feat: add manufacturers table to schema

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

drizzle-pg/meta/_journal.json

@@ -50,6 +50,13 @@
       "when": 1776096142720,
       "tag": "0006_remarkable_susan_delgado",
       "breakpoints": true
+    },
+    {
+      "idx": 7,
+      "version": "7",
+      "when": 1776516850497,
+      "tag": "0007_steady_sasquatch",
+      "breakpoints": true
     }
   ]
 }