Add 2026-calendar-year shadow xG files
Round-2 showed AggV2 flat at 96/181 despite adding the `*2025.json` files. Reason: for calendar-year leagues (arg-primera, brazil-a, mls), the bets we're scoring are from April 2026 — the 2025 files only contain matches
Round-2 showed AggV2 flat at 96/181 despite adding the *2025.json files. Reason: for calendar-year leagues (arg-primera, brazil-a, mls), the bets we're scoring are from April 2026 — the 2025 files only contain matches through Dec 2025, so the signal filter returns no prior-match xG. The currently-active season for these leagues is the 2026 file.
Added *2026.json as a gitignore allow rule and force-added the three 2026 files (6 total across v2 + aggregate dirs). Expected AggV2 gain: +10 bets (brazil-a 7, arg-primera 2, mls 1).
Note: arg-b-nacional still 0% for AggV2 — no shadow xG file exists yet for that league, only football-data-cache coverage.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>