Prototype with single host server and no admin panel (#2)

Reviewed-on: wrenn/sandbox#2
Co-authored-by: pptx704 <rafeed@omukk.dev>
Co-committed-by: pptx704 <rafeed@omukk.dev>

db/queries/oauth.sql

@@ -0,0 +1,7 @@
+-- name: InsertOAuthProvider :exec
+INSERT INTO oauth_providers (provider, provider_id, user_id, email)
+VALUES ($1, $2, $3, $4);
+
+-- name: GetOAuthProvider :one
+SELECT * FROM oauth_providers
+WHERE provider = $1 AND provider_id = $2;