feat: 规则审计-策略新增/编辑-后端接口 --story=121513458

[0RAJA]

【修复】

1. event_evidence_field_configs可以为空
2. 修复更新存储节点未存储节点信息问题
3. 修复更新时无法删除历史数据源节点问题

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 25.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 62.94%. Comparing base (02c97f5) to head (1dd50e4).
Report is 3 commits behind head on feat_rule_audit.

Files with missing lines	Patch %	Lines
...ackend/services/web/analyze/controls/rule_audit.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           feat_rule_audit     #524   +/-   ##
================================================
  Coverage            62.94%   62.94%           
================================================
  Files                  534      534           
  Lines                18013    18013           
================================================
  Hits                 11338    11338           
  Misses                6675     6675           

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