Feat: Global config override (#1720)

* be able to change dns. implement global override

* link donate to readme

* implement global config for allowed ips

* change translations, fix generation

* improve docs

src/server/database/repositories/client/schema.ts

@@ -3,6 +3,8 @@ import { int, sqliteTable, text } from 'drizzle-orm/sqlite-core';
 
 import { oneTimeLink, user } from '../../schema';
 
+/** null means use value from userConfig */
+
 export const client = sqliteTable('clients_table', {
   id: int().primaryKey({ autoIncrement: true }),
   userId: int('user_id')
@@ -22,13 +24,13 @@ export const client = sqliteTable('clients_table', {
   publicKey: text('public_key').notNull(),
   preSharedKey: text('pre_shared_key').notNull(),
   expiresAt: text('expires_at'),
-  allowedIps: text('allowed_ips', { mode: 'json' }).$type<string[]>().notNull(),
+  allowedIps: text('allowed_ips', { mode: 'json' }).$type<string[]>(),
   serverAllowedIps: text('server_allowed_ips', { mode: 'json' })
     .$type<string[]>()
     .notNull(),
   persistentKeepalive: int('persistent_keepalive').notNull(),
   mtu: int().notNull(),
-  dns: text({ mode: 'json' }).$type<string[]>().notNull(),
+  dns: text({ mode: 'json' }).$type<string[]>(),
   enabled: int({ mode: 'boolean' }).notNull(),
   createdAt: text('created_at')
     .notNull()