Function createApprovalRequest

Returns {
    approval: {
        actionClass: ActionClass;
        agentId: string;
        approvalId: string;
        boundHashes: {
            intentHash: string;
            policyHash: string;
            toolsHash: string;
            workOrderHash?: string | null;
        };
        createdTs: number;
        decision?: "DENIED"
        | "APPROVED"
        | null;
        decisionBy?: "owner" | null;
        decisionReceiptId?: string | null;
        decisionTs?: number | null;
        effectiveMode: ExecutionMode;
        expiresTs: number;
        intentId: string;
        reason?: string | null;
        requestedMode: ExecutionMode;
        riskTier: "low" | "high" | "critical" | "medium";
        status: "EXPIRED" | "DENIED" | "PENDING" | "CONSUMED" | "APPROVED";
        toolName: string;
        v: 1;
        workOrderId?: string | null;
    };
    filePath: string;
    sigPath: string;
}