fix #12: simplify auth adapter, add verifications table

drizzle/0003_add_verifications_table.sql

@@ -0,0 +1,8 @@
+CREATE TABLE IF NOT EXISTS "verifications" (
+  "id" text PRIMARY KEY NOT NULL,
+  "identifier" text NOT NULL,
+  "value" text NOT NULL,
+  "expires_at" timestamp NOT NULL,
+  "created_at" timestamp with time zone DEFAULT now(),
+  "updated_at" timestamp with time zone DEFAULT now()
+);

drizzle/meta/_journal.json

@@ -22,6 +22,13 @@
       "when": 1777066400000,
       "tag": "0002_add_accounts_table",
       "breakpoints": true
+    },
+    {
+      "idx": 3,
+      "version": "7",
+      "when": 1777066500000,
+      "tag": "0003_add_verifications_table",
+      "breakpoints": true
     }
   ]
 }