docs: ai 协作文档体系重构与多 ai 仲裁结果落地

1.AI 协作文档体系重构(objections/worklines/contracts+matrix.md)

2.coord 仲裁文档(final-decisions/cross-review/final-rulings/orchestration)

3.各服务 01/02 文档补全

4.共享包初始化(shared-ts/shared-go/hooks/ui-components/ui-tokens)

5.Proto 契约补全

6.004 架构影响地图更新

7.端口分配表

8.设计规格文档

packages/ui-tokens/src/spacing.ts

@@ -0,0 +1,23 @@
+export const spacing = {
+  space0: "0rem",
+  space1: "0.25rem",
+  space2: "0.5rem",
+  space3: "0.75rem",
+  space4: "1rem",
+  space5: "1.25rem",
+  space6: "1.5rem",
+  space7: "1.75rem",
+  space8: "2rem",
+  space9: "2.25rem",
+  space10: "2.5rem",
+  space11: "3rem",
+  space12: "3.5rem",
+  space13: "4rem",
+  space14: "4.5rem",
+  space15: "5rem",
+  space16: "6rem",
+  space17: "7rem",
+  space18: "8rem",
+  space19: "9rem",
+  space20: "10rem",
+} as const;