feat: move sso and ldap logins into plugins (C2)

drizzle/postgres/0053_keen_thanos.sql

@@ -0,0 +1,4 @@
+-- sso_providers moves to the sso plugin's adopted table at activation, and
+-- its LDAP rows are copied into the ldap plugin by a boot migration after
+-- this runs. Dropping it here would lose the data first.
+SELECT 1;

drizzle/postgres/meta/_journal.json

@@ -372,6 +372,13 @@
       "when": 1790285909968,
       "tag": "0052_motionless_krista_starr",
       "breakpoints": true
+    },
+    {
+      "idx": 53,
+      "version": "7",
+      "when": 1790287990260,
+      "tag": "0053_keen_thanos",
+      "breakpoints": true
     }
   ]
 }