Use idiomatic Effect primitives for websocket reconnects

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What Changed

• Modeled websocket reconnect backoff delays with effect/Duration and retry exhaustion with Option.
• Kept a millisecond compatibility helper for UI surfaces that still display delays in milliseconds.
• Replaced the ad-hoc websocket pong JSON.parse check with a Schema.fromJsonString tagged decoder.
• Updated reconnect backoff tests to use @effect/vitest with assert.

Why

This keeps the reconnect policy closer to Effect primitives end-to-end, makes absence explicit with Option, and gives heartbeat parsing typed schema validation while preserving existing runtime behavior.

UI Changes

Not applicable; no user-facing UI rendering changed.

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes
• I included a video for animation/interaction changes

Validation:

• pnpm exec vp run --filter @t3tools/client-runtime test -- --run src/reconnectBackoff.test.ts src/wsTransport.test.ts (24 files, 180 tests passed)
• pnpm exec vp check (passed; existing lint warnings only)
• pnpm exec vp run typecheck (passed; existing suggestion outside this change remains)

  

Note

Replace millisecond primitives with Effect Duration and Option types in websocket reconnect backoff

• Refactors ReconnectBackoffConfig in reconnectBackoff.ts to use Duration.Input for delay fields and Option<number> for maxRetries instead of raw numbers and null.
• Adds a new getReconnectDelay function returning Option<Duration>, with getReconnectDelayMs kept as a compatibility wrapper returning milliseconds or null.
• Updates wsRpcProtocol.ts to consume the new Option/Duration backoff API and replaces manual JSON pong detection with a schema-based decoder.
• Updates wsConnectionState.ts to derive exported millisecond constants via Duration conversion and Option.getOrThrow.
• Risk: if DEFAULT_RECONNECT_BACKOFF.maxRetries is Option.none, module evaluation in wsConnectionState.ts will now throw rather than silently produce undefined.

^{Macroscope summarized cd89779.}

[github-actions]

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