chore(deps): consolidate Dependabot updates (astro 7 / vite 8 migration)

[jldeen]

Summary

Consolidates the two open Dependabot PRs into a single PR, and fixes the Astro 7 / Vite 8 migration that was blocking the astro major bump.

Replaces:

• chore(deps): bump astro from 6.4.8 to 7.0.3 #116 — astro 6.4.8 → 7.0.3
• chore(deps): bump the minor-and-patch group with 7 updates #115 — minor-and-patch group (7 updates)

Dependency changes

Package	From	To
astro	^6.4.8	^7.0.3
framer-motion	^12.40.0	^12.42.0
preact	^10.29.2	^10.29.3
tailwindcss	^4.3.1	^4.3.2
@playwright/test	^1.61.0	^1.61.1
@types/node	^26.0.0	^26.0.1
baseline-browser-mapping	^2.10.38	^2.10.40
vite (override)	^7	^8
@tailwindcss/postcss → @tailwindcss/vite	^4.3.1	^4.3.2

Why the migration was needed

Astro 7 upgrades to Vite 8, which broke astro build on the standalone #116:

1. rollupOptions.input should not be an html file ... SSR error — the vite: "^7" override added in fix(security): force esbuild >=0.28.1 (GHSA-g7r4-m6w7-qqqr / alert #35) #114 (as a stopgap to avoid the Astro 7 jump while patching esbuild) forced a Vite/Astro version mismatch. Bumped the override to ^8.
2. [postcss] ENOENT ... 'tailwindcss' — Vite 8's CSS pipeline can no longer resolve @import "tailwindcss" through postcss-import. Migrated Tailwind v4 to the official @tailwindcss/vite plugin: added the dep, wired it into astro.config.mjs, and removed @tailwindcss/postcss + postcss.config.mjs.

Also gitignored Playwright output dirs (test-results/, playwright-report/).

Validation

Run locally with Node:

• ✅ npm run build — completes, Tailwind CSS present in output
• ✅ npm run check (astro check) — 0 errors, 0 warnings
• ✅ npm run test (Playwright) — 1 passed

Once this merges, #115 and #116 can be closed as superseded.

Co-authored-by: Copilot App 223556219+Copilot@users.noreply.github.com

[Copilot]

Pull request overview

This PR consolidates multiple Dependabot updates and completes the Astro 7 / Vite 8 migration by switching Tailwind v4 to the @tailwindcss/vite plugin and removing the old PostCSS-based setup, unblocking astro build under Vite 8.

Changes:

• Upgraded core dependencies (notably Astro 7) and updated the vite override to ^8 to resolve the Astro/Vite mismatch.
• Migrated Tailwind v4 from @tailwindcss/postcss + postcss.config.mjs to the @tailwindcss/vite plugin wired through astro.config.mjs.
• Added Playwright output directories to .gitignore.

Show a summary per file

File	Description
postcss.config.mjs	Removes the PostCSS config previously used for Tailwind.
package.json	Updates dependencies (Astro 7, Vite override 8) and swaps Tailwind tooling dep to @tailwindcss/vite.
package-lock.json	Regenerates lockfile to reflect the upgraded dependency graph (Astro 7 / Vite 8).
astro.config.mjs	Registers the @tailwindcss/vite plugin in Astro’s Vite config.
.gitignore	Ignores Playwright output directories (test-results/, playwright-report/).

Review details

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• Files reviewed: 3/5 changed files
• Comments generated: 1
• Review effort level: Low