refactor: remove config package from polaris and config_center

[zbchi]

Description

Remove dependency on config package from polaris limiter and config_center modules, use URL parameters/attributes and global package types instead.

Checklist

• I confirm the target branch is develop
• Code has passed local testing
• I have added tests that prove my fix is effective or that my feature works

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 47.91%. Comparing base (35ea886) to head (d29a6de).
⚠️ Report is 3 commits behind head on develop.

Files with missing lines	Patch %	Lines
config_center/zookeeper/impl.go	0.00%	3 Missing ⚠️
filter/polaris/limit/limiter.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3210      +/-   ##
===========================================
- Coverage    47.99%   47.91%   -0.09%     
===========================================
  Files          463      463              
  Lines        33727    33744      +17     
===========================================
- Hits         16187    16168      -19     
- Misses       16237    16271      +34     
- Partials      1303     1305       +2     

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[nanjiek]

common/constant/key里面有常量了，测试直接复用就好了。

[Copilot]

Pull request overview

This PR refactors Polaris limiter and config center Apollo tests to avoid depending on the config package, instead deriving configuration from URL params/attributes and global types.

Changes:

• Replace config lookups in the Polaris TPS limiter with URL attribute/parameter based detection.
• Update Apollo config center tests to unmarshal into global.ApplicationConfig and construct config-center URL params directly.
• Minor cleanup in Zookeeper config center initialization struct literal.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
filter/polaris/limit/limiter.go	Switches Polaris limiter “applicationMode” detection from global config to URL attributes/params.
config_center/zookeeper/impl.go	Minor struct literal cleanup in Zookeeper dynamic configuration constructor.
config_center/apollo/impl_test.go	Removes config.RootConfig usage in tests; uses global.ApplicationConfig and URL params.

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[nanjiek]

还有未替换成常量的固定值

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Alanxtl]

lgtm