Add web api response changes as of 2025-08-15

[seratch]

This pull request updates web api responses based on the production e2e test results.

Category (place an x in each of the [ ])

• bolt (Bolt for Java)
• bolt-{sub modules} (Bolt for Java - optional modules)
• slack-api-client (Slack API Clients)
• slack-api-model (Slack API Data Models)
• slack-api-*-kotlin-extension (Kotlin Extensions for Slack API Clients)
• slack-app-backend (The primitive layer of Bolt for Java)

Requirements

Please read the Contributing guidelines and Code of Conduct before creating this issue or pull request. By submitting, you agree to those rules.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.14%. Comparing base (238d815) to head (1e755b2).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1495      +/-   ##
============================================
+ Coverage     73.10%   73.14%   +0.04%     
- Complexity     4383     4384       +1     
============================================
  Files           475      475              
  Lines         14244    14244              
  Branches       1447     1447              
============================================
+ Hits          10413    10419       +6     
+ Misses         2977     2970       -7     
- Partials        854      855       +1     

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[mwbrooks]

Thank you!