fix: default tqfp44 to the 0.8mm-pitch / 0.55mm-pad family

[Furox-Art]

/claim #792

Problem

tqfp44 shared the 0.5mm-pitch / 0.30mm-pad defaults with tqfp48/64/100. TQFP-44 is standardized as a 10x10mm body on 0.8mm pitch with 0.55mm-wide leads (JEDEC MS-026 BBA; KiCad TQFP-44_10x10mm_P0.8mm = 0.8mm pitch, 1.475 × 0.55mm pads — exactly the values footprinter already emits for its sibling tqfp32).

Output on main matches no real TQFP-44: pads 0.5mm apart and too narrow to sit under the leads.

Fix

Move case 44 from the 0.5mm/0.3mm group into the tqfp32 family in both the pitch and pad-width default switches in src/fn/tqfp.ts. Explicit p/pw overrides keep winning. tqfp48/64/100/144 defaults are untouched.

Tests (4 new, snapshot-free, deterministic)

Check	main	this PR
tqfp44 pitch	0.5mm	0.8mm (11 centers/side on the 0.8mm grid, 8mm span)
tqfp44 pad size	1.475 × 0.30	1.475 × 0.55 — identical to tqfp32
explicit p("0.5mm").pw("0.3mm")	✓	✓ still honored
tqfp48/64/100 defaults	0.5mm / 0.3mm	unchanged (asserted)

Snapshots

The affected tqfp44_w10.snap.svg was regenerated on ubuntu-latest CI (temporary workflow_dispatch helper, removed before opening this PR). Note: tqfp64/tqfp100 snapshot tests fail on Windows even on clean main (font rendering); this PR does not touch them and CI on Ubuntu confirms they pass.

Relation to #829

#829 (open since Aug 25) bundles fixes for five unrelated issues (#786/#788/#789/#790/#792) in one PR — including this change. This PR is scoped to #792 only, adds pitch/pad regression tests #829 does not have, and keeps #829's other fixes independently reviewable.