chore: bump muxcore to v0.21.6

[thebtf]

Summary

• bump github.com/thebtf/mcp-mux/muxcore from v0.19.7 to v0.21.6
• run go mod tidy
• verify the upgrade as a consumer-side no-op for engram

Why v0.21.6 instead of v0.20.4

Issue engram#114 was opened for v0.20.4, but the issue itself was later updated to note that v0.20.4 is superseded and the correct drop-in target is now v0.21.6.

Verification

• go build ./...
• go test ./... -count=1

Issue

• resolves engram#114 on the target side once merged and verified

Summary by CodeRabbit

• Обслуживание
  • Обновлены версии зависимостей проекта для повышения совместимости и стабильности. Оптимизирована структура требований к зависимостям.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 3516e00f-3f66-44cc-ba69-050767a0e655

📥 Commits

Reviewing files that changed from the base of the PR and between 61aaf02 and 444aa77.

⛔ Files ignored due to path filters (1)

• go.sum is excluded by !**/*.sum

📒 Files selected for processing (1)

• go.mod

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Walkthrough

Обновлена версия модуля github.com/thebtf/mcp-mux/muxcore с v0.19.7 до v0.21.6. Перемещена зависимость golang.org/x/sync из прямых в косвенные требования. Добавлена новая косвенная зависимость github.com/Microsoft/go-winio версии v0.6.2.

Changes

Cohort / File(s)	Краткое описание
Обновления модулей go.mod	Обновлена версия mcp-mux/muxcore (v0.19.7 → v0.21.6), перемещена golang.org/x/sync в косвенные зависимости, добавлена новая зависимость go-winio v0.6.2.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• chore(deps): bump mcp-mux/muxcore v0.19.0 → v0.19.7 (drop-in) #182: Оба PR изменяют одну и ту же зависимость github.com/thebtf/mcp-mux/muxcore через обновление версии (v0.19.0→v0.19.7 в связанном PR, v0.19.7→v0.21.6 в текущем).
• chore(deps): bump muxcore to v0.19.0 #164: Оба PR изменяют ту же зависимость github.com/thebtf/mcp-mux/muxcore — связанный PR обновляет её до v0.19.0, текущий PR дополнительно обновляет до v0.21.6.

Suggested labels

ai-review:active

Poem

🐰 Прыг-скок, версии летят на ветер,
mcp-mux растёт — красивее нету!
Зависимости танцуют в ряд,
go-winio спешит в наш конвой-отряд. 🌙✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: bumping the muxcore dependency to v0.21.6, which aligns with the primary objective and the file changes in go.mod.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/muxcore-v0.21.6-114

Warning

There were issues while running some tools. Please review the errors and either fix the tool's configuration or disable the tool if it's a critical failure.

🔧 golangci-lint (2.11.4)

Error: can't load config: unsupported version of the configuration: "" See https://golangci-lint.run/docs/product/migration-guide for migration instructions
The command is terminated due to an error: can't load config: unsupported version of the configuration: "" See https://golangci-lint.run/docs/product/migration-guide for migration instructions

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[gemini-code-assist]

Code Review

This pull request updates the github.com/thebtf/mcp-mux/muxcore dependency from version v0.19.7 to v0.21.6. It also modifies the go.mod and go.sum files to include github.com/Microsoft/go-winio as an indirect dependency and moves golang.org/x/sync to the indirect requirements section. I have no feedback to provide.