chore: 增强异常输出并在初始化阶段支持管理员上下文模拟

application/common/view/tpl/think_exception.tpl

@@ -83,6 +83,13 @@ $langSet == 'en' && $lang = array_combine(array_keys($lang), array_keys($lang));
     </div>
     <div class="subheader">
         <?=$debug?$message:$lang['The page you are looking for is temporarily unavailable']?>
+        <?php if (isset($exception) && $exception instanceof \Throwable): ?>
+            <div style="font-size:13px;color:#c0392b;text-align:left;margin-top:15px;background:#f9f9f9;padding:10px;border-radius:4px;word-break:break-all;">
+                <strong>Exception:</strong> <?=htmlspecialchars($exception->getMessage())?><br>
+                <strong>File:</strong> <?=htmlspecialchars($exception->getFile())?>:<?=$exception->getLine()?><br>
+                <pre style="font-size:11px;max-height:150px;overflow:auto;margin-top:5px;"><?=htmlspecialchars($exception->getTraceAsString())?></pre>
+            </div>
+        <?php endif; ?>
     </div>
     <div class="hr"></div>
     <div class="context">