chore(deps): wave 2 — Node 26 + vitest 5 (lucide/eslint/TS held)

[JevonThompsonx]

Wave 2 off origin/main@218430c.

Part 1 — Node 26 (c4182b1):

• engines node 22.x->26.x, keep bun 1.3.10
• .nvmrc 22->26
• vercel.json: no node pin (install bun install / build bun run build) — no change
• CI ci.yml: keep setup-bun 1.3.10 (host bun 1.4.0 verified compatible, frozen install clean)
• gates at that commit: frozen install clean, tsc 0, eslint 0

Part 2 — majors:

• ADOPTED vitest 4.1.11->5.0.0 (0ba1cd5): vitest 89/89, tsc 0, eslint 0, prettier pass, next build 23/23, frozen install clean, audit delta 0 (1 moderate esbuild pre-existing)
• HELD lucide-react 0.577.0 (tried 1.38.0): TS2305 no exported member Github/Linkedin (src/app/about/page.tsx, src/app/page.tsx, src/app/projects/[slug]/page.tsx, src/components/projects/project-card.tsx) — reverted
• HELD eslint 9.39.4 (tried 10.9.1): TypeError contextOrFilename.getFilename is not a function via eslint-plugin-react (content/projects.ts) — reverted
• HELD typescript 5.9.3 (tried 7.0.2): tsc 0 but eslint fails typescript-eslint does not support TS 7.0 — reverted

Repairs used: 0/2.

AGENTS.md untouched (staleness reported: header still says Next.js 16.3.3, main has 16.3.4; pre-existing wave1 dirty stashed, not included).

Do NOT merge — review only.

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Project	Deployment	Actions	Updated
web-dev-blogsite	Error		Sep 3, 2026 3:18pm UTC