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

internal/agent/react_parser.go

@@ -0,0 +1,31 @@
+package agent
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+func parseDecision(raw string) (reactDecision, error) {
+	raw = normalizeJSON(raw)
+	start := strings.Index(raw, "{")
+	end := strings.LastIndex(raw, "}")
+	if start < 0 || end < start {
+		return reactDecision{}, fmt.Errorf("no json object found")
+	}
+	raw = raw[start : end+1]
+
+	var out reactDecision
+	if err := json.Unmarshal([]byte(raw), &out); err != nil {
+		return reactDecision{}, err
+	}
+	return out, nil
+}
+
+func normalizeJSON(raw string) string {
+	raw = strings.TrimSpace(raw)
+	raw = strings.TrimPrefix(raw, "```json")
+	raw = strings.TrimPrefix(raw, "```")
+	raw = strings.TrimSuffix(raw, "```")
+	return strings.TrimSpace(raw)
+}