feat(logs): improve jack logs for managed projects

[hellno]

Problem

jack logs wraps wrangler tail - only works for BYOC. Managed projects use dispatch namespaces where Cloudflare Tail API doesn't work.

Current state:

• ✅ Workers Logs auto-enabled on all managed deployments
• ✅ Logs stored in jack's Cloudflare account
• ❌ Users cannot access jack's CF dashboard to view logs

What's needed

Build a way for users to access their logs. Options:

Option	Effort	UX
Web UI at cloud.getjack.org/logs	Medium	Best - visual, filterable
API endpoint GET /projects/:id/logs	Medium	Enables CLI integration
CLI proxy jack logs calls our API	Low (after API)	Familiar workflow

Recommended approach

1. Add GET /v1/projects/:projectId/logs endpoint that queries Cloudflare GraphQL
2. Update jack logs to call this endpoint for managed projects
3. Later: build web UI for richer experience

Current workaround

CLI shows message pointing to this issue. Logs are being collected but not yet accessible.

Tasks

• Add logs query endpoint to control plane
• Update jack logs to use endpoint for managed projects
• (Future) Web UI for logs