fix: Register migration 0032 in drizzle journal

The migration file existed but wasn't in _journal.json, so drizzle-kit's
migrator never applied it. Adds the journal entry for 0032_add_comment_threading.

apps/server/drizzle/meta/_journal.json

@@ -225,6 +225,13 @@
       "when": 1772236800000,
       "tag": "0031_add_phase_merge_base",
       "breakpoints": true
+    },
+    {
+      "idx": 32,
+      "version": "6",
+      "when": 1772323200000,
+      "tag": "0032_add_comment_threading",
+      "breakpoints": true
     }
   ]
 }