diff --git a/backend/internal/setup/setup.go b/backend/internal/setup/setup.go
index 4b1ca7b2..65118161 100644
--- a/backend/internal/setup/setup.go
+++ b/backend/internal/setup/setup.go
@@ -39,8 +39,8 @@ func GetDataDir() string {
 		// Try to check if writable by creating a temp file
 		testFile := dockerDataDir + "/.write_test"
 		if f, err := os.Create(testFile); err == nil {
-			f.Close()
-			os.Remove(testFile)
+			_ = f.Close()
+			_ = os.Remove(testFile)
 			return dockerDataDir
 		}
 	}
diff --git a/frontend/src/components/user/dashboard/UserDashboardStats.vue b/frontend/src/components/user/dashboard/UserDashboardStats.vue
index d375ba88..dfba3a51 100644
--- a/frontend/src/components/user/dashboard/UserDashboardStats.vue
+++ b/frontend/src/components/user/dashboard/UserDashboardStats.vue
@@ -153,6 +153,10 @@ const formatBalance = (b: number) =>
 
 const formatNumber = (n: number) => n.toLocaleString()
 const formatCost = (c: number) => c.toFixed(4)
-const formatTokens = (t: number) => (t >= 1000 ? `${(t / 1000).toFixed(1)}K` : t.toString())
+const formatTokens = (t: number) => {
+  if (t >= 1_000_000) return `${(t / 1_000_000).toFixed(1)}M`
+  if (t >= 1000) return `${(t / 1000).toFixed(1)}K`
+  return t.toString()
+}
 const formatDuration = (ms: number) => ms >= 1000 ? `${(ms / 1000).toFixed(2)}s` : `${ms.toFixed(0)}ms`
 </script>
diff --git a/frontend/src/utils/format.ts b/frontend/src/utils/format.ts
index d54e5015..2dc8da4e 100644
--- a/frontend/src/utils/format.ts
+++ b/frontend/src/utils/format.ts
@@ -174,10 +174,12 @@ export function formatCostFixed(amount: number, fractionDigits: number = 4): str
 }
 
 /**
- * 格式化 token 数量（>=1000 显示为 K，保留 1 位小数）
+ * 格式化 token 数量（>=1M 显示为 M，>=1K 显示为 K，保留 1 位小数）
  * @param tokens token 数量
- * @returns 格式化后的字符串，如 "950", "1.2K"
+ * @returns 格式化后的字符串，如 "950", "1.2K", "3.5M"
  */
 export function formatTokensK(tokens: number): string {
-  return tokens >= 1000 ? `${(tokens / 1000).toFixed(1)}K` : tokens.toString()
+  if (tokens >= 1_000_000) return `${(tokens / 1_000_000).toFixed(1)}M`
+  if (tokens >= 1000) return `${(tokens / 1000).toFixed(1)}K`
+  return tokens.toString()
 }