feat(chat): add SvelteKit web app with full feature parity to mobile

Web app features:
- Auth: Login, Register, Forgot Password with shared-auth-ui
- Chat: New chat, conversation view, message list, model selector
- Templates: List, create, edit, delete templates
- Spaces: Team workspaces with member management
- Documents: Document mode with version history
- Archive & Profile pages

Technical:
- SvelteKit 2 with Svelte 5 runes
- Tailwind CSS 4 with shared themes
- Supabase Auth with SSR
- ChatLogo added to shared-branding
- dev:*:app commands for web+backend

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

packages/shared-branding/src/config.ts

@@ -63,6 +63,18 @@ export const APP_BRANDING: Record<AppId, AppBranding> = {
 		logoStroke: true,
 		logoStrokeWidth: 2,
 	},
+	chat: {
+		id: 'chat',
+		name: 'ManaChat',
+		tagline: 'AI Chat Assistant',
+		primaryColor: '#0ea5e9',
+		secondaryColor: '#38bdf8',
+		// Chat bubble icon
+		logoPath: 'M8.625 12a.375.375 0 11-.75 0 .375.375 0 01.75 0zm0 0H8.25m4.125 0a.375.375 0 11-.75 0 .375.375 0 01.75 0zm0 0H12m4.125 0a.375.375 0 11-.75 0 .375.375 0 01.75 0zm0 0h-.375M21 12c0 4.556-4.03 8.25-9 8.25a9.764 9.764 0 01-2.555-.337A5.972 5.972 0 015.41 20.97a5.969 5.969 0 01-.474-.065 4.48 4.48 0 00.978-2.025c.09-.457-.133-.901-.467-1.226C3.93 16.178 3 14.189 3 12c0-4.556 4.03-8.25 9-8.25s9 3.694 9 8.25z',
+		logoViewBox: '0 0 24 24',
+		logoStroke: true,
+		logoStrokeWidth: 1.5,
+	},
 };
 
 /**

packages/shared-branding/src/index.ts

@@ -19,7 +19,8 @@ export {
 	ManaCoreLogo,
 	ManaDeckLogo,
 	StorytellerLogo,
-	UloadLogo
+	UloadLogo,
+	ChatLogo
 } from './logos';
 
 // Configuration

packages/shared-branding/src/logos/ChatLogo.svelte

@@ -0,0 +1,13 @@
+<script lang="ts">
+	import AppLogo from '../AppLogo.svelte';
+
+	interface Props {
+		size?: number;
+		color?: string;
+		class?: string;
+	}
+
+	let { size = 55, color, class: className = '' }: Props = $props();
+</script>
+
+<AppLogo app="chat" {size} {color} class={className} />

packages/shared-branding/src/logos/index.ts

@@ -7,3 +7,4 @@ export { default as ManaCoreLogo } from './ManaCoreLogo.svelte';
 export { default as ManaDeckLogo } from './ManaDeckLogo.svelte';
 export { default as StorytellerLogo } from './StorytellerLogo.svelte';
 export { default as UloadLogo } from './UloadLogo.svelte';
+export { default as ChatLogo } from './ChatLogo.svelte';

packages/shared-branding/src/types.ts

@@ -1,7 +1,7 @@
 /**
  * App identifiers for branding
  */
-export type AppId = 'memoro' | 'manacore' | 'manadeck' | 'maerchenzauber' | 'uload';
+export type AppId = 'memoro' | 'manacore' | 'manadeck' | 'maerchenzauber' | 'uload' | 'chat';
 
 /**
  * App branding configuration