Migrate Amazon Connect TEI study to the Mercury Notebook Pattern
studies/202602_AmazonConnect -> studies/202602_TEI_Amazon_Connect,
rebuilt as pattern Variant 4 (TEI composite reproduction):
- teicalc/ self-contained engine (stdlib-only): Forrester's tables as
the never-edited verbatim anchor, NPV/ROI/payback + risk adjustment
transplanted from core/calculations, ClientDrivers overlay (contacts/
agents/fixed driver map, growth re-base, identity at composite scale),
scenario stress with core-identical semantics
- one deliverable notebook (business_case.ipynb): widget-pair sidebar
drivers, published-vs-overlay KPI columns, cash-flow/waterfall/scenario
charts, verification gate, backstage JSON data appendix
- gate + tests reproduce the published totals within PDF rounding:
NPV $78.7M / ROI 342% / payback <6 months (engine $78,713,492 /
342.48% / 0.7 months); 27 study tests, headless nbconvert green,
stage simulation leak-free, exports carry the appendix
- old Athena workflow (00_provision..04_export, config.py, seed_data.py)
deleted; git history preserves it; root test fixture repointed to
teicalc.anchor
- docs: study README rewritten; root README points new studies at
template/MercuryNotebook; pattern doc stale ctm-token-calculator paths
now cite studies/202607_CTM_GenesysCX; Variant 4 cites this study as
its realized reference
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>