docs(frontier): clarify bounded lossless transport

Signed-off-by: huangruiteng <huangrt01@163.com>

Author: huangruiteng

docs/architecture/rfcs/typescript-control-plane-migration-v0.md

@@ -606,6 +606,12 @@ excluded/eligible edits and newly available work through a real provider with
 stale/missing display; a read-only private-snapshot comparison remains private.
 This closes one T3 rule group, not the remaining consumers or T1/T2/D1–D3.
 
+Large source facts use lossless deflate/base64 transport above 512 KiB, retaining
+the exact v0 material bytes and the shared 2 MiB request boundary. The TS decoder
+rejects malformed payloads and inflation beyond 64 MiB; it never truncates rows
+or silently falls back to Python decisions. Real completed-history HTTP reads
+and complete-checkpoint tail edits guard against transport-size regressions.
+
 The list-filter consumer now uses `compact_evaluated_todo_group` instead of
 re-running resume evaluation on active-only rows. Initial parsing/canonical reads
 still evaluate against the full source through the TS owner; filtering requires

docs/architecture/rfcs/typescript-control-plane-migration-v0.zh-CN.md

@@ -462,6 +462,11 @@ replan。这些是明确的只读语义修正，不是执行授权。既有 cano
 新可用工作及陈旧／缺失展示；私有快照只读对照结果不公开原始数据。
 本批闭合一个 T3 规则组，不代表其余 consumer 或 T1/T2/D1–D3 完成。
 
+来源 facts 超过 512 KiB 时使用无损 deflate/base64 传输，保留精确 v0 内容和共享
+2 MiB 请求边界。TS 拒绝畸形载荷及解压超过 64 MiB 的输入，不截断 Todo，也不
+静默退回 Python 决策。真实 completed-history HTTP 和完整 checkpoint 尾项变更
+回归保护传输容量语义。
+
 列表过滤现改用 `compact_evaluated_todo_group`，不再用仅活动项重算 resume。
 初始解析／canonical 读取仍通过 TS owner 在完整来源上求值；过滤要求匹配的已求值
 条件，不能把归档中的已完成依赖变成丢失。共享合成 fixture 增补“有 scope 无 outcome”