docs: Add comprehensive documentation for getting started, testing, building, and architecture

- Introduced a new "Getting Started" guide to help users set up and use the YAZE software effectively.
- Added detailed "Testing Guide" outlining the testing framework and best practices for contributors.
- Created "Build Instructions" for macOS, Linux, and Windows, including environment verification and quick start with CMake presets.
- Documented the architecture and networking aspects of YAZE, focusing on service-oriented design and gRPC integration.
- Updated the index to reflect new documentation structure and improve navigation.

docs/index.md

@@ -2,30 +2,39 @@
 
 Welcome to the official documentation for yaze, a comprehensive ROM editor for The Legend of Zelda: A Link to the Past.
 
-## Core Guides
+## A: Getting Started & Testing
+- [A1: Getting Started](A1-getting-started.md) - Basic setup and usage.
+- [A2: Testing Guide](A1-testing-guide.md) - The testing framework and best practices.
 
-- [Getting Started](01-getting-started.md) - Basic setup and usage.
-- [Build Instructions](02-build-instructions.md) - How to build yaze on Windows, macOS, and Linux.
-- [z3ed CLI Guide](z3ed/README.md) - The AI-powered command-line interface.
+## B: Build & Platform
+- [B1: Build Instructions](B1-build-instructions.md) - How to build yaze on Windows, macOS, and Linux.
+- [B2: Platform Compatibility](B2-platform-compatibility.md) - Cross-platform support details.
+- [B3: Build Presets](B3-build-presets.md) - A guide to the CMake preset system.
+- [B4: Release Workflows](B4-release-workflows.md) - GitHub Actions release pipeline documentation.
+- [B5: Architecture and Networking](B5-architecture-and-networking.md) - System architecture, gRPC, and networking.
 
-## Development & API
+## C: `z3ed` CLI
+- [C1: `z3ed` Agent Guide](C1-z3ed-agent-guide.md) - The AI-powered command-line interface.
 
-- [Development Guide](development_guide.md) - Core architectural patterns, UI systems, and best practices.
-- [GUI Testing Guide](gui_testing.md) - The end-to-end GUI testing framework.
-- [API Reference](04-api-reference.md) - C/C++ API documentation for extensions.
-- [Testing Guide](A1-testing-guide.md) - The testing framework and best practices.
-- [Assembly Style Guide](E1-asm-style-guide.md) - 65816 assembly coding standards.
-- [Build Presets](B3-build-presets.md) - A guide to the CMake preset system.
-- [Release Workflows](B4-release-workflows.md) - GitHub Actions release pipeline documentation.
+## E: Development & API
+- [E1: Assembly Style Guide](E1-asm-style-guide.md) - 65816 assembly coding standards.
+- [E2: Development Guide](E2-development-guide.md) - Core architectural patterns, UI systems, and best practices.
+- [E3: API Reference](E3-api-reference.md) - C/C++ API documentation for extensions.
 
-## Technical Documentation
+## F: Technical Documentation
+- [F1: Dungeon Editor Guide](F1-dungeon-editor-guide.md) - A master guide to the dungeon editing system.
+- [F2: Tile16 Editor Palette System](F2-tile16-editor-palette-system.md) - Design of the palette system.
+- [F3: Overworld Loading](F3-overworld-loading.md) - How vanilla and ZSCustomOverworld maps are loaded.
 
-- [Dungeon Editor Guide](D2-dungeon-editor-guide.md) - A master guide to the dungeon editing system.
-- [Canvas Guide](G2-canvas-guide.md) - The core GUI drawing and interaction system.
-- [Overworld Loading](F1-overworld-loading.md) - How vanilla and ZSCustomOverworld maps are loaded.
-- [Platform Compatibility](B2-platform-compatibility.md) - Cross-platform support details.
-- [Tile16 Editor Palette System](E7-tile16-editor-palette-system.md) - Design of the palette system.
+## G: GUI Guides
+- [G1: Canvas System and Automation](G1-canvas-guide.md) - The core GUI drawing and interaction system.
+
+## H: Project Info
+- [H1: Changelog](H1-changelog.md)
+
+## I: Roadmap
+- [I1: Roadmap](I1-roadmap.md)
 
 ---
 
-*Last updated: October 2025 - Version 0.3.2*
+*Last updated: October 2025 - Version 0.3.2*