cknnsshxsdocs: improve AGENTS.md and CLAUDE.md

AGENTS.md — Window Manager (OpenHarmony)

This repo is the window management subsystem of OpenHarmony. It provides core capabilities for window and display management, serving as the foundational subsystem for UI display. See README.md for full architecture details.

What is `window_manager`

window_manager is a Client-Server architecture subsystem. Key modules:

wm/ — Window Manager Client
dm/ — Display Manager Client
wmserver/ — Window Manager Server (separated arch)
dmserver/ — Display Manager Server
window_scene/ — Window Manager Server (unified arch)
interfaces/innerkits/ — Native APIs
interfaces/kits/ — JS/NAPI APIs
extension/ — Ability Component window integration
utils/ — Shared utilities

Two compile-time architectures are selected via window_manager_use_sceneboard (set externally by the OpenHarmony build system):

Value	Architecture	Key module compiled
`false`	Separated	`wmserver/`
`true`	Unified	`window_scene/`

WorkFlow

CodeStyle specification

You must follow the CodeStyle specification when you write code.

Key rules:

C++ standard: C++11; Column limit: 120; Indent: 4 spaces, no tabs
Namespace: always OHOS::Rosen
Naming: Classes PascalCase, methods camelCase, member vars camelCase_, constants UPPER_SNAKE_CASE, files snake_case
Include order: corresponding header → stdlib → OH framework → interfaces/ → other internal
Logging: TLOGD / TLOGI / TLOGW / TLOGE
Error handling: return WMError/WmErrorCode; early-return with WLOGFE log
Memory: sptr<T> for IPC/singletons, wptr<T> for weak refs; prefer RAII
Every source file must begin with the Apache 2.0 license header

Testing specification

You must follow the Testing specification after you write testing code and keep testing suite pass.

Git Commit Rules

User approval required: Ask user before git commit. Use git commit -s after approval.
Angular format: type(scope): subject (feat, fix, docs, style, refactor, test, chore)
Co-authored footer: Append Co-Authored-By: Agent to every commit message.

Example:

feat(auth): add user login feature

Signed-off-by: Your Name <your.email@example.com>
Co-Authored-by: Agent