Danny White fd17b246e1 fix(studio): tighten webhook endpoint validation (#43892) ...

## What kind of change does this PR introduce?

Bug fix.

## What is the current behavior?

Webhook endpoint validation is inconsistent across Studio forms. The
webhook sheet accepts incomplete hostnames like `https://webhook`, event
type validation is not surfaced clearly, and HTTP endpoint validation
differs between webhooks, log drains, cron jobs, and database hooks.

## What is the new behavior?

- Tightens webhook endpoint URL validation and rejects incomplete
hostnames while still allowing localhost and IP-based endpoints.
- Surfaces the Event types validation through the standard form error
styling and highlights the existing accordion item border when invalid.
- **Extracts a shared HTTP endpoint URL validator and reuses it in
webhooks, log drains, cron jobs, and database hooks.**
- Adds focused regression tests for the webhook sheet and the
shared/consumer validation paths.

| After |
| --- |
| <img width="1728" height="997" alt="Webhooks Settings AWS Healthy
Toolshed Supabase-CB0D999C-D0BF-47AA-A10F-342A2E328DF9"
src="https://github.com/user-attachments/assets/bcbe4876-f9a7-497a-b288-460087a65546"
/> |

## To test

Form behaviour (in particular URL validation) on:

- Webhook endpoint
- Log drains
- Cron jobs
- Database hooks

2026-03-19 11:43:02 +11:00

..

http-url.test.ts

fix(studio): tighten webhook endpoint validation (#43892)

2026-03-19 11:43:02 +11:00

http-url.ts

fix(studio): tighten webhook endpoint validation (#43892)

2026-03-19 11:43:02 +11:00