chore: update project version to 0.7.0-pre and release information

Author: ProgrammerKR

CHANGELOG.md

@@ -327,6 +327,6 @@ This project is licensed under the MIT License.
 
 ---
 
-**Current Version**: 0.5.1  
-**Last Updated**: December 31, 2025  
-**Next Release**: 0.6.0 (Early 2026)
+**Current Version**: 0.7.0-pre
+**Last Updated**: January 04, 2026
+**Next Release**: 0.7.0 (Q1 2026)

Doxyfile

@@ -2,7 +2,7 @@
 # Generated documentation will be in build/docs/
 
 PROJECT_NAME           = ProXPL
-PROJECT_NUMBER         = 0.6.0
+PROJECT_NUMBER         = 0.7.0-pre
 PROJECT_BRIEF          = "A Modern Programming Language Compiler"
 PROJECT_LOGO           = 
 

README.md

@@ -8,7 +8,7 @@
 
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![ProXPL CI](https://github.com/ProgrammerKR/ProXPL/actions/workflows/build.yml/badge.svg)](https://github.com/ProgrammerKR/ProXPL/actions/workflows/build.yml)
-[![Version](https://img.shields.io/badge/version-0.6.0-blue.svg)](https://github.com/ProgrammerKR/ProXPL/releases)
+[![Version](https://img.shields.io/badge/version-0.7.0--pre-blue.svg)](https://github.com/ProgrammerKR/ProXPL/releases)
 [![Platform](https://img.shields.io/badge/platform-win%20%7C%20linux%20%7C%20macos-lightgrey.svg)]()
 
 **Clean Syntax • Static Typing • Stack-Based VM • C-Level Performance**
@@ -532,9 +532,9 @@ See [BENCHMARKS.md](BENCHMARKS.md) for detailed performance comparisons.
 
 We warmly welcome contribut## 🛣️ Roadmap
 
-### v0.6.0 (Current - January 2026)
+### v0.7.0-pre (Current - January 2026)
 **Status**: Pre-release Candidate
-- ✅ 0.6.0 Features Complete
+- ✅ 0.7.0 Features Complete
 - ✅ Testing Phase with Pre-release builds
 - ✅ Stack-based VM with bytecode execution
 - ✅ LLVM backend for AOT native compilation