feat(ocr): Add modular store profiles with hot-reload support

## Store Profiles System
- Add ProfileRegistry for CUI-based profile lookup
- Add BaseStoreProfile with generic extraction patterns
- Implement hot-reload via POST /api/data-entry/ocr/profiles/reload

## 12 Store Profiles
- LIDL: Multi-rate TVA (A, B, C, D codes)
- OMV, SOCAR: B2B with client CUI, YYYY.MM.DD dates
- BRICK, DEDEMAN: Standard TVA, e-factura support
- KINETERRA, BEST PRINT: Non-VAT payers (returns [])
- STEPOUT MARKET: TVA 5% (books/reduced rate)
- UNLIMITED KEYS: NUMERAR payment detection
- GAMA INK, ELECTROBERING, PICTUS VELUM: Standard TVA

## Flexible TVA Patterns
- All patterns use (\d{1,2})% to accept any rate
- Supports historical (19%, 9%, 5%) and current (21%, 11%)

## Payment Methods Fix
- Fixed base.py to support multiple payments of same type
- Changed deduplication from method-only to (method, amount) tuple
- Returns separate entries for split payments

## Tools
- Add generate_store_profile.py for automatic profile generation
- Analyzes PDFs via OCR API and detects patterns

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.claude/rules/claude-learn-domains.md

@@ -0,0 +1,83 @@
+# Claude Learn Domains Configuration
+
+**Last updated**: 2026-01-06
+
+This file defines available knowledge domains and their file path patterns.
+
+---
+
+## Domains
+
+### frontend
+**File**: `claude-learn-frontend.md`
+**Patterns**:
+- `src/**/*.vue`
+- `src/**/*.js`
+- `src/**/*.ts`
+- `src/**/*.css`
+- `vite.config.*`
+- `package.json`
+
+---
+
+### backend
+**File**: `claude-learn-backend.md`
+**Patterns**:
+- `backend/**/*.py`
+- `backend/modules/**/*`
+- `requirements.txt`
+
+---
+
+### database
+**File**: `claude-learn-database.md`
+**Patterns**:
+- `**/*.sql`
+- `**/models.py`
+- `**/schemas.py`
+- `backend/**/db/**/*`
+
+---
+
+### testing
+**File**: `claude-learn-testing.md`
+**Patterns**:
+- `tests/**/*`
+- `**/*.test.*`
+- `**/*.spec.*`
+- `pytest.ini`
+- `vitest.config.*`
+
+---
+
+### deployment
+**File**: `claude-learn-deployment.md`
+**Patterns**:
+- `deployment/**/*`
+- `public/web.config`
+- `Dockerfile*`
+- `docker-compose*.yml`
+- `*.sh`
+- `ansible/**/*`
+
+---
+
+### global
+**File**: `claude-learn-global.md`
+**Patterns**:
+- `*` (catch-all for cross-cutting concerns)
+
+---
+
+## Statistics
+
+| Domain | Patterns | Gotchas | Last Updated |
+|--------|----------|---------|--------------|
+| frontend | 8 | 10 | 2026-01-06 |
+| deployment | 1 | 0 | 2026-01-06 |
+| global | 0 | 1 | 2026-01-06 |
+| backend | 2 | 0 | 2026-01-06 |
+| database | 0 | 0 | - |
+| testing | 0 | 0 | - |
+
+**Total**: 11 patterns, 11 gotchas across 4 domains