feat(dashboard): add graph stats and vector metrics endpoints

- [x] Add handleGraphStats endpoint for knowledge graph visualization
- [x] Add handleVectorMetrics endpoint for vector database dashboard
- [x] Improve update check error handling with JSON response
- [x] Register new API routes for graph and vector metrics
- [x] Migrate Font Awesome to npm package from CDN
- [x] Fix observations API response type handling
- [x] Update package version to v0.10.5-15-g385d05a

ui/index.html

@@ -4,7 +4,6 @@
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <title>Claude Mnemonic Dashboard</title>
-  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css">
 </head>
 <body class="bg-gradient-to-br from-slate-900 via-slate-800 to-slate-900 min-h-screen text-white">
   <div id="app"></div>

ui/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "claude-mnemonic-dashboard",
-  "version": "v0.10.5-1-g7ab4b07-dirty",
+  "version": "v0.10.5-15-g385d05a-dirty",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "claude-mnemonic-dashboard",
-      "version": "v0.10.5-1-g7ab4b07-dirty",
+      "version": "v0.10.5-15-g385d05a-dirty",
       "dependencies": {
         "vis-data": "^7.1.9",
         "vis-network": "^9.1.9",

ui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "claude-mnemonic-dashboard",
-  "version": "v0.10.5-1-g7ab4b07-dirty",
+  "version": "v0.10.5-15-g385d05a-dirty",
   "private": true,
   "type": "module",
   "scripts": {

ui/src/main.ts

@@ -1,5 +1,6 @@
 import { createApp } from 'vue'
 import App from './App.vue'
 import './assets/main.css'
+import '@fortawesome/fontawesome-free/css/all.min.css'
 
 createApp(App).mount('#app')

ui/src/utils/api.ts

@@ -89,10 +89,19 @@ async function fetchWithRetry<T>(url: string, options: FetchOptions = {}): Promi
   throw lastError!
 }
 
+interface ObservationsResponse {
+  observations: Observation[]
+  total: number
+  limit: number
+  offset: number
+  hasMore: boolean
+}
+
 export async function fetchObservations(limit: number = 100, project?: string, signal?: AbortSignal): Promise<Observation[]> {
   const params = new URLSearchParams({ limit: String(limit) })
   if (project) params.append('project', project)
-  return fetchWithRetry<Observation[]>(`${API_BASE}/observations?${params}`, { signal })
+  const response = await fetchWithRetry<ObservationsResponse>(`${API_BASE}/observations?${params}`, { signal })
+  return response.observations || []
 }
 
 export async function fetchPrompts(limit: number = 100, project?: string, signal?: AbortSignal): Promise<UserPrompt[]> {