Replace ".NET Aspire" with "Aspire" in user-facing strings

[Copilot]

Updates user-facing strings to use "Aspire" instead of ".NET Aspire" for simplified branding.

Changes

• Dashboard resources: Updated UI strings in Layout.resx and AIAssistant.resx with corresponding Designer.cs files
• AI assistant prompts: Updated system messages and help text in KnownChatMessages.cs
• Error messages: Updated endpoint conflict exception message in ResourceBuilderExtensions.cs
• Tests: Updated assertions in WithEndpointTests.cs to match new error message
• Localization: 26 .xlf files marked for translation review

Example

Before:

throw new DistributedApplicationException(
    "...For more information on networking in .NET Aspire see: https://aka.ms/dotnet/aspire/networking");

After:

throw new DistributedApplicationException(
    "...For more information on networking in Aspire see: https://aka.ms/dotnet/aspire/networking");

Original prompt

Look for .NET Aspire in user fdcing resource string and other strings snd make it Aspire

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[github-actions]

🚀 Dogfood this PR with:

⚠️ WARNING: Do not do this without first carefully reviewing the code of this PR to satisfy yourself it is safe.

curl -fsSL https://raw.githubusercontent.com/dotnet/aspire/main/eng/scripts/get-aspire-cli-pr.sh | bash -s -- 12442

Or

• Run remotely in PowerShell:

iex "& { $(irm https://raw.githubusercontent.com/dotnet/aspire/main/eng/scripts/get-aspire-cli-pr.ps1) } 12442"

[Copilot]

Pull Request Overview

This PR simplifies the Aspire branding by removing ".NET" prefix from user-facing strings throughout the codebase. The changes affect documentation, UI text, error messages, and localized resources, streamlining the product name to just "Aspire" while maintaining consistency across all languages.

Key Changes

• Error messages and exception text updated to use "Aspire" instead of ".NET Aspire"
• AI assistant prompts and system messages simplified to reference "Aspire"
• Dashboard UI strings updated in resource files with corresponding translations marked for review

Reviewed Changes

Copilot reviewed 31 out of 33 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/Aspire.Hosting/ResourceBuilderExtensions.cs	Updated endpoint conflict exception message to use "Aspire"
tests/Aspire.Hosting.Tests/WithEndpointTests.cs	Updated test assertions to match new error message format
src/Aspire.Dashboard/Model/Assistant/Prompts/KnownChatMessages.cs	Updated AI assistant system messages and prompts to reference "Aspire"
src/Aspire.Dashboard/Resources/Layout.resx	Updated UI strings for dashboard layout from ".NET Aspire" to "Aspire"
src/Aspire.Dashboard/Resources/AIAssistant.resx	Updated AI assistant help text to use "Aspire"
src/Aspire.Dashboard/Resources/xlf/*.xlf (26 files)	Marked translations as needing review for Layout and AIAssistant resource strings

Files not reviewed (2)

• src/Aspire.Dashboard/Resources/AIAssistant.Designer.cs: Language not supported
• src/Aspire.Dashboard/Resources/Layout.Designer.cs: Language not supported