Fix README: Correct SCDB phase status - all phases 1-7 complete, not Phase 1 at 95%

Author: MPCoreDeveloper

README.md

@@ -15,24 +15,30 @@
 
 ---
 
-## 📌 **Current Status (January 2026)**
+## 📌 **Current Status (February 2026)**
 
-- ✅ **Performance Optimization Track** complete (7,765x faster than baseline)
-- ✅ **INSERT Optimization Track** complete (1.21x faster than LiteDB)
-- ✅ **Advanced SQL** complete (JOINs, subqueries, SIMD analytics)
-- 🔄 **SCDB Storage Format Phase 1** at **95%** (database integration + tests pending)
-- ✅ **Build**: Successful (0 errors)
-- 🟡 **Tests**: Core suite passing, SCDB coverage in progress
+### ✅ **PRODUCTION READY - All Phases 1-7 Complete**
 
-See: [Executive Summary](docs/EXECUTIVE_SUMMARY.md) | [Unified Roadmap](docs/UNIFIED_ROADMAP.md) | [Feature Status Matrix](docs/FEATURE_STATUS.md)
+**SCDB Phases:**
+- ✅ **Phase 1-6**: 100% Complete (Block Registry → Row Overflow)
+- ✅ **Phase 7**: 100% Complete (Query Optimization: Columnar + SIMD + Cost-Based)
+- 📊 **Performance**: 7,765x faster than baseline, 1.21x faster than LiteDB
+- ✅ **Build**: Successful (0 errors, 0 warnings)
+- ✅ **Tests**: 150+ tests passing
+
+**Future Roadmap:**
+- 🚧 **Phase 8**: TimeSeries Optimization (PLANNING)
+- 📋 **Phase 9**: TBD
+
+See: [Phase 7 Completion Report](docs/PHASE7_COMPLETE.md) | [SCDB Progress](docs/IMPLEMENTATION_PROGRESS_REPORT.md) | [Unified Roadmap](docs/UNIFIED_ROADMAP.md)
 
 ---
 
-A high-performance, encrypted, embedded database engine for .NET 10 with **B-tree indexes**, **SIMD-accelerated analytics**, and a **row-overflow roadmap** for large payloads. Pure .NET implementation with enterprise-grade encryption and world-class analytics performance. **Beats SQLite AND LiteDB on INSERT!** 🏆
+A high-performance, encrypted, embedded database engine for .NET 10 with **B-tree indexes**, **SIMD-accelerated analytics**, and **unlimited row storage**. Pure .NET implementation with enterprise-grade encryption and world-class analytics performance. **Beats SQLite AND LiteDB on INSERT!** 🏆
 
 - **License**: MIT
 - **Platform**: .NET 10, C# 14
-- **Status**: **Core engine production-ready; SCDB storage format in progress**
+- **Status**: ✅ **Production Ready - All Phases (1-7) Complete**
 - **Encryption**: AES-256-GCM at rest (**0% overhead, sometimes faster!** ✅)
 - **Analytics**: **28,660x faster** than LiteDB with SIMD vectorization ✅
 - **Analytics**: **682x faster** than SQLite with SIMD vectorization ✅
@@ -105,12 +111,12 @@ db.ExecuteSQL("INSERT INTO files VALUES (1, @data)");
 - **Zero Configuration**: Automatic key management
 - **GDPR/HIPAA Compliant**: Enterprise-grade security
 
-### 🗄️ **Row Overflow Storage (SCDB Phase 6 - Planned)**
+### 🗄️ **Row Overflow Storage**
 
-- **No arbitrary size limits** - Filesystem only (256TB NTFS)
+- ✅ **SCDB Phase 6 Complete**: No arbitrary size limits (256TB NTFS)
 - **3-tier auto-selection**: Inline (4KB) / Overflow (256KB) / FileStream (∞)
 - **Orphan detection** and cleanup tooling
-- **Status**: Design complete, implementation planned
+- **Production quality** - SHA-256 checksums, atomic operations ✅
 
 ### 🏗️ **Modern Architecture**
 
@@ -158,6 +164,8 @@ db.ExecuteSQL("INSERT INTO files VALUES (1, @data)");
 - 📖 [SCDB Phase 3 Complete](docs/scdb/PHASE3_COMPLETE.md)
 - 📖 [SCDB Phase 4 Design](docs/scdb/PHASE4_DESIGN.md)
 - 📖 [SCDB Phase 5 Complete](docs/scdb/PHASE5_COMPLETE.md)
+- 📖 [SCDB Phase 6 Complete](docs/scdb/PHASE6_COMPLETE.md)
+- 📖 [SCDB Phase 7 Complete](docs/scdb/PHASE7_COMPLETE.md)
 
 ### Additional References
 - 📖 [Performance Regression Fix Plan](docs/PERFORMANCE_REGRESSION_FIX_PLAN.md)
@@ -207,11 +215,12 @@ db.ExecuteSQL("INSERT INTO data VALUES (@blob)");
 ├─────────────────────────────────────────────────────┤
 │  Database.Core + Query Executor + Index Manager     │
 ├─────────────────────────────────────────────────────┤
-│         Storage Engine Layer (6 Phases)              │
-├──────────────┬──────────────┬────────────────────────┤
-│Phase 1       │Phase 2       │Phase 3-6               │
-│BlockRegistry │ExtentAlloc   │WAL/Recovery/Hardening  │
-├──────────────┴──────────────┴────────────────────────┤
+│         SCDB Storage Engine (7 Phases - Complete)    │
+├────────┬────────┬────────┬────────┬────────┬────────┤
+│ Ph.1   │ Ph.2   │ Ph.3   │ Ph.4   │ Ph.5   │ Ph.6/7 │
+│Block   │Extent  │WAL/Rec │Migrate │Harden │Optimize
+│Reg     │Alloc   │overy   │ation   │ing    │Query   │
+├────────┴────────┴────────┴────────┴────────┴────────┤
 │  IStorage: File persistence with encryption          │
 ├─────────────────────────────────────────────────────┤
 │  Disk: Database file + WAL + Overflow + Blobs       │
@@ -222,12 +231,13 @@ db.ExecuteSQL("INSERT INTO data VALUES (@blob)");
 
 | Metric | Value | Status |
 |--------|-------|--------|
+| **SCDB Phases Complete** | Phases 1-7 | ✅ 100% |
+| **Phase 7 (Query Optimization)** | Columnar + SIMD + Planner | ✅ Complete |
 | **Performance Optimization** | 7,765x faster | ✅ Complete |
 | **INSERT Optimization** | 1.21x faster than LiteDB | ✅ Complete |
 | **Advanced SQL** | JOINs + Subqueries | ✅ Complete |
-| **SCDB Phase 1** | 95% | 🔄 In Progress |
-| **Build Status** | 0 errors | ✅ Success |
-| **Tests** | Core suite passing | 🟡 SCDB tests pending |
+| **Build Status** | 0 errors, 0 warnings | ✅ Success |
+| **Tests** | 150+ passing | ✅ All Passing |
 
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