docs: add maintenance pool auto-supplement design

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

research-wiki/index.md

@@ -1,8 +1,8 @@
 # Research Wiki 索引
 
-> 自动生成，更新时间：2026-07-14 10:34 UTC
+> 自动生成，更新时间：2026-07-14 14:11 UTC
 
-## design (25)
+## design (27)
 - [2026-07-06-core-agent-adapters-llm-design](designs/2026-07-06-core-agent-adapters-llm-design.md) `design:2026-07-06-core-agent-adapters-llm-design`
 - [2026-07-07-app-harness-design](designs/2026-07-07-app-harness-design.md) `design:2026-07-07-app-harness-design`
 - [2026-07-07-core-evolution-design](designs/2026-07-07-core-evolution-design.md) `design:2026-07-07-core-evolution-design`
@@ -25,6 +25,8 @@
 - [建树模块竖切设计：数据结构 + 建树 + 修复 + 迁移](designs/2026-07-07-tree-module-design.md) `design:2026-07-07-tree-module-design`
 - [建树模块竖切设计：数据结构 + 建树 + 修复 + 迁移](designs/tree-module-vertical-slice.md) `design:tree-module-vertical-slice`
 - [搜索 Agent 装配层设计（app/search/）](designs/2026-07-07-search-module-design.md) `design:2026-07-07-search-module-design`
+- [训练池 Maintenance 正确题自动补入机制](designs/2026-07-14-maintenance-pool-design.md) `design:2026-07-14-maintenance-pool-design`
+- [训练池 Maintenance 正确题自动补入机制](designs/maintenance-pool.md) `design:maintenance-pool`
 - [论文主图：Self-Evolving Search Agent 推理训练闭环](designs/paper-main-figure.md) `design:paper-main-figure`
 - [赛题生成工具设计](designs/question-gen-synth.md) `design:question-gen-synth`
 - [赛题生成工具设计（Question Generation Synthesis）](designs/2026-07-09-question-gen-synth-design.md) `design:2026-07-09-question-gen-synth-design`