feature: Agent 导入支持指定标签 (closed #1787)

[ZhuoZhuoCrayon]

PR

CheckList（PR Assigners）

确认已完成以下操作：

• 已将分支与当前合入分支同步
• 已在关联 Issue 中补充「功能自测」部分内容
• 已更新关联 Issue 的状态 backlog -> todo -> for test -> tested（需通过测试同学测试） -> done
• 将 PR 添加上 pr/reviewable

CheckList（PR Reviewers）

确认已完成以下操作：

• 检查关联 Issue 「功能自测」部分内容
• 必要时打回 pr/reviewable，要求重新修改
• 及时 Approve

[codecov-commenter]

Codecov Report

Merging #1788 (2bec663) into v2.4.1-dev (f28e949) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           v2.4.1-dev    #1788   +/-   ##
===========================================
  Coverage       74.04%   74.04%           
===========================================
  Files             397      397           
  Lines           26801    26811   +10     
===========================================
+ Hits            19844    19853    +9     
- Misses           6957     6958    +1     

Files Changed	Coverage Δ
apps/backend/agent/artifact_builder/base.py	93.96% <100.00%> (+0.16%)	⬆️
apps/backend/management/commands/init_agents.py	93.33% <100.00%> (+0.65%)	⬆️

... and 1 file with indirect coverage changes