Add 2024-25 top 20 single-game defensive eFG% rankings

[millxing]

Motivation

• Provide a compact, reproducible ranking of the top single-game team defensive performances for the 2024–25 regular season using defensive eFG% as the metric.

Description

• Added interpretations/top20_single_game_def_efg_2024-25.csv containing the top 20 team single-game defensive eFG% records with fields for rank, date, game id, team, opponent, venue, raw counts, and computed def_efg_pct.
• Added interpretations/top20_single_game_def_efg_2024-25.md with a human-readable markdown table summarizing the same ranking and the eFG% formula used ((Opp FGM + 0.5 * Opp 3PM) / Opp FGA).
• The ranking is computed from team_game_logs_2024-25.csv by treating each team-game as a defensive entry (home defense = opponent road stats and vice versa), filtering for regular season games, computing def_efg_pct, sorting ascending (lower is better), and taking the top 20.

Testing

• Ran the data generation script via a one-shot python - <<'PY' ... PY invocation which completed successfully and produced the CSV and MD outputs.
• Verified output row count with wc -l to confirm 20 ranked rows plus header for the CSV.
• Rendered and spot-checked the produced markdown with sed -n '1,25p' to confirm table formatting and sample entries.
• All automated checks completed successfully.

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Codex Task