docs(plan): stakeholder interview subagents implementation plan
Bite-sized TDD plan covering 21 tasks across 7 phases: setup → foundation
(models, YAML loader, LLM stub, base interviewer) → 4 subagents
(longitudinal, diversity Q-sort+PCA, Delphi 3-round, scenario) → storage
+ Zep writer → orchestrator + sim lifecycle hooks + synthesiser →
Flask /api/interview blueprint → end-to-end integration test → Vue Step4b
with d3 visualisations. Each task lists exact files, failing test code,
implementation code, run commands, and commit message.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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