feat: add workspace-isolated toolhost runtime and capability-gap skill loop

internal/logger/trace.go

@@ -0,0 +1,32 @@
+package logger
+
+import (
+	"context"
+	"fmt"
+	"math/rand"
+	"time"
+)
+
+type traceIDKey struct{}
+
+func NewTraceID() string {
+	now := time.Now().UTC().UnixNano()
+	randPart := rand.Int63()
+	return fmt.Sprintf("tr-%x-%x", now, randPart)
+}
+
+func WithTraceID(ctx context.Context, traceID string) context.Context {
+	if traceID == "" {
+		return ctx
+	}
+	return context.WithValue(ctx, traceIDKey{}, traceID)
+}
+
+func TraceIDFromContext(ctx context.Context) string {
+	if ctx == nil {
+		return ""
+	}
+	v := ctx.Value(traceIDKey{})
+	s, _ := v.(string)
+	return s
+}