Add mock AI providers for templates and testing - #7657

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Commits on Jul 26, 2026

Remove GitHub Models from aichatweb template

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Remove GitHub Models from aiagent-webapi template

jeffhandley
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Introduce MockChatClient in a new Microsoft.Extensions.AI.Testing library

jeffhandley
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Introduce MockEmbeddingGenerator within the MEAI.Testing library

jeffhandley
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Add mock provider to aichatweb template with canned responses

jeffhandley
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Add mock provider to aiagent-webapi template with canned responses

jeffhandley
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Mark MEAI.Testing as preview with Experimental APIs

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Fix local SQLite template key type
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Add dictionary response seeding to MockChatClient
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Commits on Jul 27, 2026

Dispose mock clients in README sample tests
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