Missing frontend dependencies.

Author: t-neumann

frontend/.env.local

@@ -0,0 +1,2 @@
+# DELETE FILE IF LOCALHOST IS RUNNING PERPENDICULARITY
+VITE_API_URL=http://<EC2 ADDRESS OF PERPENDICULARITY>:8000

frontend/src/api.ts

@@ -2,6 +2,9 @@
  * API client for Perpendicularity backend
  */
 
+// frontend/src/vite-env.d.ts
+/// <reference types="vite/client" />
+
 import type { Config, ChatRequest, SSEEvent } from './types'
 
 const API_BASE = import.meta.env.VITE_API_URL || 

frontend/src/lib/utils.ts

@@ -0,0 +1,33 @@
+import { type ClassValue, clsx } from 'clsx'
+import { twMerge } from 'tailwind-merge'
+
+/**
+ * Merge Tailwind CSS classes with clsx
+ */
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}
+
+/**
+ * Format date to readable string
+ */
+export function formatDate(date: Date): string {
+  return new Intl.DateTimeFormat('en-US', {
+    hour: 'numeric',
+    minute: 'numeric',
+    hour12: true,
+  }).format(date)
+}
+
+/**
+ * Copy text to clipboard
+ */
+export async function copyToClipboard(text: string): Promise<boolean> {
+  try {
+    await navigator.clipboard.writeText(text)
+    return true
+  } catch (err) {
+    console.error('Failed to copy:', err)
+    return false
+  }
+}

frontend/tsconfig.json

@@ -5,6 +5,7 @@
     "lib": ["ES2020", "DOM", "DOM.Iterable"],
     "module": "ESNext",
     "skipLibCheck": true,
+    "types": ["vite/client"],
 
     /* Bundler mode */
     "moduleResolution": "bundler",
@@ -26,6 +27,6 @@
       "@/*": ["./src/*"]
     }
   },
-  "include": ["src"],
+  "include": ["src", "src/vite-env.d.ts"],
   "references": [{ "path": "./tsconfig.node.json" }]
 }