PARIS—The European Union said on Monday it wanted to agree by the end of July the legal framework for a sanctions regime targeting Lebanese leaders, but cautioned that the measure would not be immediately implemented. Led by France, the EU is seeking to ramp up pressure on Lebanon’s squabbling politicians after 11 months of a crisis that has left Lebanon facing financial collapse, hyperinflation, electricity blackouts, and fuel and food shortages. The move is part of broader international efforts to force a stable government capable of carrying out crucial reforms to emerge from nearly a year of political chaos and economic collapse following a blast that ravaged Beirut port. “I can say that the objective is to complete this by the end of the month. I am not talking about the implementation of the regime, just the building of the regime according to sound legal basis,” EU foreign policy chief …