fixed countdown wrap, css rgba colors, stale create-link gate and wired up reply drafts in talk

test/widget/prosemirror/pm_css_color_test.dart

@@ -0,0 +1,29 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:marianum_mobile/widget/prosemirror/pm_rich_text.dart';
+
+void main() {
+  group('parseCssColor', () {
+    test('expands #rgb', () {
+      expect(parseCssColor('#f00'), const Color(0xFFFF0000));
+    });
+
+    test('parses #rrggbb as opaque', () {
+      expect(parseCssColor(' #3B82F6 '), const Color(0xFF3B82F6));
+    });
+
+    test('reads #rrggbbaa with alpha last', () {
+      expect(parseCssColor('#3b82f680'), const Color(0x803B82F6));
+    });
+
+    test('resolves named colors', () {
+      expect(parseCssColor('Red'), const Color(0xFFEF4444));
+    });
+
+    test('rejects malformed input', () {
+      expect(parseCssColor('#12345'), isNull);
+      expect(parseCssColor('#zzzzzz'), isNull);
+      expect(parseCssColor('rgb(0,0,0)'), isNull);
+    });
+  });
+}