Smart Telescope Planner

Version 18 build 1 is a major smart-telescope planning update with requested timing and workflow fixes: - Corrects checked-target planner timing so the first target starts at initialization, each next target starts at its first visible time, and the previous target ends there. - Handles after-midnight cascades correctly for observing windows such as 22:34 to 04:47. - Keeps the final target only through the earlier of its visible card end or the capture-window end, leaving unused time open for another target. - Tightens target availability checks so a target is rejected if any minute of the proposed segment falls outside the viewing window. - Keeps checked targets visible while switching object types, making mixed nebula, cluster, galaxy, and other plans easier to build. - Adds planner Fill Gaps suggestions for open windows between scheduled targets. - Adds Quick Ref PDF or text export for fast field use at the telescope. - Pads low-altitude ALT report values to two digits in plan, PDF, print, share, and Quick Ref output. - Adds telescope-specific Home timing, including shared Vaonis smart telescope timing based on the calibrated Vespera II Singularity field window. - Adds optional Weather Underground PWS current observations while Open-Meteo continues to fill unsupported cloud and forecast rows. - Resolves GPS-captured observing locations into address fields when iOS returns a placemark. - Warns before target database downloads begin because the dataset may be large. - Improves Clear Sky filtering across multiple azimuth/altitude zones. - Removes Hestia from smart telescope setup because it is a phone accessory, not a true smart telescope. - Updates About, Help, manuals, website materials, release screenshots, and the iOS logic-flow diagram. Also give the macOS version a look: https://bigskyastro.com/macos/user-manual.html