Fixes: #43630

PR-URL: #43632
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

Fixes: #43630

PR-URL: #43632
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

Fixes: #43630

PR-URL: #43632
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

Fixes: nodejs/node#43630

PR-URL: nodejs/node#43632
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

On windows the default stack size is still limited to 1MB in older
versions of node.  See nodejs/node#43632 which
made it into v19.0.0.

Fixes: emscripten-core#17897

On windows the default stack size is still limited to 1MB in older
versions of node.  See nodejs/node#43632 which
made it into v19.0.0.

Fixes: #17897

All supported Node.js release lines have increased the stack size on
Windows, so it is no longer necessary to use WebAssembly to access
certain algorithms on Windows.

Refs: nodejs/node#43632

…all paths

Stack-size changes:
- NODE_STACK_SIZE_KB unified to 8192 on all platforms (was 900 on Windows)
- The 900 value was based on nodejs/node#43630 which described a pre-v18.6
  limitation (1 MiB PE StackReserveSize). Node.js PR #43632 (merged July
  2022, backported to v18.6.0/v16.17.0) increased Windows StackReserveSize
  to 8 MiB, making --stack-size=8192 safe. Verified via PE header inspection
  of node.exe v22.22.1: StackReserve=0x800000 (8 MiB).
- shell-utils.ts comment updated to reference nodejs/node#43632.

Gateway patch extraction:
- patchGatewayCmdStackSize() extracted from main.ts to openclaw-config.ts as
  a shared utility (accepts homedir parameter instead of using module global).
- main.ts now imports and calls the shared function at all 3 existing sites.

Doctor gap fix:
- checks-infra.ts: patchGatewayCmdStackSize() now called after every
  'openclaw gateway install' (2 code paths) to prevent gateway.cmd from
  losing the --stack-size injection when the service is reinstalled.

Gateway restart hardening:
- All 'openclaw gateway restart' call sites now call
  patchGatewayCmdStackSize() on Windows before restarting, ensuring
  gateway.cmd always has --stack-size=8192 regardless of who regenerated it.
- Affected files: register-channel-config-handlers.ts (4 sites),
  register-channel-setup-handlers.ts (1 site),
  register-app-runtime-handlers.ts (1 site), checks-channels.ts (1 site).

Prior session changes included in this commit:
- channel-login-flow.ts: refactored to use runSpawn instead of cmd.exe shell
- shell-utils.ts: filesystem fast-path for getOpenClawPackageDirSync()
- register-channel-setup-handlers.ts: killStaleChannelLogins await fix
- register-runtime-health-handlers.ts, register-setup-handlers.ts: related
  test mock updates

Impact: All gateway start/restart/install paths on Windows now guarantee
--stack-size=8192, eliminating the AJV stack overflow (0xC00000FD) that
caused WeChat channel crashes. No behavioral change on macOS/Linux.

Verification: Electron tsconfig compilation passes. 562/567 tests pass
(5 failures are pre-existing in register-agent-handlers.test.ts due to
stale mock data, unrelated to this change).