Reorganize testing infrastructure and fix Oracle cursor loop syntax

Major changes:
- Fix cursor loop syntax in 04_import_comenzi.sql using BULK COLLECT pattern
- Remove obsolete test scripts (apply_fix.py, check_*.py, debug_functions.py, test_*.py)
- Add comprehensive README.md files for api/ and api/tests/ directories
- Keep only essential testing scripts (final_validation.py, test_syntax.py)
- Update PRD.md with latest project status

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

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

api/README.md

@@ -0,0 +1,41 @@
+# API Directory - Phase 1 Complete
+
+## Core Files
+
+### 🎛️ `admin.py`
+**Purpose:** Flask web admin interface pentru mapări SKU
+- Oracle connection pool management
+- CRUD operations pentru ARTICOLE_TERTI
+- Web interface pentru configurare mapări
+- **Port:** 5000 (configurable)
+
+### 🧪 `tests/`
+**Purpose:** Directory cu toate testele și utilitățile validation
+- `final_validation.py` - Ultimate P1-004 validation script
+- `test_final_success.py` - Complete end-to-end test
+- `test_syntax.py` - Package compilation checker
+- `check_packages.py` - Package status utility  
+- `check_table_structure.py` - Schema validation utility
+- `README.md` - Documentation pentru toate testele
+
+## Configuration Files
+
+### 📁 `database-scripts/`
+- `01_create_table.sql` - ARTICOLE_TERTI table
+- `02_import_parteneri.sql` - PACK_IMPORT_PARTENERI package  
+- `04_import_comenzi.sql` - PACK_IMPORT_COMENZI package
+
+### 🐳 `docker-compose.yaml`
+Oracle container orchestration
+
+### 🔧 `.env`
+Environment variables pentru MARIUSM_AUTO schema
+
+### 📋 `requirements.txt` 
+Python dependencies (oracledb, flask, etc.)
+
+---
+
+**Phase 1 Status:** ✅ 100% COMPLETE
+**Ready for:** Phase 2 VFP Integration
+**Cleanup Date:** 10 septembrie 2025, 12:57