docs: anchor each subsystem page to its package group; make group READMEs thin tables

core.md read as a type grab-bag: LLM wire vocabulary up front, the agent/loop story buried, and no correspondence to packages/core. It now opens on the packages/core control spine — the package-by-package loop map with a Page column into session/system-prompt/tools/scope — and keeps only what the spine group declares plus the repo-wide patterns: the Agent handle with its delivery/cancellation/interception contracts, the SessionEvent envelope, branded ids, the …Map pattern. The conversation vocabulary (Message/ContentBlock, the model request, adapters — 17 type-equiv blocks) moves to llm-streaming.md, which now declares packages/llm end-to-end; the duplicate ContentBlockMap paste near its seam section folds into the moved section, and the manifest, LINK_MAP, README table rows, website label (Core data structures → Core), and inbound anchors follow.

Every packages/<group>/README pair is now a thin front door in one shape: a why-first intro (bash's seam-pattern-first paragraph rewritten as 'shell execution for the agent'), the package table, and a closing pointer to the owning docs/subsystems page — the bash-style table stays the load-bearing middle. Load-bearing trailing paragraphs relocate rather than vanish: the fs no-timeout rationale becomes a filesystem.md section (both languages), session's four sectioned tables merge into one 12-row table, examples' legacy-bin H2 collapses to a pointer at jsonrpc-demo's README, and design rationale that already lives in an Agent Note or subsystem page is now linked instead of restated. All 40 pair records re-recorded.

packages/boot/README.zh.md

@@ -2,8 +2,10 @@
 
 [English](README.md) | 中文
 
-各 app bin 共享、与通道无关的启动库。一个角色完备的单包组：它不归属任何通道也不归属任何组装——`apps/cli`、[`scaffold/`](../scaffold/README.md) 启动器和 [`examples/`](../examples/README.md) 各演示 bin 都消费它。
+各 app bin 共享的、与渠道无关的启动库：`apps/cli`、[`scaffold/`](../scaffold/README.md) 启动器与 [`examples/`](../examples/README.md) demo bin 都消费它。
 
 | 包 | 职责 | ctx 键 |
 |---|---|---|
 | `app-boot/` | app bin 的共享启动粘合层：加载 `.env`、会明确报错的 Loader 保护机制、感知快照的配置解析，以及等待整棵树停稳的启动序列 | （供各 bin 使用的库） |
+
+启动序列与个人配置契约见 [`app-boot/README.md`](app-boot/README.md)。