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

lib/widget/prosemirror/pm_rich_text.dart

@@ -142,7 +142,7 @@ class _PmRichTextState extends State<PmRichText> {
   }
 
   Color _highlightColor(dynamic color, ThemeData theme) {
-    final parsed = color is String ? _parseCssColor(color) : null;
+    final parsed = color is String ? parseCssColor(color) : null;
     final base = parsed ?? theme.colorScheme.tertiaryContainer;
     // Full-opacity highlights swamp the text in dark mode, so dial the alpha
     // down further there while keeping the accent readable in light mode.
@@ -178,19 +178,22 @@ class _PmRichTextState extends State<PmRichText> {
 
 /// Parses a CSS `#rgb`/`#rrggbb`/`#rrggbbaa` hex or a small set of named colors.
 /// Returns `null` for anything unrecognised so the caller can fall back.
-Color? _parseCssColor(String raw) {
+@visibleForTesting
+Color? parseCssColor(String raw) {
   final value = raw.trim().toLowerCase();
   if (value.startsWith('#')) {
     var hex = value.substring(1);
     if (hex.length == 3) {
       hex = hex.split('').map((c) => '$c$c').join();
     }
-    if (hex.length == 6) hex = 'ff$hex';
-    if (hex.length == 8) {
-      final rgba = int.tryParse(hex, radix: 16);
-      if (rgba != null) return Color(rgba);
-    }
-    return null;
+    // CSS puts alpha last, Flutter's Color expects it first.
+    final argb = switch (hex.length) {
+      6 => 'ff$hex',
+      8 => hex.substring(6) + hex.substring(0, 6),
+      _ => null,
+    };
+    final parsed = argb == null ? null : int.tryParse(argb, radix: 16);
+    return parsed == null ? null : Color(parsed);
   }
   return _namedColors[value];
 }