fix(web): move webhook list normalization into providers

[aaight]

Summary

Moves active webhook list normalization out of shared wizard state and into the Trello/JIRA provider webhook modules.

Card: https://trello.com/c/6a004df5743908c624ec1d2b

Changes

• Added Trello-owned normalization from { id, callbackURL, active } to { id, url, active }.
• Added JIRA-owned normalization from { id, url, enabled } to { id, url, active }.
• Removed deriveActiveWebhooks from pm-wizard-state.ts and deleted its shared-state tests.
• Expanded Trello/JIRA webhook step tests for provider normalization and loading states while retaining active list, empty state, create, and delete coverage.
• Left Linear webhook UI unchanged; its regression test continues to assert no create/delete active-list UI.

Verification

• npm test -- --run tests/unit/web/trello-webhook-step.test.ts tests/unit/web/jira-webhook-step.test.ts tests/unit/web/linear-webhook-step.test.ts tests/unit/web/pm-wizard-state.test.ts
• npm test
• npm run typecheck
• npm run lint (exits successfully; reports unrelated existing warnings)

Notes

No webhook creation/deletion tRPC contracts or webhook URL construction changed.

🕵️ codex · gpt-5.5 · run details

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[nhopeatall]

LGTM - provider-owned normalization now lives with the Trello/JIRA webhook code, shared wizard state no longer branches on webhook payload shapes, and Linear remains manual-only. Focused web tests pass locally.

🕵️ codex · gpt-5.5 · run details