feat: 新增站点外观自定义配置与首页主图显示功能

src/lib/components/admin/FeaturedImagePicker.svelte

@@ -2,7 +2,17 @@
 	import { addToast } from '$lib/stores/toast.svelte';
 	import Tabs from './Tabs.svelte';
 
-	let { cover = $bindable('') } = $props<{ cover?: string | null }>();
+	let {
+		cover = $bindable(''),
+		title = '特色图',
+		inputName = 'cover',
+		aspectRatio = '16/9'
+	} = $props<{
+		cover?: string | null;
+		title?: string;
+		inputName?: string;
+		aspectRatio?: string;
+	}>();
 
 	let activeTab = $state('url');
 	let isUploading = $state(false);
@@ -80,11 +90,13 @@
 </script>
 
 <div class="sidebar-box">
-	<h3>特色图</h3>
+	{#if title}
+		<h3>{title}</h3>
+	{/if}
 	
 	{#if cover}
 		<div class="cover-preview">
-			<img src={cover} alt="特色图预览" />
+			<img src={cover} alt="图片预览" style:aspect-ratio={aspectRatio} />
 			<button type="button" class="btn-clear" onclick={() => cover = ''}>移除</button>
 		</div>
 	{/if}
@@ -133,7 +145,7 @@
 	</div>
 
 	<!-- 隐藏表单项，随大表单一起提交 -->
-	<input type="hidden" name="cover" value={cover || ''} />
+	<input type="hidden" name={inputName} value={cover || ''} />
 </div>
 
 <style>
@@ -158,8 +170,8 @@
 		width: 100%;
 		height: auto;
 		display: block;
-		aspect-ratio: 16/9;
-		object-fit: cover;
+		object-fit: contain;
+		max-height: 280px;
 	}
 
 	.btn-clear {

src/routes/+layout.server.ts

@@ -12,7 +12,9 @@ export const load: LayoutServerLoad = async ({ platform }) => {
 
 	let site = {
 		title: 'BlogFlare',
-		description: 'A high-performance blog powered by Cloudflare D1, R2, and KV.'
+		description: 'A high-performance blog powered by Cloudflare D1, R2, and KV.',
+		avatar_enabled: 'true',
+		avatar_url: ''
 	};
 
 	if (db) {

src/routes/+layout.svelte

@@ -45,12 +45,13 @@
 			</nav>
 		</div>
 	</header>
-
 	{#if $page.url.pathname === '/'}
 	<div class="home-profile">
+		{#if $page.data.site?.avatar_enabled !== 'false'}
 		<div class="home-avatar">
-			<img src="data:image/png;base64,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 truncated
+			<img src={$page.data.site?.avatar_url || "data:image/png;base64,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 truncated
 		</div>
+		{/if}
 		<h1 class="home-title">{$page.data.site?.title || 'BlogFlare'}</h1>
 		<p class="home-subtitle">{$page.data.site?.description || 'A high-performance blog powered by Cloudflare D1, R2, and KV.'}</p>
 	</div>

src/routes/admin/settings/+page.server.ts

@@ -74,5 +74,32 @@ export const actions: Actions = {
 			console.error('Failed to update aliases', e);
 			return fail(500, { error: '保存失败' });
 		}
+	},
+	updateAppearance: async ({ request, platform }) => {
+		const db = platform?.env?.DB;
+		if (!db) return fail(500, { error: '数据库未连接' });
+
+		const data = await request.formData();
+		const avatarEnabled = data.get('site_avatar_enabled')?.toString() === 'true' ? 'true' : 'false';
+		const avatarUrl = data.get('site_avatar_url')?.toString() || '';
+
+		const updates = [
+			{ key: 'site.avatar_enabled', value: avatarEnabled },
+			{ key: 'site.avatar_url', value: avatarUrl }
+		];
+
+		try {
+			for (const { key, value } of updates) {
+				await db.prepare(
+					`INSERT INTO settings (key, value, updated_at) 
+					 VALUES (?, ?, CURRENT_TIMESTAMP) 
+					 ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = CURRENT_TIMESTAMP`
+				).bind(key, value).run();
+			}
+			return { success: true };
+		} catch (e) {
+			console.error('Failed to update appearance', e);
+			return fail(500, { error: '保存外观偏好失败' });
+		}
 	}
 };

