♻️ Refactor thought widgets

lib/widgets/thought/reasoning_section.dart

@@ -0,0 +1,67 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/material.dart';
+import 'package:gap/gap.dart';
+import 'package:material_symbols_icons/material_symbols_icons.dart';
+
+class ReasoningSection extends StatelessWidget {
+  const ReasoningSection({super.key, required this.reasoningChunks});
+
+  final List<String> reasoningChunks;
+
+  @override
+  Widget build(BuildContext context) {
+    if (reasoningChunks.isEmpty) {
+      return const SizedBox.shrink();
+    }
+
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        const Gap(12),
+        Container(
+          padding: const EdgeInsets.all(8),
+          decoration: BoxDecoration(
+            color: Theme.of(context).colorScheme.surfaceContainerHigh,
+            borderRadius: BorderRadius.circular(8),
+          ),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Row(
+                children: [
+                  Icon(
+                    Symbols.psychology,
+                    size: 14,
+                    color: Theme.of(context).colorScheme.primary,
+                  ),
+                  const Gap(4),
+                  Text(
+                    'reasoning'.tr(),
+                    style: Theme.of(context).textTheme.bodySmall!.copyWith(
+                      fontWeight: FontWeight.w600,
+                      color: Theme.of(context).colorScheme.primary,
+                    ),
+                  ),
+                ],
+              ),
+              const Gap(4),
+              ...reasoningChunks.map(
+                (chunk) => Padding(
+                  padding: const EdgeInsets.only(bottom: 4),
+                  child: Text(
+                    chunk,
+                    style: TextStyle(
+                      color: Theme.of(context).colorScheme.onSurfaceVariant,
+                      fontSize: 12,
+                      height: 1.3,
+                    ),
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+}