deps: bump fumadocs 16.15.9, lucide 1.44.0, katex 0.18.7

[AdamEXu]

Summary

Aged dependency bumps in frontend/ (≥ ~7 days as of 2026-09-17). OSV checked clean for these targets. Caret ranges preserved; lockfile resolves to the aged versions below.

Package	From	To
lucide-react	^1.43.0	^1.44.0 (lock 1.44.0)
fumadocs-core	^16.15.8	^16.15.9 (lock 16.15.9)
fumadocs-ui	^16.15.8	^16.15.9 (lock 16.15.9)
katex	^0.18.6	^0.18.7 (lock 0.18.7)

Held

• react / react-dom 19.2.8 (defer 19.3 on this monorepo today)
• posthog-js range (intentional)
• next 16.3.4
• fumadocs-mdx

Test plan

• cd frontend && pnpm install
• pnpm typecheck / pnpm lint
• pnpm build
• Smoke docs UI (fumadocs) + math (katex) + icons

[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge. No broken dependency path was found.

What we checked:

• Locked builds keep reviewed packages: No. CI and the image build use the committed pnpm-lock.yaml in frozen mode, so they install the reviewed versions.

Summary

Frontend dependency versions are updated to newer Fumadocs, Lucide, and KaTeX releases while keeping the existing package ranges. The lockfile now pins those versions and their related dependency metadata.

• Updates fumadocs-core and fumadocs-ui from 16.15.8 to 16.15.9.
• Updates lucide-react from 1.43.0 to 1.44.0.
• Updates katex from 0.18.6 to 0.18.7.
• Refreshes Fumadocs’ image-size helper and optional peer metadata in the lockfile.

Diagram

sequenceDiagram
    participant CI as CI or image build
    participant PNPM as pnpm
    participant Lock as pnpm-lock.yaml
    participant Next as Next.js build
    participant Browser

    CI->>PNPM: install --frozen-lockfile
    PNPM->>Lock: resolve reviewed versions
    Lock-->>PNPM: Fumadocs 16.15.9, Lucide 1.44.0, KaTeX 0.18.7
    CI->>Next: build frontend
    Next->>Next: compile docs, icons, and math
    Browser->>Next: request a page
    Next-->>Browser: render docs UI, icons, and styled math

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_{Reviews (1) · Last reviewed commit: "deps: bump fumadocs 16.15.9, lucide 1.44..."}