fix(dashboard): correct webhook example payload to match v2 schema

[beran-t]

Summary

• Updated the webhook example payload shown in the webhook add/edit dialog to match the actual payload emitted by the backend.
• Bumped the version to v2, switched all field names to snake_case, removed the non-existent eventData field, and added the new event_category and event_label fields.

Test plan

• Open the dashboard webhook settings, start adding a webhook, and verify the example payload matches a real delivery.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
web	Ready	Preview, Comment	May 14, 2026 0:13am
web-juliett	Ready	Preview, Comment	May 14, 2026 0:13am

[claude]

LGTM, trivial fix to a static example payload string.

Extended reasoning...

Overview

This PR updates a single static string constant (WEBHOOK_EXAMPLE_PAYLOAD) in src/features/dashboard/settings/webhooks/constants.ts to match the actual v2 webhook payload schema emitted by the backend. It bumps the version field from v1 to v2, switches all field names to snake_case, removes the unused eventData field, and adds event_category and event_label. Also drops a trailing whitespace from a comment.

Security risks

None. This is purely a display-only example string shown in the webhook add/edit dialog. There is no execution path, no user input, no auth or crypto involved.

Level of scrutiny

Minimal. This is a documentation-style change to a hardcoded example. Worst case is that the example is slightly inaccurate, which is exactly what this PR is fixing.

Other factors

The diff is contained to one file, ~12 line change, and the intent is clearly stated in the PR description. No bugs were found by the bug hunter.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve event_data in the v2 example

For v2 deliveries that include sandbox metadata or execution details, the webhook schema exposes that data under snake_case event_data; this update removes the old eventData field but never adds its v2 replacement. Users copying this example for payload validation or handler typings will reject or ignore real deliveries that contain event data, especially paused/killed events and sandboxes with metadata.

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