feat: Enhance script object 'api' with parameter accessor methods

[tangcent]

Add new functions to the script 'api' object to access query parameters, form parameters, and path parameters with wrapper objects that provide full manipulation capabilities. This makes it easier for rule scripts to retrieve and manage request parameters in a more object-oriented way.

• Add methods to retrieve parameters: params(), param(name), params(name)
• Add methods to retrieve form parameters: formParams(), formParam(name), formParams(name)
• Add methods to retrieve path parameters: pathParams(), pathParam(name), pathParams(name)

[github-actions]

📦 Plugin has been packaged for this PR. You can download easy-yapi-2.8.0.212.0.zip from the GitHub Actions workflow run by clicking on the "Artifacts" dropdown.

[codecov]

Codecov Report

Attention: Patch coverage is 76.92308% with 33 lines in your changes missing coverage. Please review.

Project coverage is 54.576%. Comparing base (ec92623) to head (c88e59c).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...ent/idea/plugin/api/export/rule/RequestRuleWrap.kt	76.923%	1 Missing and 32 partials ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##              master     #1241       +/-   ##
===============================================
+ Coverage     54.442%   54.576%   +0.134%     
- Complexity      2761      2773       +12     
===============================================
  Files            289       289               
  Lines          16478     16586      +108     
  Branches        3692      3710       +18     
===============================================
+ Hits            8971      9052       +81     
  Misses          5826      5826               
- Partials        1681      1708       +27     

Flag	Coverage Δ
unittests	54.576% <76.923%> (+0.134%)	⬆️

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

Files with missing lines	Coverage Δ
...ent/idea/plugin/api/export/rule/RequestRuleWrap.kt	78.706% <76.923%> (-1.522%)	⬇️

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