[codex] 修复 PR preflight warning 与测试覆盖

[utopiafar]

Summary

• 修复 PR preflight analyzer 对比脚本，兼容 flutter analyze stdout 与 --write 产物格式，并把脚本单测接入 workflow
• 清理当前低成本 analyzer warning/error：移除未使用代码、修正 health strategy 可空赋值、补齐 live tag 声明与 live eval 环境跳过
• 补充/修正相关链路测试：preflight parser 单测、AgentCacheHelper 单测、agent functional fixture 本地化，压缩 fallback 覆盖保持有效

Tests

• python3 scripts/compare_flutter_analyze_test.py
• flutter test --no-pub test/agent/agent_cache_helper_test.dart test/agent_refactor_functional_test.dart test/live_agent_eval_test.dart test/data/services/quick_action_service_test.dart
• flutter analyze --no-pub --no-fatal-infos --no-fatal-warnings --no-congratulate --write /tmp/memex-analyze-rebased.txt
  • warning/error: 0，剩余为既有 info
• flutter test --no-pub
  • 278 passed, 2 skipped

Notes

• 已 rebase 到 upstream/main @ 421c713，rebase 无冲突

[github-actions]

PR Preflight Summary / PR 预检汇总

中文

• 统一结论：低风险：两个预检均已完成，质量预检通过，可走普通手动合并流程。
• Policy preflight：低风险
• Flutter quality：通过
• PR head：ada2692217e8c09d30719e84a34485a3aa894e67
• Policy run：25997183927
• Flutter run：25997183934

English

• Combined result: Low risk: both preflights completed and quality passed; use the normal manual merge flow.
• Policy preflight: LOW RISK
• Flutter quality: PASS
• PR head: ada2692217e8c09d30719e84a34485a3aa894e67
• Policy run: 25997183927
• Flutter run: 25997183934

PR Policy Preflight / PR 规则预检

PR Policy Preflight / PR 规则预检

中文

• 判定：低风险
• 变更文件数：0
• 变更行数：0
• Diff 是否截断：false

未发现确定性规则问题。

English

• Decision: LOW RISK
• Changed files: 0
• Changed lines: 0
• Diff truncated: false

No deterministic policy findings.

PR Flutter Quality / Flutter 质量预检

PR Flutter Quality / Flutter 质量预检

中文

• 总体：通过
• Analyzer baseline：通过
• Test baseline：通过

English

• Overall: PASS
• Analyzer baseline: PASS
• Test baseline: PASS

Flutter Analyzer Baseline

• Base issues: 356
• PR issues: 332
• New issues: 0

No new analyzer issues introduced by this PR.

Flutter Test Baseline

• Base failures: 3
• PR failures: 0
• New failures: 0

No new Flutter test failures introduced by this PR.