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feat(forecasting): activate §25.3 cannibalization timing axis (#1169) #1176

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bot-backend merged 1 commit from feat/cannibalization-timing-1169 into main 2026-06-09 07:11:00 +00:00
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Light1YT
60c82b2053 feat(forecasting): activate §25.3 cannibalization timing axis from launch window (#1169)
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Derive candidate_release_month = report-as-of (date.today()) + §25.1 Launch
Window peak-deficit horizon, threaded into _build_cannibalization so the timing
overlap axis activates against own-portfolio release_month (near-in-time own
projects raise cannibalization risk). Launch Window now computed once in
compute_special_indices and reused (no double-compute). Launch Window
unavailable -> candidate_release_month None -> timing axis gracefully excluded
(None-not-0); cannibalization still scores on class/price/geo. Adds stdlib
_add_months helper (year-boundary safe, no new dep). Deterministic. 168 tests.

§25.3 now: class+price+timing+geo active; unit-mix remains phase-2.

Refs #1169
 2026-06-09 11:50:06 +05:00