fix(cloud): claw creation modal hangs during provisioning

[verse-mycelium]

Bug

When clicking "Create" in the create claw modal, the modal hangs for a long time waiting for the API to return. The modal eventually closes but drops back to the org page with stale cache — the new claw doesn't appear until several hard refreshes, at which point it shows in "provisioning" state.

Expected

Click "Create" → modal closes instantly → claw appears in the list with status "provisioning".

Root Cause (Initial Analysis)

createClawHandler in cloud/api/claws.handlers.ts does everything synchronously in one Effect pipeline:

1. DB insert (fast)
2. R2 bucket provisioning via clawDeployment.provision() (slow — Cloudflare API)
3. Secret encryption + DB update (fast)
4. Container warm-up via clawDeployment.warmUp() (slow — cold start)

Steps 2 and 4 are the bottleneck. The API doesn't return until the entire pipeline completes, keeping the modal spinner alive.

Proposed Approach

Split into fast path (return immediately) and background work:

• Fast path: DB insert → return claw with status "provisioning" → modal closes
• Background: R2 provisioning → encrypt secrets → DB update → warm-up (fire-and-forget or via queue)

Also: the frontend should invalidate the claws query cache after creation so the new claw appears immediately.

Files

• cloud/api/claws.handlers.ts — createClawHandler
• cloud/app/components/create-claw-modal.tsx — frontend modal
• cloud/claws/deployment/ — provisioning service

Reported by Dandelion.