feat: move vault ssh signing into a plugin (C5)

drizzle/postgres/0055_jazzy_quasimodo.sql

@@ -0,0 +1,5 @@
+-- vault_profiles and vault_tokens move to the vault plugin's adopted tables
+-- at activation, and ssh_data.vault_profile_id is copied into the vault
+-- plugin's host settings by a boot migration after this runs. Dropping any
+-- of them here would lose the data first.
+SELECT 1;

drizzle/postgres/meta/_journal.json

@@ -386,6 +386,13 @@
       "when": 1790295070561,
       "tag": "0054_cloudy_galactus",
       "breakpoints": true
+    },
+    {
+      "idx": 55,
+      "version": "7",
+      "when": 1790298804216,
+      "tag": "0055_jazzy_quasimodo",
+      "breakpoints": true
     }
   ]
 }