src/routes/admin/settings/+page.svelte

@@ -3,10 +3,14 @@
 	import { enhance } from '$app/forms';
 	import { addToast } from '$lib/stores/toast.svelte';
 	import Tabs from '$lib/components/admin/Tabs.svelte';
+	import ImagePicker from '$lib/components/admin/FeaturedImagePicker.svelte';
 
 	let { data, form }: { data: PageData; form: ActionData } = $props();
 	let activeTab = $state('basic');
 	
+	let avatarEnabled = $state(data.settings['site.avatar_enabled'] !== 'false');
+	let avatarUrl = $state(data.settings['site.avatar_url'] || '');
+
 	$effect(() => {
 		if (form?.success) {
 			addToast('设置保存成功！', 'success');
@@ -23,6 +27,7 @@
 <Tabs 
 	tabs={[
 		{ id: 'basic', label: '基础信息' },
+		{ id: 'appearance', label: '外观与主页' },
 		{ id: 'terms', label: '术语设定' },
 		{ id: 'system', label: '系统与安全' }
 	]} 
@@ -60,6 +65,38 @@
 	</div>
 	{/if}
 
+	{#if activeTab === 'appearance'}
+	<div class="settings-card full-width">
+		<h3>首页顶部主图与外观偏好</h3>
+		<p class="desc">针对站点的主页展现风貌（如顶部站点头像/主图的开启或关闭、自定义挑选等）进行专属配置。</p>
+		
+		<form method="POST" action="?/updateAppearance" use:enhance={() => { return async ({ update }) => { update({ reset: false }); }; }} class="alias-form">
+			<div class="form-group">
+				<label class="toggle-label">
+					<input type="checkbox" name="site_avatar_enabled_cb" bind:checked={avatarEnabled} />
+					<input type="hidden" name="site_avatar_enabled" value={avatarEnabled ? 'true' : 'false'} />
+					<span class="toggle-text">在网站首页顶部标题栏显示主图 / 站点头像</span>
+				</label>
+			</div>
+
+			{#if avatarEnabled}
+				<div class="form-group">
+					<label for="picker">主页显示图片</label>
+					<div class="picker-container">
+						<ImagePicker bind:cover={avatarUrl} title="" inputName="site_avatar_url" aspectRatio="1/1" />
+					</div>
+				</div>
+			{:else}
+				<input type="hidden" name="site_avatar_url" value={avatarUrl} />
+			{/if}
+
+			<div class="form-actions">
+				<button type="submit" class="btn btn-primary">保存外观偏好</button>
+			</div>
+		</form>
+	</div>
+	{/if}
+
 	{#if activeTab === 'system'}
 	<div class="settings-card">
 		<h3>系统信息</h3>
@@ -278,4 +315,28 @@
 		border-color: var(--accent-color, #419b38);
 		color: white;
 	}
+
+	.toggle-label {
+		display: flex;
+		align-items: center;
+		gap: 10px;
+		cursor: pointer;
+		user-select: none;
+		font-size: 0.95rem;
+		font-weight: 600;
+		color: var(--text-color);
+	}
+
+	.toggle-label input[type="checkbox"] {
+		width: 18px;
+		height: 18px;
+		cursor: pointer;
+	}
+
+	.picker-container {
+		border: 1px solid rgba(0, 0, 0, 0.12);
+		padding: 20px;
+		background: rgba(0, 0, 0, 0.01);
+		margin-top: 5px;
+	}
 </style>