PathOfBuildingCommunity/PathOfBuilding ? reverse-engineered prompt

Build me an offline build planner for Path of Exile that lets me plan a character, see my damage, defenses, life, mana, energy shield, and how every choice changes the build.

I want a clear interface with a passive tree planner, skill setup, and item setup, plus a side panel that summarizes the character and shows the math behind the numbers. It should let me import a build from a character or from a tree link, paste in items from the game, search uniques, create basic crafted or rare items, and toggle auras, buffs, curses, and support gems on and off.

Please make it feel like a real desktop tool, with build sharing, automatic updates, and solid support for minions and party builds. If you need to look up current Path of Exile details or gem data online, go ahead and do that.