Fix: increase OpenCode server timeout to allow for slower OpenCode server startups

[AJ-505]

What Changed

Increases timeout for Opencode server to prevent abrupt failures for slower spawn times.

Fixes #2337

Why

Currently, the OpenCode provider times out after 5 seconds before returning an error (Failed to execute OpenCode CLI health check: Timed out waiting for OpenCode server start after 5000ms.). Increase the timeout to 20 seconds to resolve the issue.

Why 20 seconds?

In my testing, the OpenCode server takes about 9 seconds at best, and 12 seconds at worst, to restart (on a Linux PC). 20 seconds is basically some extra allowance in case of longer delays.

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

Verification

• vp check
• vp run typecheck
• vp test run apps/server/src/provider/Layers/OpenCodeProvider.test.ts

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Note

Low Risk
Single constant change in provider startup timing with no auth, data, or API contract changes; worst case is slightly longer waits before failure.

Overview
Raises the default wait for local OpenCode server startup from 5s to 20s in opencodeRuntime.ts (DEFAULT_OPENCODE_SERVER_TIMEOUT_MS), so startOpenCodeServerProcess / connectToOpenCodeServer are less likely to fail with a health-check timeout when the CLI is slow to print opencode server listening.

Callers can still pass timeoutMs to override the default; only the fallback when that option is omitted changes.

^{Reviewed by Cursor Bugbot for commit 0941e8f. Bugbot is set up for automated code reviews on this repo. Configure here.}

Note

Increase OpenCode server startup timeout from 5s to 20s

Raises DEFAULT_OPENCODE_SERVER_TIMEOUT_MS in opencodeRuntime.ts from 5,000 ms to 20,000 ms to accommodate slower OpenCode server startups.

^{Macroscope summarized 0941e8f.}

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[macroscopeapp]

Approvability

Verdict: Approved

This PR increases a timeout constant from 5 to 20 seconds - a simple, low-risk configuration tweak that allows more time for slower server startups without changing any functional behavior.

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