fix: declare sharp for image optimization

[sawka]

Summary

• Declare sharp as a development dependency so vite-plugin-image-optimizer can load its optional peer during renderer builds.
• Lock the native packages for supported platforms.

Verification

• npm run build:dev exited 0 and successfully optimized all four logo images (about 63% total savings).
• Sharp loaded and encoded a PNG on Linux x64.
• task check:ts still fails on existing preview-mock type errors, unrelated to this dependency change.

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Advanced

Run ID: 99d8402a-b196-4d7a-917f-7cd6cce377af

📥 Commits

Reviewing files that changed from the base of the PR and between d9dbbbf and bc4154b.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (1)

• package.json

Included review availability: Your plan provides up to 10 included reviews per hour; 9 remain after this review.

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Walkthrough

The package manifest adds sharp version ^0.34.5 as a development dependency.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~3 minutes

Merge Risk: ⚪ Minimal · up to bc415

No merge blocker was identified for this development-dependency change; the reviewed manifest and lockfile are consistent.

Architecture Summary

Architecture risk: 🔵 Low · up to bc415

The change affects 1 system.

Changed systems: package.json

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — package.json (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in package.json: Added sharp (^0.34.5) as a development dependency.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly states that the change declares sharp for image optimization. It is concise and directly related to the main change.
Description check	✅ Passed	The description explains why sharp was added, identifies the native package locking, and reports verification results. It is directly related to the changeset.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

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