Set Planner

- **New: Architecture section** in the equipment list panel (Walls, Doors, Windows) — walls that fully enclose a space are automatically grouped into a single **Zone N** entry; everything else keeps its own row. Drag-reorder works here too — moving a Zone moves every wall in that room together. - **New: per-section show/hide** — each equipment list section now has an eye icon that hides every item in that group on the canvas and in JPG export (without deleting them), and makes them unselectable until shown again. - **New: Others section** — Keyboard+Mouse, Helicopter, Light Aircraft, Trusses, and every geometric shape are now listed, instead of being placeable but invisible in the panel. Tablet now appears under Monitors. - **Equipment list panel:** sections reordered (Architecture, Cameras, Special, Monitors, Lights, Actors, Others), and the rig section (Jib/Dolly/Rail/Drone) renamed **Other** → **Special**, in both the panel and the PDF export. - **Text tool:** the Font picker actually works now — 8 real bundled fonts replace the old OS font name list, which rarely did anything (and never on the web). - **Import Image / Import SVG:** newly imported files now appear centered in the current view, instead of a fixed spot that could land off-screen. - **Bottom toolbar:** the trash icon's short tap now deletes just the selected shape (or offers Clear all if nothing's selected); long-press always offers Clear all. - **Save as JPG / Save as PDF:** exported files now carry "Set Planner" and setplanner.pro in their metadata. - **Settings → Export → JPG Export:** new **Render Grid** switch to include reference grid lines in the exported file (off by default). - **Fixed:** double-clicking a .spj file to open it no longer loads an empty canvas on macOS or Windows. - **Settings → About:** added a short promo description, plus (web) a link to the App Store.