[eas-cli] Add Convex project delete command

[FiberJW]

Why

Users need a way to remove the EAS-side Convex project link for an Expo app.

How

Adds eas integrations:convex:project:delete, with --yes, non-interactive handling, and prompts that include the Convex dashboard URL and state Convex-side resources are not destroyed.

Test Plan

Local E2E rerun after the formatting change. Linked project setup is currently blocked by the API project setup throttle, so this rerun covers the no-project delete path from a fresh Expo app.

Commands run (with REPO=/Users/fiberjw/Developer/expo/eas-cli):

cd packages/eas-cli && yarn build
cd /tmp/eas-convex-e2e-teamfmt
$REPO/packages/eas-cli/bin/run integrations:convex:project:delete --non-interactive --yes

Output/verification:

No Convex project is linked to Expo app eas-convex-e2e-teamfmt on EAS.

[FiberJW]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• [eas-cli] Add Convex E2E runner #3654
• [eas-cli] Add Convex dashboard command #3653
• [eas-cli] Add Convex project delete command #3652 👈 (View in Graphite)
• [eas-cli] Add Convex project command #3651
• [eas-cli] Add Convex team delete command #3650
• [eas-cli] Add Convex team invite command #3649
• [eas-cli] Add Convex team command #3648
• [eas-cli] Add Convex connect command #3575
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[codecov]

Codecov Report

❌ Patch coverage is 94.73684% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 56.21%. Comparing base (3dac54e) to head (f9333fb).

Files with missing lines	Patch %	Lines
...src/commands/integrations/convex/project/delete.ts	94.74%	2 Missing ⚠️

Additional details and impacted files

@@                    Coverage Diff                     @@
##           fiberjw/convex-project    #3652      +/-   ##
==========================================================
+ Coverage                   56.17%   56.21%   +0.04%     
==========================================================
  Files                         877      878       +1     
  Lines                       37925    37963      +38     
  Branches                     7892     7896       +4     
==========================================================
+ Hits                        21302    21338      +36     
- Misses                      16525    16527       +2     
  Partials                       98       98              

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