WIP: Save agent roles integration work before CHORUS rebrand

- Agent roles and coordination features
- Chat API integration testing
- New configuration and workspace management

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

vendor/github.com/raulk/go-watchdog/watchdog_other.go

@@ -0,0 +1,13 @@
+// +build !linux
+
+package watchdog
+
+import (
+	"fmt"
+	"time"
+)
+
+// CgroupDriven is only available in Linux. This method will error.
+func CgroupDriven(frequency time.Duration, policyCtor PolicyCtor) (err error, stopFn func()) {
+	return fmt.Errorf("cgroups-driven watchdog: %w", ErrNotSupported), nil
+}