Moving a card out of a non-legacy workflow column — e.g. Coding (Ideas)
"ideas" → "todo" — was rejected with "Invalid transition: 'ideas' → 'todo'.
Valid targets: none".
Workflow columns graduated to always-on but moveTaskInternal's compat-flag
legacy branch (the default path, since no experimental flag is emitted)
validated every move against the legacy VALID_TRANSITIONS table, which is
keyed only by the built-in column ids. Default-workflow moves survived by
coincidence (its ids ARE the legacy ids); a task in a custom column had no
key so every move was rejected.
The legacy branch now resolves a non-legacy source column's targets from the
task's own workflow adjacency (resolveAllowedColumns), while keeping the
legacy bare-Error contract intact for legacy columns (transition-parity /
characterization suites unchanged). Adds a regression test covering the
ideas -> todo -> in-progress -> in-review chain and non-adjacent rejection.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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