Update DBD perk and loadout data

[github-actions]

Automated scrape of the DBD wiki's Perks, Items, Add-ons, and Offerings pages, plus the Russian names and descriptions from the RU wiki.

Changes to pre-existing entries — needs a human look before merging (see below). A change here could be a legitimate wiki correction, or the scraper clobbering something — same class of bug that silently reverted the two icon pins in data/overrides/perks.json before those existed.

2 changes to existing data — needs a human look:

• Perk: existing entry "survivor/boon-steadfast" changed
• Perk: existing entry "killer/hex-under-your-thumb" changed

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If a new chapter landed, check the Russian actually came through — the RU wiki lags the EN one by days, and when it has no page yet the card falls back to English silently. A descriptionRu in data/overrides/perks.json is the hand-authored override for that case.

For the loadout data specifically, also spot-check that any new killer's add-ons resolved to the right character name (see resolvePowerToCharacter in scripts/scrape-loadout.ts) — it falls back to .All and logs a warning if it can't, so check the workflow log for Could not resolve a killer for power heading too. A new killer should also pick up a Power icon automatically (scrapeKillerPowerIcons) — check the log for No Power icon found on <killer>'s wiki page if one's missing from data/killer-power-icons.json.