✨ feat: Add auth flow (#146)

This adds a simple way to incorporate a centralized authentication flow.

The idea is to have the user, API and SSH (for machine authentication)
all in one place using `openauthjs` + `SST`

We also have a database now :)

> We are using InstantDB as it allows us to authenticate a use with just
the email. Plus it is super simple simple to use _of course after the
initial fumbles trying to design the db and relationships_

packages/core/src/examples.ts

@@ -0,0 +1,45 @@
+export module Examples {
+
+    export const User = {
+        id: "0bfcc712-df13-4454-81a8-fbee66eddca4",
+        email: "john@example.com",
+    };
+
+    export const Machine = {
+        id: "0bfcb712-df13-4454-81a8-fbee66eddca4",
+        hostname: "desktopeuo8vsf",
+        fingerprint: "fc27f428f9ca47d4b41b70889ae0c62090",
+        location: "KE, AF"
+    }
+
+    // export const Team = {
+    //     id: createID(),
+    //     name: "Jane's Family",
+    //     type: "Family"
+    // }
+
+    // export const ProductVariant = {
+    //     id: createID(),
+    //     name: "FamilySM",
+    //     price: 10,
+    // };
+
+    // export const Product = {
+    //     id: createID(),
+    //     name: "Family",
+    //     description: "The ideal subscription tier for dedicated gamers who crave more flexibility and social gaming experiences.",
+    //     variants: [ProductVariant],
+    //     subscription: "allowed" as const,
+    // };
+
+    // export const Subscription = {
+    //     id: createID(),
+    //     productVariant: ProductVariant,
+    //     quantity: 1,
+    //     polarOrderID: createID(),
+    //     frequency: "monthly" as const,
+    //     next: new Date("2024-02-01 19:36:19.000").getTime(),
+    //     owner: User
+    // };
+
+}