Make Studio team command ACK responses honest

[louis4li]

Summary

• Change Studio team update/archive endpoints to return 202 Accepted command receipts instead of post-state snapshots.
• Stop re-reading eventually consistent team read models after dispatch and document the ACK semantics in ADR-0024.
• Update console web clients/tests to treat team command responses as accepted receipts and reject unexpected ACK stages.

Test plan

• npm --prefix /Users/liyingpei/Desktop/Code/aevatar/apps/aevatar-console-web run tsc
• npm --prefix /Users/liyingpei/Desktop/Code/aevatar/apps/aevatar-console-web run test -- src/shared/studio/api.test.ts src/pages/teams/detail.test.tsx --runInBand

Closes #547

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.48%. Comparing base (9888995) to head (4ffccb4).

@@           Coverage Diff           @@
##              dev     #765   +/-   ##
=======================================
  Coverage   82.47%   82.48%           
=======================================
  Files         941      941           
  Lines       60101    60114   +13     
  Branches     7872     7872           
=======================================
+ Hits        49571    49586   +15     
  Misses       7132     7132           
+ Partials     3398     3396    -2     

Flag	Coverage Δ
ci	82.48% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...dServices/ActorDispatchStudioTeamCommandService.cs	96.87% <100.00%> (+0.48%)	⬆️

... and 3 files with indirect coverage changes

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