GUI: Footer.svelte gets a small inline "Rust" pill next to the
copyright line (red bg #b7411a, white 11px, rounded). Now obvious
at-a-glance which fork's UI you're looking at when both python and
rust are open side-by-side. Python edition mirrors with a console
banner.
Launcher: run.bat at the repo root loads dev.env (skipping #-comments
and blank lines), then `start ""` spawns target\release\jarvis-gui.exe.
The new Desktop shortcut "Jarvis (Rust).lnk" points at this batch
file with resources\icons\icon.ico as its icon. WindowStyle=7 means
the cmd host stays minimized — only the GUI window pops up.
If the user hasn't built yet, the bat prints the cargo build command
and pauses instead of silently doing nothing.
