chore: bump typescript to ^6.0.3

[vreshch]

What

• Bump typescript ^5.8.3 → ^6.0.3 (resolves 6.0.3)
• Add src/css.d.ts with declare module '*.css' — TS6 now emits TS2882 for side-effect imports of CSS files (globals.css, crystalview.css, molpad.css)

No @typescript-eslint change needed: already ^8.x, resolves to 8.65.0 (peer-compatible with TS 6.0, cap <6.1.0).

Verify

npm run verify green: type-check + lint + build (Next 15.5.22) + 23/23 vitest tests. Prettier clean.

[github-actions]

🎉 PR Validation ✅ PASSED

Commit: f041f8333674827bb0b401c0fac8f4b7af369208
Branch: feature/ts6-bump

Checks:

• ✅ Dependencies installed
• ✅ Linting passed
• ✅ Format check passed
• ✅ Build successful
• ✅ Docker build
• ✅ E2E tests

Visual Changes: 8 of 8 screenshots changed

📸 contacts desktop — 100% changed

📸 contacts mobile — 100% changed

📸 home desktop — 100% changed

📸 home mobile — 100% changed

📸 interests desktop — 100% changed

📸 interests mobile — 100% changed

📸 projects desktop — 100% changed

📸 projects mobile — 100% changed

Ready to merge! ✨

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⏰ Generated at: 2026-08-03T21:40:54.898Z