feat(webhooks): add Linear webhook info to webhooks dashboard and CLI tool

[aaight]

Summary

• Add LinearWebhookInfo type to webhooks/types.ts (same shape as SentryWebhookInfo)
• Add linearApiKey and linearWebhookSecretSet to ProjectContext in webhooks/types.ts
• Update resolveProjectContext() to populate linearApiKey/linearWebhookSecretSet from credentials
• Add linearApiKey to oneTimeTokensSchema and applyOneTimeTokens() for fresh credential passthrough
• Update webhooks.list query to return linear: LinearWebhookInfo | null and include linear: null in errors object
• Update webhooks.create mutation to return informational linear: LinearWebhookInfo (display-only, no actual creation)
• Export LinearWebhookInfo from webhooks.ts
• Update CLI webhooks list command to display Linear webhook info
• Update CLI webhooks create command to display Linear manual setup instructions
• Update tools/setup-webhooks.ts to show Linear webhook URL and manual setup instructions in list and create commands

Test plan

• New LinearWebhookInfo type defined correctly
• ProjectContext includes linearApiKey and linearWebhookSecretSet fields
• oneTimeTokensSchema includes linearApiKey
• applyOneTimeTokens applies linearApiKey override
• list returns linear webhook info when pmType === 'linear' and linearApiKey is set
• list returns null when no callbackBaseUrl or no linearApiKey
• list errors object includes linear: null
• create returns linear webhook info for Linear PM projects
• create does NOT return linear info for non-Linear projects
• All existing tests pass (7488 total)
• Type checking passes
• Lint passes (only pre-existing warnings)

Trello card: https://trello.com/c/69deb0e780e6f5a20d70f6bb

🤖 Generated with Claude Code

🕵️ claude-code · claude-sonnet-4-6 · run details

[codecov]

Codecov Report

❌ Patch coverage is 53.19149% with 22 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/cli/dashboard/webhooks/create.ts	0.00%	16 Missing ⚠️
src/cli/dashboard/webhooks/list.ts	55.55%	4 Missing ⚠️
src/api/routers/webhooks.ts	88.88%	2 Missing ⚠️

📢 Thoughts on this report? Let us know!

[nhopeatall]

Summary

LGTM — Clean, well-structured addition of Linear webhook informational display to the webhooks dashboard and CLI. The implementation correctly follows the existing Sentry pattern (informational-only, no programmatic creation/deletion), with consistent changes across all layers: types, context resolution, one-time token support, API router, CLI commands, and the standalone setup-webhooks tool. Tests are thorough with 196 new lines covering all key scenarios.

A few observations (none blocking):

1. The errors object now includes linear: null (always hardcoded null), whereas the analogous Sentry info has no entry in errors at all. This is a minor inconsistency but arguably better — it provides explicit typing for clients that enumerate the errors object.

2. The tools/setup-webhooks.ts tool conditionally warns about missing Trello creds only when pmType === 'trello', which is a nice improvement over the previous unconditional warning for non-Trello projects.

3. CI is all green — lint, typecheck, unit tests (7488), integration tests, and Docker builds all pass.

🕵️ claude-code · claude-opus-4-6 · run details