* feat: resolve $flow_expr[...] dynamic tags on flow steps
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
* fix: run an unresolvable $flow_expr tag on the default tag and give it the step input scope
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
* refactor: resolve $flow_expr tags by path lookup instead of expression evaluation
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
* docs: say a $flow_expr tag fails to resolve, not to evaluate
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
* fix(frontend): word the $flow_expr help like the other dynamic tag lines
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
* fix: reject a malformed $flow_expr placeholder instead of queueing its literal tag
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
* refactor: render $flow_expr tag values through the $args path lookup
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
* test: pin interpolate_args through the shared tag path rendering
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5 <noreply@anthropic.com>