Update dependency anomalyco/opencode to v1.18.12

[vinnyang]

This PR contains the following updates:

Package	Update	Change
anomalyco/opencode	patch	1.18.11 → 1.18.12

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Release Notes

anomalyco/opencode (anomalyco/opencode)

v1.18.12

Compare Source

Core

Bugfixes

• Fixed Azure GPT-5.5+ completion requests failing when reasoning is enabled. (@​frederiknsgo)

Desktop

Bugfixes

• Reduced composer lag when drafts include large pasted images or attachments.
• Let project search match any known recent project instead of only the first five. (@​NumerousJLs)
• Cleared stale assistant errors from the timeline once the same turn resumes streaming.
• Skipped legacy config reads against v2 servers to avoid spurious config loading issues. (@​resetsix)

Thank you to 4 community contributors:

• @​resetsix:
  • fix(app): skip legacy config reads for v2 (#​40211)
• @​NumerousJLs:
  • fix(app): search every known project in the open project dialog (#​40202)
• @​MagnumGoYB:
  • docs: remove obsolete vouch system section (#​40266)
• @​frederiknsgo:
  • fix: gpt-5.5+ in combination with azure fails with reasoningEffort (#​40265)

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