Mechanical reformat — no logic changes. 398 files changed, 19125 insertions(+), 16457 deletions(-). Prettier 3.8.4 with .prettierrc (singleQuote:true, semi:true, tabWidth:2, trailingComma:all, printWidth:100). Isolated per D-13-08 for reviewability.
Plan 13-01 complete: ESLint flat config + Prettier installed and wired, SC-1 gate proven (exit 1 on deliberate violations), 119 real violations inventoried for Plan 02 (api:42, pwa:77). STATE advanced to Plan 2 of 3.