6 * pulseStrength)
+            MaskFilter.blur(BlurStyle.normal, 8 + 14 * pulseStrength)
         ..style = PaintingStyle.fill;
       canvas.drawPath(path, glow);
     }
 
+    // Filled triangle, brighter on the up-beat for live mode.
+    final fillAlpha = mode == FaiDeltaMode.live ? 0.15 + 0.20 * t : 0.18;
+    final fill = Paint()
+      ..color = color.withValues(alpha: fillAlpha)
+      ..style = PaintingStyle.fill;
+    canvas.drawPath(path, fill);
+
     // Outline stroke.
     final stroke = Paint()
       ..color = color
-      ..strokeWidth = 2
+      ..strokeWidth = 2.2
       ..style = PaintingStyle.stroke
       ..strokeJoin = StrokeJoin.round;
     canvas.drawPath(path, stroke);
 
-    // Inner accent dot — pulses opacity in live mode.
+    // Inner accent dot.
-    final dotAlpha = mode == FaiDeltaMode.live ? 0.4 + 0.6 * t : 1.0;
+    final dotAlpha = mode == FaiDeltaMode.live ? 0.55 + 0.45 * t : 1.0;
     final dot = Paint()
       ..color = color.withValues(alpha: dotAlpha)
       ..style = PaintingStyle.fill;
-    canvas.drawCircle(Offset(0, r * 0.15), r * 0.14, dot);
+    canvas.drawCircle(Offset(0, r * 0.18), r * 0.16, dot);
 
     canvas.restore();
   }

pubspec.yaml

@@ -1,7 +1,7 @@
 name: fai_studio
 description: "F∆I Studio — desktop GUI for the F∆I hub"
 publish_to: 'none'
-version: 0.7.1
+version: 0.7.2
 
 environment:
   sdk: ^3.11.0-200.1.beta