Closes deferred phases 04 + 05 of loldle-new-modes plan.
- loldle-ability: 5 guesses, DDragon ability icon as photo. State pins
slot (P/Q/W/E/R) so the same icon shows every turn. Abilities pulled
from DDragon per-champion — same source loldle.net uses at runtime.
- loldle-splash: 4 guesses, random skin splash as photo. Skin pool
scraped from loldle.net bundle (var Ad=[…] — 172 champs × 1939 skins,
non-chroma, matches their splash mode exactly). URLs from Riot
DDragon CDN (no version segment, stable across patches).
- fetch-ddragon-data.js: extended to write all four JSONs in one run.
Shares a single DDragon per-champion fetch cycle (concurrency 10).
- Credits loldle.net + Riot Games in all loldle-family READMEs.
19 new tests (503 total). Lint clean. register:dry reports 12 loldle_*
commands with no conflicts.
