chore(configurator): bump to 19.0.6.0.0 for multi-line direct order wizard

Task A8. Closes Phase A of the direct-order rewrite.

Smoke-tested on odoo-entech: wizard accepts 3 lines (qty 65, total
\$3,025 + tax -> \$3,418.25), creates SO S00066 in state=sale with all
header fields (customer job #, three deadlines, bill/ship addresses)
and per-line fields (part, coating, qty, price) populated correctly.

Phase A complete. Phase B (blanket flag, block partial, WO grouping,
add-from-SO, missing-info banner polish) and Phase C (to-node picker,
quote link, push-defaults) outlined in the plan doc; Phases D/E/F
(SO detail, SO list, quotes list) are separate tracks.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_plating/fusion_plating_configurator/__manifest__.py

@@ -5,7 +5,7 @@
 
 {
     'name': 'Fusion Plating — Configurator',
-    'version': '19.0.5.2.0',
+    'version': '19.0.6.0.0',
     'category': 'Manufacturing/Plating',
     'summary': 'Quotation configurator with part catalog, coating configs, and formula-based pricing engine.',
     'description': """