fix: fix api path tree building

[fuyuwei01]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 81.81818% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 19.85%. Comparing base (9b8cfec) to head (d628c92).

Files with missing lines	Patch %	Lines
...n/java/com/tencent/polaris/api/utils/TrieUtil.java	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #660      +/-   ##
============================================
+ Coverage     19.79%   19.85%   +0.05%     
- Complexity      946      950       +4     
============================================
  Files           375      375              
  Lines         15598    15607       +9     
  Branches       1998     2001       +3     
============================================
+ Hits           3088     3099      +11     
  Misses        12125    12125              
+ Partials        385      383       -2     

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[SkyeBeFreeman]

如果path是/，那么apiPaths是什么样的？

[fuyuwei01]

apiPaths.length为0，仅返回根节点

[fuyuwei01]

这里会有个情况是，/path会和path生成同样的树结构。

[SkyeBeFreeman]

需要补充多点单测用例，来保证正确。

[SkyeBeFreeman]

需要补充多点单测用例，来保证正确。