extract ClideAccordion widget, add arrowClockwise icon and codepoint CSV

ClideAccordion — shared accordion section with optional leading widget,
replaces private _AccordionSection in tickets and decisions views.

Phosphor arrowClockwise icon (0xe036) for refresh buttons. Full
codepoint reference CSV (1512 glyphs) at assets/fonts/phosphor/ for
icon lookup without external tools.

Co-Authored-By: Claude <noreply@anthropic.com>

lib/widgets/src/clide_accordion.dart

@@ -0,0 +1,51 @@
+import 'package:clide/kernel/src/theme/controller.dart';
+import 'package:clide/widgets/src/clide_icon.dart';
+import 'package:clide/widgets/src/clide_tappable.dart';
+import 'package:clide/widgets/src/clide_text.dart';
+import 'package:clide/widgets/src/icons/phosphor.dart';
+import 'package:clide/widgets/src/typography.dart';
+import 'package:flutter/widgets.dart';
+
+class ClideAccordion extends StatelessWidget {
+  const ClideAccordion({
+    super.key,
+    required this.label,
+    required this.count,
+    required this.expanded,
+    required this.onToggle,
+    required this.children,
+    this.leading,
+  });
+
+  final String label;
+  final int count;
+  final bool expanded;
+  final VoidCallback onToggle;
+  final List<Widget> children;
+  final Widget? leading;
+
+  @override
+  Widget build(BuildContext context) {
+    final tokens = ClideTheme.of(context).surface;
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        ClideTappable(
+          onTap: onToggle,
+          builder: (ctx, hovered, _) => Padding(
+            padding: const EdgeInsets.only(left: 4, top: 10, bottom: 4),
+            child: Row(
+              children: [
+                ClideIcon(expanded ? PhosphorIcons.caretDown : PhosphorIcons.caretRight, size: 10, color: tokens.globalTextMuted),
+                const SizedBox(width: 6),
+                if (leading != null) ...[leading!, const SizedBox(width: 6)],
+                ClideText('$label · $count', fontSize: clideFontSmall, color: hovered ? tokens.globalForeground : tokens.sidebarSectionHeader, fontFamily: clideMonoFamily),
+              ],
+            ),
+          ),
+        ),
+        if (expanded) ...children,
+      ],
+    );
+  }
+}

lib/widgets/src/icons/phosphor.dart

@@ -42,6 +42,7 @@ abstract class PhosphorIcons {
   static const pencilSimple = PhosphorIconPainter(0xe3b4);
   static const eye = PhosphorIconPainter(0xe220);
   static const eyeSlash = PhosphorIconPainter(0xe224);
+  static const arrowClockwise = PhosphorIconPainter(0xe036);
   static const arrowsOutSimple = PhosphorIconPainter(0xe0a6);
   static const arrowsInSimple = PhosphorIconPainter(0xe09e);
   static const list = PhosphorIconPainter(0xe2f0);

lib/widgets/widgets.dart

@@ -5,6 +5,7 @@
 /// Flutter chrome widgets directly.
 library;
 
+export 'src/clide_accordion.dart';
 export 'src/clide_button.dart';
 export 'src/clide_column_hat.dart';
 export 'src/clide_code_block.dart';