chore(code): Upgrade Electron 42, Vite 8, React 19.2 and deps

[charlesvien]

Problem

We've fallen several majors behind (Electron 41, Vite 6), missing performance, security and bug fixes.

Changes

1. Upgrade Electron 41 → 42.3.0 (+ Forge 7.11.2, @electron/rebuild 4.0.4)
2. Override node-abi and patch better-sqlite3 for Electron 42's V8 sandbox ABI
3. Upgrade Vite 6 → 8 (Rolldown bundler) with plugin-react 6
4. Upgrade React 19.1 → 19.2, unified across code + mobile; dedupe zod 4.x
5. Bump TanStack, tRPC, Tiptap, Tailwind 4.3, vitest, playwright, storybook, turbo

How did you test this?

Manually

Automatic notifications

• Publish to changelog?
• Alert Sales and Marketing teams?

[charlesvien]

• chore(code): Upgrade Electron 42, Vite 8, React 19.2 and deps #2512 👈 (View in Graphite)
• main

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[greptile-apps]

T-Rex Logs

What T-Rex did

• Verified the Electron 42 upgrade by inspecting the lockfile resolution, confirming node-abi resolves to 3.92.0 and better-sqlite3@12.10.0 is installed with the declared patch hash.
• Validated Forge Vite plugin configuration still uses the expected build and renderer entries.
• Confirmed React is resolved through the workspace override.
• Ran the full dependency and configuration validation script to review node-abi, better-sqlite3 patch application, V8 compatibility patches, Vite peer dependency compatibility, and Forge config structure.
• Validated that the patch file patches 3 files with kExternalPointerTypeTagDefault for V8 14.6+ compatibility.
• Verified forge.config.ts uses VitePlugin with the correct build/renderer config structure, and confirmed all three vite config files exist.
• Identified a mismatch in vitest peer dependencies: @vitest/coverage-v8 requires vitest in the 0.32–1 range, but vitest resolves to 2.x, indicating a major version mismatch.
• Noted that no node_modules are installed in the sandbox, so actual builds/tests could not be run, though lockfile and registry metadata analysis are conclusive.

Artifacts

Dependency upgrade validation log

• Helps inspect the lockfile resolution and installed versions for the Electron 42 upgrade.

Generated validation script

• Contains the script used to reproduce the dependency validation checks.

Full validation script output checking node-abi, better-sqlite3 patch, Vite versions, forge config, and dependency compatibility

• The consolidated output from the validation script used to review dependencies and configurations.

Details of @vitest/coverage-v8 peer dependency mismatch with vitest 2.x

• Notes on the version mismatch between vitest-related packages.

Validation script invocation details

• Shell script content used to run the validation checks.

_{Ran code and verified through T-Rex}

Prompt To Fix All With AI

Fix the following 1 code review issue. Work through them one at a time, proposing concise fixes.

---

### Issue 1 of 1
packages/electron-trpc/package.json:35
**Update coverage provider**

`test:ci` runs Vitest with `--coverage`, but this package still installs `@vitest/coverage-v8@^0.34.0` while Vitest resolves to 2.x. The lockfile shows that coverage provider declares a peer range of `vitest >=0.32.0 <1`, so coverage runs for `@posthog/electron-trpc` can fail or run against an unsupported provider. Please bump `@vitest/coverage-v8` to the matching Vitest major.

_{Reviews (1): Last reviewed commit: "upgrade vite to 8 (rolldown)" | Re-trigger Greptile}

[k11kirky]

Unblocking your merge. looks safe, just want to trim comments and test further

[github-actions]

React Doctor found no issues in the changed files. 🎉

_{Reviewed by React Doctor for commit 0abb964.}

[stamphog]

Gates denied this PR: it touches dependency/toolchain files (package.json, pnpm-lock.yaml, pnpm-workspace.yaml, Vite configs, Electron version) and exceeds the size ceiling at 7715 lines across 13 files. Dependency and toolchain upgrades of this scope require human review.