✨ 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/functions/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "@nestri/functions",
+  "module": "index.ts",
+  "type": "module",
+  "devDependencies": {
+    "@cloudflare/workers-types": "^4.20241224.0",
+    "@nestri/core": "*",
+    "@types/bun": "latest",
+    "partykit": "^0.0.111",
+    "valibot": "^1.0.0-beta.9"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  },
+  "dependencies": {
+    "hono": "^4.6.15",
+    "hono-openapi": "^0.3.1",
+    "partysocket": "1.0.3"
+  }
+}