feat(ui): add persistent view toggle state to upload panel (#570)

[annukumar123]

#570

Core Modifications

• UploadPanel.jsx: Introduced a persistent state layer to track panel minimization via localStorage on a per-session basis (upload-panel-collapsed:${sessionId}). Converted the panel container to use conditional rendering layouts so hidden assets are completely unmounted from the DOM tree when collapsed.
• UploadPanel.test.jsx: Designed robust mock unit tests isolating JSDOM Storage prototype configurations to confirm persistence parameters decode smoothly across mounting pass loops.

Verification Checklist

• Local state initialization validations passed via Vitest runner targets.
• Verified localStorage configurations write correctly across active workflow state transitions.

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[annukumar123]

@imDarshanGK
Both CI are working . you can verify now