Add bridge migrations

apps/bridge-frontend/database/migrations/0006-add-webhooks.ts

@@ -0,0 +1,40 @@
+import { Kysely, sql } from "kysely";
+
+export async function up(db: Kysely<any>): Promise<void> {
+  await db.schema
+    .createTable("Webhook")
+    .addColumn("id", "uuid", (col) =>
+      col.primaryKey().defaultTo(sql`gen_random_uuid()`),
+    )
+    .addColumn("backend_type", "text", (col) => col.notNull())
+    .addColumn("backend_id", "uuid", (col) => col.notNull())
+    .addColumn("name", "text", (col) => col.notNull())
+    .addColumn("endpoint_url", "text", (col) =>
+      col.notNull().check(sql`endpoint_url ~ '^https?://[^/]+'`),
+    )
+    .addColumn("http_method", "text", (col) =>
+      col
+        .notNull()
+        .defaultTo("post")
+        .check(sql`http_method in ('post', 'put')`),
+    )
+    .addColumn("headers", "jsonb")
+    .addColumn("created_at", "timestamptz", (col) =>
+      col.notNull().defaultTo(sql`now()`),
+    )
+    .addColumn("updated_at", "timestamptz", (col) =>
+      col.notNull().defaultTo(sql`now()`),
+    )
+    .execute();
+
+  await db.schema
+    .createIndex("WebhookBackendTypeBackendId")
+    .on("Webhook")
+    .column("backend_type")
+    .column("backend_id")
+    .execute();
+}
+
+export async function down(db: Kysely<any>): Promise<void> {
+  await db.schema.dropTable("Webhook").ifExists().execute();
+}