* fix(gateway): increase WS handshake timeout from 3s to 10s
The 3-second default is too aggressive when the event loop is under load
(concurrent sessions, compaction, agent turns), causing spurious
'gateway closed (1000)' errors on CLI commands like `openclaw cron list`.
Changes:
- Increase DEFAULT_HANDSHAKE_TIMEOUT_MS from 3_000 to 10_000
- Add OPENCLAW_HANDSHAKE_TIMEOUT_MS env var for user override (no VITEST gate)
- Keep OPENCLAW_TEST_HANDSHAKE_TIMEOUT_MS as fallback for existing tests
Fixes#46892
* fix: restore VITEST guard on test env var, use || for empty-string fallback, fix formatting
* fix: cover gateway handshake timeout env override (#49262) (thanks @fuller-stack-dev)
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Co-authored-by: Wilfred <wilfred@Wilfreds-Mac-mini.local>
Co-authored-by: Ayaan Zaidi <hi@obviy.us>
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