refactor: 优化管理员分析面板的图表展示与数据格式化

src/lib/components/admin/AnalyticsPanel.svelte

@@ -25,9 +25,9 @@
 	let d1RowsWritten = $state(0);
 	let r2PayloadSize = $state(0);
 
-	let d1ReadDaily = $derived(d1Data.length > 0 ? d1RowsRead / 30 : 0);
+	let d1ReadDaily = $derived(d1Data.length > 0 ? Math.round(d1RowsRead / 30) : 0);
 	let d1ReadPercent = $derived(d1Data.length > 0 ? (d1ReadDaily / 5000000) * 100 : 0);
-	let d1WriteDaily = $derived(d1Data.length > 0 ? d1RowsWritten / 30 : 0);
+	let d1WriteDaily = $derived(d1Data.length > 0 ? Math.round(d1RowsWritten / 30) : 0);
 	let d1WritePercent = $derived(d1Data.length > 0 ? (d1WriteDaily / 100000) * 100 : 0);
 	let r2Percent = $derived(
 		r2Data.length > 0 ? (r2PayloadSize / (10 * 1024 * 1024 * 1024)) * 100 : 0
@@ -89,7 +89,8 @@
 		const ChartJS = await import('chart.js/auto');
 		const Chart = ChartJS.default || ChartJS;
 
-		const labels = data.map((d: any) => d.dimensions.date);
+		// 格式化日期：去除年份，将 2026-09-27 转为 09-27，降低 X 轴文字密度
+		const labels = data.map((d: any) => d.dimensions.date.substring(5));
 		const requests = data.map((d: any) => d.sum.requests);
 		const pvs = data.map((d: any) => d.sum.pageViews);
 
@@ -136,6 +137,12 @@
 					}
 				},
 				scales: {
+					x: {
+						ticks: {
+							maxRotation: 45,
+							maxTicksLimit: 15 // 最多显示 15 个刻度，避免太拥挤
+						}
+					},
 					y: {
 						type: 'linear',
 						display: true,
@@ -167,7 +174,7 @@
 	function formatNumber(num: number) {
 		if (num >= 1000000) return (num / 1000000).toFixed(1) + 'M';
 		if (num >= 1000) return (num / 1000).toFixed(1) + 'K';
-		return num.toString();
+		return Math.round(num).toString();
 	}
 </script>
 
@@ -587,7 +594,7 @@
 		font-size: 0.75rem;
 		font-weight: 400;
 		background: rgba(0, 0, 0, 0.05);
-		border: 1px solid var(--text-color, #000);
+		border: 1px solid rgba(0, 0, 0, 0.15);
 		padding: 2px 8px;
 		border-radius: 12px;
 		color: var(--text-muted, rgba(0, 0, 0, 0.6));
@@ -607,10 +614,9 @@
 
 	.quota-bar-bg {
 		width: 100%;
-		height: 10px;
-		background: rgba(0, 0, 0, 0.1);
-		border: 1px solid var(--text-color, #000);
-		border-radius: 6px;
+		height: 8px;
+		background: rgba(0, 0, 0, 0.08);
+		border-radius: 4px;
 		overflow: hidden;
 	}