refactor(instructions): update references to point to Agent Skills

- Update coding.instructions.md with Agent Skills vs Custom Instructions sections
- Update copilot-instructions.md with new guidelines structure
- Add clear distinction between dynamic skills and always-active instructions
- Include links to all migrated skills

Author: devbyray

.github/copilot-instructions.md

@@ -27,27 +27,35 @@ This repository contains guidelines and best practices for using GitHub Copilot
 ---
 
 
-## 📚 Table of Contents
-
-  - Coding standards ([coding.instructions.md](.github/instructions/coding.instructions.md))
-  - Accessibility ([accessibility.instructions.md](.github/instructions/accessibility.instructions.md))
-  - CSS ([css.instructions.md](.github/instructions/css.instructions.md))
-  - Tailwind CSS ([tailwind.instructions.md](.github/instructions/tailwind.instructions.md))
-  - HTML ([html.instructions.md](.github/instructions/html.instructions.md))
-  - UI guidelines ([ui-guidelines.instructions.md](.github/instructions/ui-guidelines.instructions.md))
-  - Commit messages ([commit.instructions.md](.github/instructions/commit.instructions.md))
-  - Best practices ([best-practices.instructions.md](.github/instructions/best-practices.instructions.md))
-  - Configuration files ([config.instructions.md](.github/instructions/config.instructions.md))
-  - C# standards ([csharp.instructions.md](.github/instructions/csharp.instructions.md))
-  - .NET standards ([dotnet.instructions.md](.github/instructions/dotnet.instructions.md))
-  - JavaScript/TypeScript standards ([javascript-typescript.instructions.md](.github/instructions/javascript-typescript.instructions.md))
-  - Vue standards ([vue.instructions.md](.github/instructions/vue.instructions.md))
-  - Nuxt.js standards ([nuxt.instructions.md](.github/instructions/nuxt.instructions.md))
-  - Markdown standards ([markdown.instructions.md](.github/instructions/markdown.instructions.md))
-  - Project structure ([project-file-structure.instructions.md](.github/instructions/project-file-structure.instructions.md))
-  - Security ([security.instructions.md](.github/instructions/security.instructions.md))
-  - Testing & TDD ([testing.instructions.md](.github/instructions/testing.instructions.md))
-  - Tooling ([tools.instructions.md](.github/instructions/tools.instructions.md))
+## 📚 Guidelines Structure
+
+### 🎯 Agent Skills (Dynamic Loading)
+Language and framework-specific guidelines that load only when relevant:
+
+- **JavaScript/TypeScript** - [javascript-typescript-standards](skills/javascript-typescript-standards/)
+- **Vue.js** - [vue-development](skills/vue-development/)
+- **Nuxt.js** - [nuxt-development](skills/nuxt-development/)
+- **CSS** - [css-standards](skills/css-standards/)
+- **Tailwind CSS** - [tailwind-css](skills/tailwind-css/)
+- **HTML** - [html-standards](skills/html-standards/)
+- **C#** - [csharp-standards](skills/csharp-standards/)
+- **.NET** - [dotnet-development](skills/dotnet-development/)
+- **Markdown** - [markdown-standards](skills/markdown-standards/)
+- **Testing & TDD** - [testing-tdd](skills/testing-tdd/)
+- **Commit Messages** - [commit-conventions](skills/commit-conventions/)
+
+[📖 Learn more about Agent Skills](skills/README.md)
+
+### 🌐 Custom Instructions (Always Active)
+Universal principles that apply to all code:
+
+- **Coding Standards** - [coding.instructions.md](instructions/coding.instructions.md)
+- **Best Practices** - [best-practices.instructions.md](instructions/best-practices.instructions.md)
+- **Security** - [security.instructions.md](instructions/security.instructions.md)
+- **Accessibility** - [accessibility.instructions.md](instructions/accessibility.instructions.md)
+- **UI Guidelines** - [ui-guidelines.instructions.md](instructions/ui-guidelines.instructions.md)
+- **Configuration** - [config.instructions.md](instructions/config.instructions.md)
+- **Project Structure** - [project-file-structure.instructions.md](instructions/project-file-structure.instructions.md)
 
 ---
 

.github/instructions/coding.instructions.md

@@ -15,7 +15,24 @@ applyTo: "**"
 6. Write clear and concise JSDoc/TSDoc comments for functions, components, and modules.
 
 ## Code Guidelines
-- [CSS instructions](./css.instructions.md).
-- [JavaScript/TypeScript instructions](./javascript-typescript.instructions.md).
-- [Markdown instructions](./markdown.instructions.md).
-- [HTML instructions](./html.instructions.md).
+
+**Note**: Most language-specific guidelines have been migrated to Agent Skills for better performance:
+
+### Agent Skills (Dynamic Loading)
+- [JavaScript/TypeScript Standards](../skills/javascript-typescript-standards/) - ES2022, Node.js, async/await
+- [Vue Development](../skills/vue-development/) - Vue 3 Composition API
+- [Nuxt Development](../skills/nuxt-development/) - Nuxt 3, SSR/SSG
+- [CSS Standards](../skills/css-standards/) - CSS organization & best practices
+- [Tailwind CSS](../skills/tailwind-css/) - Tailwind v4+ utility classes
+- [HTML Standards](../skills/html-standards/) - Semantic markup & accessibility
+- [C# Standards](../skills/csharp-standards/) - C# naming & conventions
+- [.NET Development](../skills/dotnet-development/) - .NET architecture & DI
+- [Markdown Standards](../skills/markdown-standards/) - Documentation formatting
+- [Testing & TDD](../skills/testing-tdd/) - TDD workflow & best practices
+- [Commit Conventions](../skills/commit-conventions/) - Conventional Commits
+
+### Custom Instructions (Always Active)
+- [Best Practices](./best-practices.instructions.md) - SOLID, DRY, KISS
+- [Security](./security.instructions.md) - OWASP Top 10
+- [Accessibility](./accessibility.instructions.md) - Universal accessibility
+- [UI Guidelines](./ui-guidelines.instructions.md) - Design principles