Add docs/images folder with series-6 screenshots; update blog 6.1 image paths

Author: workcontrolgit

blogs/series-6-ai-app-features/6.1-dotnet-ai-foundation.md

@@ -347,15 +347,15 @@ dotnet run
 
 Open Swagger at `https://localhost:44378/swagger` and confirm the API is running — you'll see all controller groups listed.
 
-![NSwag Swagger UI for the TalentManagement .NET 10 Web API — all versioned controller groups collapsed](../../Tests/AngularNetTutorial-Playwright/screenshots-output/series-0-architecture/swagger-ui-overview.png)
+![NSwag Swagger UI for the TalentManagement .NET 10 Web API — all versioned controller groups collapsed](../../docs/images/series-6-ai-app-features/swagger-ui-overview.png)
 
 Scroll down to find the **Ai** section and expand it.
 
-![Swagger UI AI controller expanded — POST /api/v1/ai/chat, POST /api/v1/ai/hr-insight, POST /api/v1/ai/nl-employee-search](../../Tests/AngularNetTutorial-Playwright/screenshots-output/series-2-dotnet-api/swagger-ai-endpoints.png)
+![Swagger UI AI controller expanded — POST /api/v1/ai/chat, POST /api/v1/ai/hr-insight, POST /api/v1/ai/nl-employee-search](../../docs/images/series-6-ai-app-features/swagger-ai-endpoints.png)
 
 Click **POST /api/v1/ai/chat**, then **Try it out**, and send:
 
-![Swagger UI POST /api/v1/ai/chat endpoint — request body schema with message and systemPrompt fields](../../Tests/AngularNetTutorial-Playwright/screenshots-output/series-2-dotnet-api/swagger-ai-chat-endpoint.png)
+![Swagger UI POST /api/v1/ai/chat endpoint — request body schema with message and systemPrompt fields](../../docs/images/series-6-ai-app-features/swagger-ai-chat-endpoint.png)
 
 Expand **POST /api/v1/ai/chat**, click **Try it out**, and send: