chore: build the visual reporter with Vite 8

[plum117]

Summary

Step 4 (last) of the visual reporter upgrade: Vite 6 → 8 (replaces Dependabot #1263).

Depends on #1293 (React 19) → #1292 (React Router 7) → #1291 (Vite 6). Their commits are included here; after they are merged, this PR shows only the Vite 8 commit.

React Router 7 supports Vite 5 to 8. Vite is a development dependency of the reporter (it builds the static report UI); users do not install it.

Changes

• vite ^6.4.4 → ^8.3.3 (8.3.4 was published today and is blocked by the 1-day minimumReleaseAge).
• vite-tsconfig-paths is removed: Vite 8 resolves the tsconfig paths itself (resolve.tsconfigPaths: true) for our ~/* alias. This also removes the last TypeScript 6 peer warning, which came from its tsconfck dependency (typescript ^5).

Test

• The built UI is pixel-identical: the demo report served on a fresh port and opened in headless Chrome (WebdriverIO), home view and comparison overlay: 0 different pixels compared with the Vite 5 / Remix build. Also under the GitHub Pages base path (/visual-testing/).
• The Status filter (react-select) works ("Passed" → 19 cards, "Failed" → 17). No browser console errors.
• Reporter typecheck, Oxlint, pnpm test (1077 unit tests), frozen install: pass. pnpm peers check: no TypeScript peer warning any more.
• The SelectHeader.tsx sourcemap message of the old builds is gone with Vite 8.

No changeset: development dependencies only, and the built UI does not change.

The whole reporter track

PR	Step
#1291	Vite 5 → 6
#1292	Remix 2 → React Router 7
#1293	React 18 → 19
this PR	Vite 6 → 8, built-in tsconfig paths

After all of them: close #1267, #1264 and #1263 (Dependabot), which these PRs replace.

🤖 Generated with Claude Code

[changeset-bot]

⚠️ No Changeset found

Latest commit: 58fac14

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[greptile-apps]

Confidence Score: 5/5

[High impact] The PR appears safe to merge; no actionable issues were found.

Summary

Upgrades the visual reporter to Vite 8, React Router 7, and React 19.

• The visual reporter builds and serves as a static React Router app.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  A["React Router build with Vite 8"] --> B["build/client"]
  B --> C["CLI copies report files"]
  B --> D["GitHub Pages"]
  C --> E["Browser loads report"]
  D --> E
  E --> F["Fetch static/report/output.json"]

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_{Reviews (1) · Last reviewed commit: "chore: build the visual reporter with Vi..." · Reviewed by Greptile}