优化：自动钓鱼卡标签改为柔和灰紫色；工具栏「提议」按钮改为「反馈」

- FishingController: 钓鱼播报内「自动钓鱼卡」标签从高饱和紫色渐变改为低调灰紫底色+深紫字，减少视觉刺激
- toolbar.blade.php: 「提议（待开发）」→「反馈」，链接至 feedback 路由（新标签页打开）

app/Http/Controllers/FishingController.php

@@ -199,9 +199,9 @@ class FishingController extends Controller
         $autoFishingMinutesLeft = $this->shopService->getActiveAutoFishingMinutesLeft($user);
         $promoTag = $autoFishingMinutesLeft > 0
             ? ' <span onclick="window.openShopModal&&window.openShopModal()" '
-            .'style="display:inline-block;margin-left:6px;padding:1px 7px;background:linear-gradient(90deg,#7c3aed,#a855f7);'
-            .'color:#fff;border-radius:10px;font-size:10px;cursor:pointer;font-weight:bold;vertical-align:middle;'
-            .'box-shadow:0 1px 4px rgba(124,58,237,.35);" title="点击购买自动钓鱼卡">🎣 自动钓鱼卡</span>'
+            .'style="display:inline-block;margin-left:6px;padding:1px 7px;background:#e9e4f5;'
+            .'color:#6d4fa8;border-radius:10px;font-size:10px;cursor:pointer;font-weight:bold;vertical-align:middle;'
+            .'border:1px solid #d0c4ec;" title="点击购买自动钓鱼卡">🎣 自动钓鱼卡</span>'
             : '';
 
         $sysMsg = [