webui: Architecture and UI improvements (#19596)

tools/server/webui/src/lib/utils/api-fetch.ts

@@ -1,5 +1,6 @@
 import { base } from '$app/paths';
 import { getJsonHeaders, getAuthHeaders } from './api-headers';
+import { UrlPrefix } from '$lib/enums';
 
 /**
  * API Fetch Utilities
@@ -48,7 +49,8 @@ export async function apiFetch<T>(path: string, options: ApiFetchOptions = {}):
 	const baseHeaders = authOnly ? getAuthHeaders() : getJsonHeaders();
 	const headers = { ...baseHeaders, ...customHeaders };
 
-	const url = path.startsWith('http://') || path.startsWith('https://') ? path : `${base}${path}`;
+	const url =
+		path.startsWith(UrlPrefix.HTTP) || path.startsWith(UrlPrefix.HTTPS) ? path : `${base}${path}`;
 
 	const response = await fetch(url, {
 		...fetchOptions,

tools/server/webui/src/lib/utils/branching.ts

@@ -15,7 +15,7 @@
  *        └── message 5 (assistant)
  */
 
-import { MessageRole } from '$lib/enums/chat';
+import { MessageRole } from '$lib/enums';
 
 /**
  * Filters messages to get the conversation path from root to a specific leaf node.

tools/server/webui/src/lib/utils/cache-ttl.ts

@@ -1,5 +1,4 @@
-const DEFAULT_CACHE_TTL_MS = 5 * 60 * 1000;
-const DEFAULT_CACHE_MAX_ENTRIES = 100;
+import { DEFAULT_CACHE_TTL_MS, DEFAULT_CACHE_MAX_ENTRIES } from '$lib/constants/cache';
 
 /**
  * TTL Cache - Time-To-Live cache implementation for memory optimization

tools/server/webui/src/lib/utils/modality-file-validation.ts

@@ -5,7 +5,7 @@
 
 import { getFileTypeCategory } from '$lib/utils';
 import { FileTypeCategory } from '$lib/enums';
-import type { ModalityCapabilities } from '$lib/types/models';
+import type { ModalityCapabilities } from '$lib/types';
 
 /**
  * Check if a file type is supported by the given modalities

tools/server/webui/src/lib/utils/text-files.ts

@@ -4,7 +4,7 @@
  */
 
 import { DEFAULT_BINARY_DETECTION_OPTIONS } from '$lib/constants/binary-detection';
-import type { BinaryDetectionOptions } from '$lib/constants/binary-detection';
+import type { BinaryDetectionOptions } from '$lib/types';
 import { FileExtensionText } from '$lib/enums';
 
 /**