feat: 报销预审会话状态管理与工作台交互增强

- 新增差旅报销会话状态管理与对话模型重构
- 增强风险观测服务与运行时聊天上下文作用域
- 优化工作台图标资源、助理意图识别与摘要工具
- 完善报销创建视图样式与差旅详情页标准调整交互
- 补充风险观测、运行时聊天与报销端点测试覆盖

web/src/components/shared/ConfirmDialog.vue

@@ -99,29 +99,33 @@ function handleCancel() {
 </script>
 
 <style scoped>
-.shared-confirm-mask {
-  position: fixed;
-  inset: 0;
-  z-index: 10020;
-  display: grid;
-  place-items: center;
-  padding: 24px;
-  background: rgba(15, 23, 42, 0.32);
-  backdrop-filter: blur(10px);
-  -webkit-backdrop-filter: blur(10px);
-}
-
-.shared-confirm-card {
-  width: min(480px, 100%);
+.shared-confirm-mask {
+  position: fixed;
+  inset: 0;
+  z-index: 10020;
   display: grid;
+  place-items: center;
+  padding: 20px;
+  background: rgba(15, 23, 42, 0.32);
+  backdrop-filter: blur(10px);
+  -webkit-backdrop-filter: blur(10px);
+}
+
+.shared-confirm-card {
+  width: min(480px, calc(100vw - 40px));
+  max-height: calc(100vh - 40px);
+  max-height: calc(100dvh - 40px);
+  display: flex;
+  flex-direction: column;
   gap: 14px;
   padding: 24px;
   border: 1px solid rgba(var(--theme-primary-rgb, 58, 124, 165), 0.14);
-  border-radius: 8px;
+  border-radius: 4px;
   background:
     radial-gradient(circle at top left, rgba(var(--theme-primary-rgb, 58, 124, 165), 0.10), transparent 36%),
     linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 252, 0.98));
   box-shadow: 0 28px 56px rgba(15, 23, 42, 0.18);
+  overflow: hidden;
 }
 
 .shared-confirm-badge {
@@ -165,12 +169,18 @@ function handleCancel() {
   line-height: 1.7;
 }
 
-.shared-confirm-body {
-  display: grid;
-  gap: 10px;
-}
-
+.shared-confirm-body {
+  display: grid;
+  gap: 10px;
+  min-height: 0;
+  max-height: min(380px, calc(100dvh - 300px));
+  overflow-y: auto;
+  padding-right: 2px;
+  scrollbar-width: thin;
+}
+
 .shared-confirm-actions {
+  flex: 0 0 auto;
   display: flex;
   justify-content: flex-end;
   gap: 10px;
@@ -257,12 +267,22 @@ function handleCancel() {
 
 .shared-confirm-card--compact {
   width: min(360px, 100%);
+  max-height: calc(100vh - 36px);
+  max-height: calc(100dvh - 36px);
   gap: 8px;
   padding: 16px;
-  border-radius: 6px;
+  border-radius: 4px;
   background: #fff;
 }
 
+.shared-confirm-card--review {
+  width: min(560px, calc(100vw - 40px));
+}
+
+.shared-confirm-card--review .shared-confirm-body {
+  max-height: min(420px, calc(100dvh - 292px));
+}
+
 .shared-confirm-card--compact h4 {
   font-size: 15px;
   line-height: 1.35;
@@ -287,16 +307,23 @@ function handleCancel() {
 
 @media (max-width: 720px) {
   .shared-confirm-mask {
-    padding: 18px;
-  }
-
-  .shared-confirm-card {
-    padding: 20px;
-    border-radius: 8px;
+    padding: 14px;
   }
-
-  .shared-confirm-card h4 {
-    font-size: 19px;
+
+  .shared-confirm-card {
+    width: min(100%, calc(100vw - 28px));
+    max-height: calc(100vh - 28px);
+    max-height: calc(100dvh - 28px);
+    padding: 20px;
+    border-radius: 4px;
+  }
+
+  .shared-confirm-body {
+    max-height: min(360px, calc(100dvh - 260px));
+  }
+
+  .shared-confirm-card h4 {
+    font-size: 19px;
   }
 
   .shared-confirm-actions {