docs(plans): add Spec-2 batch tree build implementation plan

research-wiki/index.md

@@ -1,6 +1,6 @@
 # Research Wiki 索引
 
-> 自动生成，更新时间：2026-07-11 13:33 UTC
+> 自动生成，更新时间：2026-07-11 15:07 UTC
 
 ## design (21)
 - [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`
@@ -30,7 +30,7 @@
 - [2026-07-11-question-gen-calibration-analysis](findings/2026-07-11-question-gen-calibration-analysis.md) `finding:2026-07-11-question-gen-calibration-analysis`
 - [Harness 评估: Spec-1 修复验证 (infer_spec1check)](findings/eval-spec1check.md) `finding:eval-spec1check`
 
-## plan (19)
+## plan (21)
 - [2026-07-06-core-agent-adapters-llm](plans/2026-07-06-core-agent-adapters-llm.md) `plan:2026-07-06-core-agent-adapters-llm`
 - [2026-07-07-app-harness](plans/2026-07-07-app-harness.md) `plan:2026-07-07-app-harness`
 - [2026-07-07-core-evolution](plans/2026-07-07-core-evolution.md) `plan:2026-07-07-core-evolution`
@@ -40,12 +40,14 @@
 - [2026-07-09-question-gen-synth](plans/2026-07-09-question-gen-synth.md) `plan:2026-07-09-question-gen-synth`
 - [2026-07-09-tree-repair-resilience](plans/2026-07-09-tree-repair-resilience.md) `plan:2026-07-09-tree-repair-resilience`
 - [2026-07-11-agent-runtime-fixes](plans/2026-07-11-agent-runtime-fixes.md) `plan:2026-07-11-agent-runtime-fixes`
+- [2026-07-11-batch-tree-build](plans/2026-07-11-batch-tree-build.md) `plan:2026-07-11-batch-tree-build`
 - [app/harness/ 训练循环编排层实现计划](plans/app-harness.md) `plan:app-harness`
 - [app/search/ 搜索 Agent 装配层实现计划](plans/2026-07-07-search-module.md) `plan:2026-07-07-search-module`
 - [core/agent/ + adapters/llm 基础设施实现计划](plans/core-agent-adapters-llm.md) `plan:core-agent-adapters-llm`
 - [main.py 推理入口 + 初始 Prompt 集实现计划](plans/main-inference-entry.md) `plan:main-inference-entry`
 - [question_gen 模块实现计划](plans/question-gen.md) `plan:question-gen`
 - [Spec-1 Agent 执行环境修复实现计划](plans/agent-runtime-fixes-plan.md) `plan:agent-runtime-fixes-plan`
+- [Spec-2 建树批量并行实现计划](plans/batch-tree-build-plan.md) `plan:batch-tree-build-plan`
 - [建树修复管线三项改造实现计划](plans/tree-repair-resilience.md) `plan:tree-repair-resilience`
 - [建树模块竖切实现计划](plans/tree-module-vertical-slice.md) `plan:tree-module-vertical-slice`
 - [赛题生成工具实现计划](plans/question-gen-synth.md) `plan:question-gen-synth`