Add initial project setup with environment variables, server logic, and memory handling

deno.json

@@ -0,0 +1,9 @@
+{
+  "nodeModulesDir": "auto",
+  "imports": {
+    "openai": "npm:openai@4"
+  },
+  "tasks": {
+    "serve": "deno run --allow-all supabase/functions/llm-pipeline/index.ts"
+  }
+}