Non-admin agents could delete an account's Linear, Notion, or Shopify
integration through the dedicated integration endpoints, which — unlike
the generic hooks endpoint — never checked the caller's role. This
restores the intended admin-only boundary for removing an integration.
## Closes
- https://linear.app/chatwoot/issue/CW-7383
- https://linear.app/chatwoot/issue/CW-7384
- https://linear.app/chatwoot/issue/CW-7189
## How to reproduce
As a non-admin **agent**, `DELETE
/api/v1/accounts/:id/integrations/{linear,notion,shopify}` returned
`200` and removed the account-wide integration. After this change it
returns `401` and the integration is preserved; administrators can still
remove it.
## What changed
- Route integration-hook deletion through `HookPolicy` (admin-only) via
a shared `Integrations::BaseController`, matching the generic hooks
controller.
Co-authored-by: Vishnu Narayanan <iamwishnu@gmail.com>
