Implement Phase 2: Recipe & Supplier wizard modals (JTBD-driven UX)

Following Jobs-To-Be-Done analysis, break down complex forms into multi-step wizards to reduce cognitive load for non-technical bakery owners.

**Core Infrastructure:**
- Add reusable WizardModal component with progress tracking, validation, and navigation
  - Multi-step progress bar with clickable previous steps
  - Per-step validation with clear error messaging
  - Back/Next/Complete navigation with loading states
  - Optional step skipping support
  - Responsive modal design (sm/md/lg/xl/2xl sizes)

**Recipe Wizard (4 steps):**
- Step 1 (Product): Name, category, finished product, cuisine type, difficulty, description
- Step 2 (Ingredients): Dynamic ingredient list with add/remove, quantities, units, optional flags
- Step 3 (Production): Times (prep/cook/rest), yield, batch sizes, temperature, humidity, special flags
- Step 4 (Review): Instructions, storage, nutritional info, allergens, final summary

**Supplier Wizard (3 steps):**
- Step 1 (Basic): Name, type, status, contact person, email, phone, tax ID, registration
- Step 2 (Delivery): Payment terms, lead time, minimum order, delivery schedule, address
- Step 3 (Review): Certifications, sustainability practices, notes, summary

**Benefits:**
- Reduces form overwhelm from 8 sections to 4 sequential steps (recipes) and 3 steps (suppliers)
- Clear progress indication and next actions
- Validation feedback per step instead of at end
- Summary review before final submission
- Matches mental model of "configure then review" workflow

Files:
- WizardModal: Reusable wizard infrastructure
- RecipeWizard: 4-step recipe creation (Product → Ingredients → Production → Review)
- SupplierWizard: 3-step supplier creation (Basic → Delivery → Review)

Related to Phase 1 (ConfigurationProgressWidget) for post-onboarding guidance.

frontend/src/components/domain/recipes/RecipeWizard/index.ts

@@ -0,0 +1,5 @@
+export { RecipeWizardModal } from './RecipeWizardModal';
+export { RecipeProductStep } from './RecipeProductStep';
+export { RecipeIngredientsStep } from './RecipeIngredientsStep';
+export { RecipeProductionStep } from './RecipeProductionStep';
+export { RecipeReviewStep } from './RecipeReviewStep';