* fix(config-get): return schema default for context_window when absent (#2943)
cmdConfigGet in bin/lib/config.cjs now consults a SCHEMA_DEFAULTS map before
emitting "Key not found", so context_window (and any future schema-defaulted
keys) return their default value (exit 0) when not set in config.json.
Also updates the stale subagent-timeout.test.cjs assertion that expected the
old broken behavior (exit 1 / "Key not found") to match the corrected behavior.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* test: use distinct sentinel to prove --default wins over schema default (#2943)
* docs: update CHANGELOG.md for #2943 fix
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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