Web trade: market stats header

[0xMegie]

Area: apps/web/src/features/trade/components/MarketStatsHeader.tsx

Goal: Verify 24h volume, open interest, and mark/index price render from fixtures.

Tasks:

• Render with a fixed market stats fixture.
• Assert volume, open interest, and price values use shared formatters.
• Test missing/unavailable stat fallbacks.

Acceptance:

• No NaN or raw protocol-scale numbers leak to the UI.
• bun run --cwd apps/web test passes.

[khanavi272-spec]

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[Emmanuellsensai]

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[0takuc0mrade]

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[grantfox-oss]

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@0takuc0mrade's PR #379 was approved and merged by @IbrahimIjai.

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👏 Great work, @0takuc0mrade! Keep contributing to SO4-Markets.

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