fix(QueryStringManager): fix Could not subscribe to application.currentAppId$

[joshuali925]

Description

Partially revert #9466. Current implementation doesn't work because QueryStringManager is constructed during setup, and setApplication happens during start. In playground or any instance we see Could not subscribe to application.currentAppId$ in console warning.

Issues Resolved

Screenshot

Testing the changes

Changelog

• fix: fix Could not subscribe to application.currentAppId$

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[github-actions]

❌ Changelog Entry Missing Hyphen

Changelog entries must begin with a hyphen (-).

[github-actions]

❌ Invalid Prefix

Invalid description prefix. Found "fix(QueryStringManager)". Expected "breaking", "deprecate", "feat", "fix", "infra", "doc", "chore", "refactor", "security", "skip", or "test".

[codecov]

Codecov Report

❌ Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 60.78%. Comparing base (7f80625) to head (ca2656f).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
.../public/query/query_string/query_string_manager.ts	83.33%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10943   +/-   ##
=======================================
  Coverage   60.78%   60.78%           
=======================================
  Files        4531     4531           
  Lines      122235   122232    -3     
  Branches    20491    20491           
=======================================
- Hits        74301    74300    -1     
+ Misses      42695    42693    -2     
  Partials     5239     5239           

Flag	Coverage Δ
Linux_1	26.56% <0.00%> (+<0.01%)	⬆️
Linux_2	38.92% <ø> (ø)
Linux_3	39.49% <83.33%> (+<0.01%)	⬆️
Linux_4	33.74% <0.00%> (+<0.01%)	⬆️
Windows_1	26.57% <0.00%> (+<0.01%)	⬆️
Windows_2	38.90% <ø> (ø)
Windows_3	39.49% <83.33%> (+<0.01%)	⬆️
Windows_4	33.74% <0.00%> (+<0.01%)	⬆️

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[joshuali925]

this revert is not a good fix, because getCurrentAppId called during setup still cannot get appId. It only fixes when calls are after setup. Closing for now