feat(platform): Support manually setting up webhooks

[ntindle]

• Resolves Add support for manually set-up webhook (blocks) #8748

The webhooks system as is works really well for full blown enterprise webhooks managed via a UI. It does not work for more "chill guy" webhook tools that just send notifications sometimes.

Changes 🏗️

• feat(blocks): Add Compass transcription trigger block

• feat(backend): Amend webhooks system to support manual-set-up webhooks

  • Make event filter input optional on webhook-triggered nodes
  • Make credentials optional on webhook-triggered nodes
  • Add code path to re-use existing manual webhook on graph update
  • Add ManualWebhookManagerBase

• feat(frontend): Add UI to pass webhook URL to user on manual-set-up webhook blocks
  

• fix(backend): Strip webhook info from node objects for graph export

• refactor(backend): Rename backend.integrations.webhooks.base to ._base

[ntindle]

Works but overflows box for me

[ntindle]

The active status icons don't appear here which is weird

[ntindle]

This is in the export

"webhook": {
    "id": "a6ba1a21-e2d2-40e3-8895-8e407fbe5b9d",
    "user_id": "eb3beaac-09ee-4f97-beee-1ac37f7dd93a",
    "provider": "compass",
    "credentials_id": "",
    "webhook_type": "transcription",
    "resource": "",
    "events": [],
    "config": {},
    "secret": "4d36c1efda70ac47d73de1e6462ab33d0778504a4d3e0cad8d63258c15919232",
    "provider_webhook_id": "",
    "attached_nodes": null,
    "url": "https://prompt-neat-flea.ngrok-free.app/api/integrations/compass/webhooks/a6ba1a21-e2d2-40e3-8895-8e407fbe5b9d/ingress"
}

[github-actions]

This pull request has conflicts with the base branch, please resolve those so we can evaluate the pull request.

[Pwuts]

The active status icons don't appear here which is weird

Fixed: 6ffef4e (#8750)

[Pwuts]

Works but overflows box for me

Not for me 🤔

[github-actions]

Conflicts have been resolved! 🎉 A maintainer will review the pull request shortly.