Fix ESLint config and unblock production build

[Dawittekle]

Summary

This PR restores a working lint/build pipeline for the frontend.

What changed

• fixed the flat ESLint config so the configured rules load correctly
• fixed hook naming/order issues that were blocking lint/build
• moved hook-based table action logic out of table cell callbacks into proper client components
• moved repeated waveform hook logic out of table cell callbacks into a reusable client component

Why this was needed

After fixing the ESLint config, the real build blockers were react-hooks/rules-of-hooks errors.

The blocking patterns were mainly:

• hooks used in lowercase components
• hooks used inside table cell callbacks
• hooks used in plain helper functions
• hooks called conditionally / after early returns

Some larger-looking refactors in this PR were still required, because those hook-rule violations were present in table action cells and waveform preview cells across several screens.

Verification

Ran locally:

• corepack pnpm lint
• corepack pnpm build

Both pass.