fix(faults): enable real-time toast notifications for SSE fault events

[mfaferek93]

Pull Request

Summary

• Subscribe to fault SSE stream on connect, unsubscribe on disconnect
• Listen for named SSE events (fault_confirmed, fault_cleared) instead of only unnamed events - gateway sends named events
• Extract fault data from SSE payload structure { event_type, fault, timestamp }

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Issue

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• closes #

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Type

• Bug fix
• New feature
• Breaking change
• Documentation only

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Testing

How was this tested / how should reviewers verify it?

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Checklist

• Breaking changes are clearly described (and announced in docs / changelog if needed)
• Linting passes (npm run lint)
• Build succeeds (npm run build)
• Docs were updated if behavior or public API changed

[Copilot]

Pull request overview

Enables real-time fault toast notifications by subscribing to the gateway’s SSE fault stream on connect and handling the gateway’s named SSE events/payload shape.

Changes:

• Subscribe to the faults SSE stream on connect and unsubscribe on disconnect.
• Update SSE parsing to support gateway payload shape { event_type, fault, timestamp }.
• Listen for named SSE events (fault_confirmed, fault_cleared) with a known-events fallback.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
src/lib/store.ts	Hooks fault stream subscription lifecycle into connect/disconnect.
src/lib/sovd-api.ts	Updates SSE subscription to handle named events and unwrap nested fault payloads.

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

[Copilot]

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