feat: mejorar UI con Vuetify 3, POS tipo venta real, dashboard

openspec/changes/improve-ui-ux-pos/design.md

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+# Design: improve-ui-ux-pos
+
+## UI Library
+Use Vuetify 3 with Material Design 3, responsive for tablet.
+
+## POS Flow
+- Product grid by category/producer
+- Cart with quantities
+- Payment method selection
+- Quick sale completion
+
+## UX Improvements
+- Dashboard with day summary
+- Guided setup on first run
+- Data tables for all entities
+- Better forms with validation
+- Consistent theming
+
+## Testing
+Playwright tests for web UI covering realistic scenarios

openspec/changes/improve-ui-ux-pos/proposal.md

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+# Proposal: improve-ui-ux-pos
+
+## Why
+Current UI is too simple/minimalist, lacks styling, and the POS flow (create sale) is not intuitive. Users need a realistic POS experience with:
+- Proper product catalog by producer
+- Easy product selection for sales (like buying 3 lbs coffee, 2 condiments)
+- Clear day closure/cash reconciliation flow
+- Better UX with a UI component library
+- Seed data/onboarding to create producers/products easily
+
+## What Changes
+- Integrate Vuetify 3 for professional UI, themes, components
+- Redesign POS/sales screen like real POS systems
+- Improve product/producer management with better forms
+- Add quick start wizard (setup producers/products)
+- Improve cash closure flow with detailed breakdown
+- Add realistic test scenarios
+- Enhance all views with proper layouts
+
+## Impact
+- apps/toldo-app: UI overhaul with Vuetify
+- Better UX for tablet use
+- More realistic workflows
+- Maintain offline-first, Capacitor compatible

openspec/changes/improve-ui-ux-pos/tasks.md

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+# Tasks
+
+## 1. Research & Setup
+- [ ] 1.1 Research POS UI patterns
+- [ ] 1.2 Install Vuetify 3, mdi icons
+- [ ] 1.3 Configure Vuetify theme
+
+## 2. UI Overhaul
+- [ ] 2.1 Redesign Layout with Vuetify (app bar, navigation)
+- [ ] 2.2 Redesign Dashboard with day summary
+- [ ] 2.3 Redesign Inventory/Producers/Products with data tables
+- [ ] 2.4 Redesign POS Sales screen (product grid + cart)
+- [ ] 2.5 Redesign Expenses, Adjustments
+- [ ] 2.6 Redesign Cash Closure with detailed breakdown
+- [ ] 2.7 Redesign Reports
+- [ ] 2.8 Redesign Export/Import
+
+## 3. UX Features
+- [ ] 3.1 Add setup wizard for first run
+- [ ] 3.2 Add quick product creation
+- [ ] 3.3 Improve validation
+
+## 4. Testing
+- [ ] 4.1 Setup Playwright
+- [ ] 4.2 Create realistic test scenarios
+- [ ] 4.3 Test full day flow
+
+## 5. Build & Deploy
+- [ ] 5.1 Build web and APK