loobric-server 0.12.0 — wider cut, honest silhouettes

Changed

• thermal-4x6-wide is now 57×32mm, 4-up (was 50×25mm, 6-up): the single column matches the thermal-57x32 roll footprint, so spec labels on it get the roomy layout — full DIA/FL/LOC/OAL table and the silhouette — instead of the compact one-liner.
• Silhouette shape families — probe (stylus + ball tip), slittingsaw (thin blade on an arbor), dovetail (reverse taper), and bullnose (rounded corners) now draw honest profiles instead of the generic endmill rectangle; countersink, engraver, and tap join the pointed family. Probes and saws skip flute-line hatching, and their missing shank-diameter/LOC values get shape-appropriate defaults.