refactor(*): 稳定期治理 - 收敛核心架构、错误语义并修复跨项目数据竞态

.gitignore

@@ -18,6 +18,8 @@ docs/content/docs/plugins/*
 !docs/content/docs/backend/
 docs/content/docs/backend/*
 !docs/content/docs/backend/task-runtime-stability.mdx
+!docs/content/docs/backend/http-api.mdx
+!docs/content/docs/backend/code-map.mdx
 !docs/content/docs/backend/newapi-channel-2.mdx
 .env*
 !.env.example
@@ -57,3 +59,6 @@ camera_language_guide.md
 .superdesign
 .playwright-cli/
 /project-memory/
+
+# Local backend executable; never commit build output.
+backend/cmd/server/server