DiveCore: Dive Computer

- No-fly time now follows the DAN/UHMS guideline exactly: 12 h after a single no-decompression dive, 18 h after multiple dives per day or multi-day diving, 24 h after a decompression dive — fixes repetitive-dive no-fly times that were shown far longer than the guideline - Rebuilt Dive Planner on the PADI Recreational Dive Planner (RDP): no-deco limits and pressure groups, repetitive dives (surface interval → residual nitrogen → adjusted no-deco limit), nitrox via Equivalent Air Depth, and RDP safety-stop / minimum-surface-interval / emergency-decompression rules — plan with the same numbers you were trained on - On Apple Watch, a first-launch prompt lets you allow Health, Motion & Fitness, and Location ahead of time — no more permission sheets appearing under Water Lock during a dive - The depth graph in iPhone dive details now shows the surface (0 m) at the top and deeper below, matching the Watch and the share card; the water-temperature line now lines up with its scale - Planner sliders: scrolling that starts on a slider no longer jumps the value, and a tap sets the value directly