* feat(review): add per-CLI model selection via config
- Add review.models.<cli> dynamic config keys to VALID_CONFIG_KEYS
- Update review.md to read model preferences via config-get at runtime
- Null/missing values fall back to CLI defaults (backward compatible)
- Add key suggestion for common typo (review.model)
- Update planning-config reference doc
Closes#1849
* fix(review): handle absent and null model config gracefully
Address PR #1859 review feedback from @trek-e:
1. Add `|| true` to all four config-get subshell invocations in
review.md so that an absent review.models.<cli> key does not
produce a non-zero exit from the subshell. cmdConfigGet calls
error() (process.exit(1)) when the key path is missing; the
2>/dev/null suppresses the message but the exit code was still
discarded silently. The || true makes the fall-through explicit
and survives future set -e adoption.
2. Add `&& [ "$VAR" != "null" ]` to all four if guards. cmdConfigSet
does not parse the literal 'null' as JSON null — it stores the
string 'null' — and cmdConfigGet --raw returns the literal text
'null' for that value. Without the extra guard the workflow would
pass `-m "null"` to the CLI, which crashes. The issue spec
documents null as the "fall back to CLI default" sentinel, so this
restores the contract.
3. Add tests/review-model-config.test.cjs covering all five cases
trek-e listed:
- isValidConfigKey accepts review.models.gemini (via config-set)
- isValidConfigKey accepts review.models.codex (via config-set)
- review.model is rejected and suggests review.models.<cli-name>
- config-set then config-get round-trip with a model ID
- config-set then config-get round-trip with null (returns "null")
Tests follow the node:test + node:assert/strict pattern from
tests/agent-skills.test.cjs and use runGsdTools from helpers.cjs.
Closes#1849