Add default value for preUp preDown postUp postDown

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

@@ -14,10 +14,10 @@ export const client = sqliteTable('clients_table', {
   name: text().notNull(),
   ipv4Address: text('ipv4_address').notNull().unique(),
   ipv6Address: text('ipv6_address').notNull().unique(),
-  preUp: text('pre_up'),
+  preUp: text('pre_up').default(''),
-  postUp: text('post_up'),
+  postUp: text('post_up').default(''),
-  preDown: text('pre_down'),
+  preDown: text('pre_down').default(''),
-  postDown: text('post_down'),
+  postDown: text('post_down').default(''),
   privateKey: text('private_key').notNull(),
   publicKey: text('public_key').notNull(),
   preSharedKey: text('pre_shared_key').notNull(),