Lebanon ceasefire fragility with new casualties and Netanyahu vow to increase strikes

45-day extension holds but cross-border drone/sniper fighting persists; Hezbollah FPV drones destroy Merkava tank; additional Israeli strike and tunnel destruction reported. Missile strike hits ambulance in southern Lebanon, killing paramedics. Netanyahu vows to increase Lebanon strikes despite ceasefire. New: Major escalation with 12 killed in Bekaa Valley, Netanyahu authorizing more intensive strikes, US-brokered talks looming.