By Andrew Mills and Nidal al-Mughrabi DOHA/CAIRO (Reuters) – Negotiators will meet in Doha on Tuesday seeking to finalise details of a plan to end the war in Gaza, after U.S. President Joe Biden said a ceasefire and hostage release deal he has championed was on “the brink” of coming to fruition. Mediators gave Israel and Hamas a final draft of a deal on Monday, an official briefed on the