fix: Clean up and add Neon DB

cloud/packages/core/src/context.ts

@@ -1,17 +1,21 @@
 import { AsyncLocalStorage } from "node:async_hooks";
 
-export function createContext<T>() {
-  const storage = new AsyncLocalStorage<T>();
-  return {
-    use() {
-      const result = storage.getStore();
-      if (!result) {
-        throw new Error("No context available");
-      }
-      return result;
-    },
-    provide<R>(value: T, fn: () => R) {
-      return storage.run<R>(value, fn);
-    },
-  };
-}
+export namespace Context {
+  export class NotFound extends Error {}
+
+  export function create<T>() {
+    const storage = new AsyncLocalStorage<T>();
+    return {
+      use() {
+        const result = storage.getStore();
+        if (!result) {
+          throw new NotFound();
+        }
+        return result;
+      },
+      provide<R>(value: T, fn: () => R) {
+        return storage.run<R>(value, fn);
+      },
+    };
+  }
+}