feat: add autoAcceptPeering instance setting with drizzle migration

Adds `auto_accept_peering` integer column (default 1/true) to the
`instance_settings` singleton table, controlling whether this instance
auto-accepts incoming peering requests. Includes generated migration
`0001_clear_earthquake.sql` applied automatically on server boot.

packages/server/drizzle/0001_clear_earthquake.sql

@@ -0,0 +1 @@
+ALTER TABLE `instance_settings` ADD `auto_accept_peering` integer DEFAULT 1 NOT NULL;

packages/server/drizzle/meta/_journal.json

@@ -8,6 +8,13 @@
       "when": 1775687181033,
       "tag": "0000_initial",
       "breakpoints": true
+    },
+    {
+      "idx": 1,
+      "version": "6",
+      "when": 1775734599940,
+      "tag": "0001_clear_earthquake",
+      "breakpoints": true
     }
   ]
 }

packages/server/src/db/schema.ts

@@ -315,6 +315,7 @@ export const instanceSettings = sqliteTable('instance_settings', {
   federationRelayEnabled: integer('federation_relay_enabled').notNull().default(1),
   federationRelayTtlDays: integer('federation_relay_ttl_days').notNull().default(30),
   defaultAutoRotateIntervalDays: integer('default_auto_rotate_interval_days').notNull().default(90),
+  autoAcceptPeering: integer('auto_accept_peering').notNull().default(1),
   updatedAt: integer('updated_at').notNull(),
 });