Vendor-neutral age verification, with IMVU as the first provider

Age checks are recorded in one table (age_check) by provider, method and result, never with documents or
birth dates; one rule decides whether an IMVU account counts as adult (its person's check, or its own).
Providers implement a small interface (start, webhook or browser completion, re-check) and are chosen by
configuration, so phone wallets and Didit can be added, or swapped, as adapters. IMVU's answer per account
is re-checked when it expires (about daily). Existing links' results move into the new table.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/db/drizzle/meta/_journal.json

@@ -8,6 +8,13 @@
       "when": 1793273462704,
       "tag": "0000_init",
       "breakpoints": true
+    },
+    {
+      "idx": 1,
+      "version": "7",
+      "when": 1793277687785,
+      "tag": "0001_age_checks",
+      "breakpoints": true
     }
   ]
 }