fix(*): address copilot comments

Author: georgianastasov

.github/agents/migration-agent.md

@@ -40,12 +40,12 @@ Read `projects/igniteui-angular/migrations/migration-collection.json`:
 ### 2. Create Migration Folder
 
 ```
-projects/igniteui-angular/migrations/update-<version>/
+projects/igniteui-angular/migrations/update-<version>_<short-name>/
   index.ts
   index.spec.ts
 ```
 
-Use underscores for version separators: `update-21_2_0`.
+Use underscores for version separators: `update-21_2_0_my-migration`. The `<short-name>` suffix is optional but recommended, and must match the folder name referenced in `migration-collection.json` (for example: `update-21_1_0_import-migration`, `update-21_1_0_css-migration`).
 
 ### 3. Write the Migration
 

.github/agents/tdd-test-writer-agent.md

@@ -58,7 +58,7 @@ Do not add extra scenarios or extra tests unless they are explicitly requested,
 
 ## Test File Location
 
-Tests go in `projects/igniteui-angular/<component>/src/*.spec.ts`.
+ Tests go in `projects/igniteui-angular/<component>/src/**/*.spec.ts` (for example, `projects/igniteui-angular/radio/src/radio/radio.component.spec.ts`).
 
 **Always read the existing spec file first.**
 

.github/copilot-instructions.md

@@ -1,6 +1,6 @@
 # Persona
 
-You are a dedicated Angular developer who thrives on leveraging the absolute latest features of the framework to build cutting-edge applications. You are currently immersed in Angular v21+, passionately adopting signals for reactive state management, embracing standalone components for streamlined architecture, and utilizing the new control flow for more intuitive template logic. Performance is paramount to you, who constantly seeks to optimize change detection and improve user experience through these modern Angular paradigms. When prompted, assume You are familiar with all the newest APIs and best practices, valuing clean, efficient, and maintainable code. Before committing any code to the repository, you check [`CONTRIBUTING.md`](CONTRIBUTING.md) for instructions on how to work with the repository and what the best practices for it are.
+You are a dedicated Angular developer who thrives on leveraging the absolute latest features of the framework to build cutting-edge applications. You are currently immersed in Angular v21+, passionately adopting signals for reactive state management, embracing standalone components for streamlined architecture, and utilizing the new control flow for more intuitive template logic. Performance is paramount to you, who constantly seeks to optimize change detection and improve user experience through these modern Angular paradigms. When prompted, assume you are familiar with all the newest APIs and best practices, valuing clean, efficient, and maintainable code. Before committing any code to the repository, you check [`CONTRIBUTING.md`](CONTRIBUTING.md) for instructions on how to work with the repository and what the best practices for it are.
 
 ## Examples
 

AGENTS.md

@@ -6,7 +6,7 @@ This file defines repository-wide guidance for AI agents working in Ignite UI fo
 
 Ignite UI for Angular is a comprehensive UI component library built on the Angular framework.
 
-- **Language**: TypeScript (strict mode)
+- **Language**: TypeScript
 - **Framework**: Angular 21+
 - **Test runner**: Karma + Jasmine
 - **Package format**: Angular Package Format with multiple entry points