v1.16.3 — field-test fixes (pinch-valve, wall-organizer, knitting-machine)

Ships extension + @shapeitup/mcp-server 1.16.3 in lockstep. All tests green; lint + build clean.

1.16.3 — knitting-machine field test

• Dedicated hint for drawText-without-font failure (no more false standards/divide-by-zero trail).
• Bare local imports now resolve to a sibling .shape.ts.
• Child material no longer leaks onto a multi-file assembly (correct BOM mass).

1.16.2 — wall-organizer (pegboard)

• Fix printability mis-flag from generic part names; "extends below z=0" false positive on wall-mount parts; workspace-mismatch warning now fires for fresh dirs.
• Deduplicate identical geometry-warning lines.
• New mounts stdlib namespace — positive keyhole/peg studs (inverse of holes.keyhole).

1.16.1 — pinch-valve

• Declaring a material auto-upgrades per-part measurement to "full" so mass/volume render.
• check_collisions appends an acceptedPairs/pressFitThreshold tip on real collisions.
• SKILL.md surfaces per-part material/qty + drawRoundedRectangle corner note.

Also adds the cosmetic stdlib namespace. Includes an OS-agnostic fix to the workspace-mismatch absolute-path check (CI portability).