Release of technology secretary's use of ChatGPT will have Whitehall sweating / UK growth push held back by poor Whitehall co-ordination, watchdog finds / Top London academies face mass claims of emotional harm as Whitehall acts on crisis / Labour's policy on non-doms mostly copied from Conservatives, say Whitehall sources / Labour consider biggest Whitehall shake-up in decades as Keir Starmer strives to deliver key manifesto pledges / British troops delivering aid in Gaza 'an option', according to Whitehall sources / Starmer's team coached for government over dinners with top Whitehall figures