feat(configurator): fp.quote.configurator — pricing engine + SO creation

Add the core configurator model that collects part geometry, coating
config, and pricing inputs, calculates a price from matching pricing
rules (scored by specificity), and creates sale orders on confirmation.

- fp.quote.configurator model with mail.thread, sequence numbering
- Stored computed price with full breakdown HTML table
- Estimator override price support
- Auto-population from part catalog and coating config onchanges
- Surface area normalization (sq in/ft/cm/m)
- Specificity-scored rule matching (coating > substrate > cert level)
- action_create_quotation creates SO with FP-SERVICE product
- Form/list/search views with statusbar and chatter
- ACL: operator (read), estimator (read/write/create), manager (full)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

fusion-plating/fusion_plating_configurator/models/__init__.py

@@ -8,4 +8,5 @@ from . import fp_part_catalog
 from . import fp_coating_config
 from . import fp_pricing_complexity_surcharge
 from . import fp_pricing_rule
+from . import fp_quote_configurator
 from . import sale_order