misc: 增加最大聊天历史条数编辑功能。

[MagicalAstrogy]

如题

[github-actions]

🔍 PR Test Report

🧪 Test Results

✅ All tests passed!

Type	Passed	Failed	Total
Test Suites	17	0	17
Tests	386	0	386

📊 Coverage Report

Metric	Coverage	Details
Lines	61.48%	1135/1846
Statements	61.14%	1160/1897
Functions	59.6%	121/203
Branches	60.64%	584/963

Coverage Thresholds

• ✅ Lines: 61.48% (Passed, threshold: 50%)
• ✅ Statements: 61.14% (Passed, threshold: 50%)
• ✅ Functions: 59.6% (Passed, threshold: 50%)
• ✅ Branches: 60.64% (Passed, threshold: 50%)

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Generated at 2026-06-19T11:01:43.991Z

[chatgpt-codex-connector]

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Reviewed commit: 3ce592b240

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[MagicalAstrogy]

LGFM