* fix(3266): preserve wave 0 and bucket plans by depends_on DAG in phase-plan-index
Fixes two cooperating bugs in the phase-plan-index builder:
1. Wave 0 collapse: `parseInt(...) || 1` coerced parsed value `0` to `1` due to
JS falsy default. Fixed with `Number.isNaN` guard.
2. depends_on ignored: wave-bucketing used only the `wave:` frontmatter field.
Now replaced with Kahn's topological-level algorithm over `depends_on`:
source nodes (no in-phase deps) → lowest level; each plan's level = max(deps'
levels) + 1. Declared `wave:` that disagrees with computed level emits a
non-fatal warning on the result. Cycle detection throws GSDError.
`PlanInfo` gains `depends_on: string[]`. `PhasePlanIndex` gains `warnings?: string[]`.
Both TS (`sdk/src/query/phase.ts`) and CJS twin (`get-shit-done/bin/lib/phase.cjs`)
fixed identically.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* chore: add changeset for #3276
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(phase): resolve depends_on against canonical plan id (#3276 CR)
Build a secondary `canonicalToId` index alongside `planMap` so that a
dependency declared as '03-01' resolves to a descriptive plan stored
under '03-01-auth-hardening', preventing silent wave-ordering failures.
Applied at both DAG construction sites in phase.cjs and the SDK's
phase.ts (k014 parity). Regression test added.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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