Feature: Add Ollama embedding service and model selection functionality

.env.example

@@ -47,9 +47,6 @@ VITE_ALLOWED_HOSTS=
 # proxy where you want to expose the frontend on a single external domain.
 PROD=false
 
-# Embedding Configuration
-# Dimensions for embedding vectors (1536 for OpenAI text-embedding-3-small)
-EMBEDDING_DIMENSIONS=1536
 
 # NOTE: All other configuration has been moved to database management!
 # Run the credentials_setup.sql file in your Supabase SQL editor to set up the credentials table.

archon-ui-main/src/components/layouts/MainLayout.tsx

@@ -45,7 +45,8 @@ export const MainLayout: React.FC<MainLayoutProps> = ({
         const timeoutId = setTimeout(() => controller.abort(), 5000);
 
         // Check if backend is responding with a simple health check
-        const response = await fetch(`${credentialsService['baseUrl']}/api/health`, {
+        // Use relative URL to go through Vite proxy in all environments
+        const response = await fetch('/health', {
           method: 'GET',
           signal: controller.signal
         });