feat: APIs for Integration Hooks (#2250)

- Introduces JSON Schema validations via JSONSchemer
- Add CRUD APIs for integration hooks

app/controllers/api/v1/accounts/integrations/hooks_controller.rb

@@ -0,0 +1,31 @@
+class Api::V1::Accounts::Integrations::HooksController < Api::V1::Accounts::BaseController
+  before_action :fetch_hook, only: [:update, :destroy]
+  before_action :check_authorization
+
+  def create
+    @hook = Current.account.hooks.create!(permitted_params)
+  end
+
+  def update
+    @hook.update!(permitted_params.slice(:status, :settings))
+  end
+
+  def destroy
+    @hook.destroy
+    head :ok
+  end
+
+  private
+
+  def fetch_hook
+    @hook = Current.account.hooks.find(params[:id])
+  end
+
+  def check_authorization
+    authorize(:hook)
+  end
+
+  def permitted_params
+    params.require(:hook).permit(:app_id, :inbox_id, :status, settings: {})
+  end
+end