fix: merging dev changes to main branch

[Roopan-Microsoft]

Purpose

This pull request introduces multiple updates across the codebase, including enhancements to document chunking strategies, workflow automation, authentication enforcement, and dependency updates. Key changes include the addition of a JSON chunking strategy, improvements to stale issue and branch management workflows, and the introduction of an API endpoint to check authentication enforcement.

Document Chunking Enhancements:

• Added a new JSON chunking strategy (JSONDocumentChunking) to support chunking JSON documents using RecursiveJsonSplitter. Updated the ChunkingStrategy enum and get_document_chunker function to include this strategy. ([[1]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-b6201cb45257c50c6b01408f41eda8a6c98f706ecf565787e238ed9b20216021R9), [[2]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-b71e753e244fff09afe1f58fa76a8d21717a0ad7c916fa61bd19636ccd8e3ac6R1-R37), [[3]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-0dae734f2b90ee0bb0736c47ac7bb96123fd70e1d2e77bc9e713dc7d6ce19af7R6), [[4]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-0dae734f2b90ee0bb0736c47ac7bb96123fd70e1d2e77bc9e713dc7d6ce19af7R18-R19))
• Updated the default configuration to support JSON document processing, including chunking and loading strategies. ([[1]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-b47f36670d0b4ba0cc29138fec8417b20b5f2f44b73b8e774aae986467797edcR100-R110), [[2]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-484a91ad712386342988fbcb31ad1d9be299ea8dbbdaa247bff98a7255d6b292R71), [[3]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-a4e537c25c25766f823aec9fe3610a6bb7e1e3901eeeee4a575f7d311f6bae67R181-R225), [[4]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-a4e537c25c25766f823aec9fe3610a6bb7e1e3901eeeee4a575f7d311f6bae67L423-R416))

Workflow Automation Improvements:

• Enhanced the stale bot workflow to manage stale issues, pull requests, and unmerged branches. Added functionality to generate a CSV report of inactive branches and allow manual workflow triggering. ([.github/workflows/stale-bot.ymlL1-R82](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-7d98caa1d6d6648f3266503a806c5b7dc6214839a1a1fabd7dcaa5c54d72222eL1-R82))
• Updated the Docker login workflow to include the dependabotchanges branch for registry login. ([.github/workflows/build-docker.ymlL59-R59](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-1d203d2dfb96ccf94b5e0961c7954e3bde73b4539ade27ccc301613e368b944fL59-R59))

Authentication Enforcement:

• Introduced an environment variable (ENFORCE_AUTH) to enforce authentication. Added a new API endpoint (/api/checkauth) to check if authentication is enabled. Updated the frontend to use this endpoint for conditional behavior. ([[1]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-7503275e90a545dba3519622ff9d0866a73e814ddbfbb61156137721bf2a6552R365-R367), [[2]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-71b4d56ed99105547f52c23560eb912eebba767316c4642a965016c5f87b07e9R544-R548), [[3]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-658577780a19da95abc173367d230a5eda323834aa890a174276a0441baed5b9R57-R75), [[4]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-35583ffd539a8b21fc194681752040039cdbb49960ba3ad244a1d0b553cda836L12-R12), [[5]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-35583ffd539a8b21fc194681752040039cdbb49960ba3ad244a1d0b553cda836R55-R60))

Dependency Updates:

• Updated several frontend dependencies, including @babel/traverse, @fluentui/react, and typescript, to their latest versions for improved performance and compatibility. ([[1]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-4894da3ab9a4eacce2482f27d10c37f91ae25f55cf5d4b474ca578ab58246dbdL14-R26), [[2]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-4894da3ab9a4eacce2482f27d10c37f91ae25f55cf5d4b474ca578ab58246dbdL40-R40), [[3]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-4894da3ab9a4eacce2482f27d10c37f91ae25f55cf5d4b474ca578ab58246dbdL51-R56))

Test Suite Enhancements:

• Modified tests to validate the new JSON chunking strategy and authentication enforcement logic. Added mocks for the checkAuthEnforced API in frontend tests. ([[1]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-a4e537c25c25766f823aec9fe3610a6bb7e1e3901eeeee4a575f7d311f6bae67R181-R225), [[2]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-a4e537c25c25766f823aec9fe3610a6bb7e1e3901eeeee4a575f7d311f6bae67L423-R416), [[3]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-b28ee3accc3ddaa4cc54b13f30db8e99a3a53f2d14b40e30cdac616de0c0fd10L11-R11), [[4]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-b28ee3accc3ddaa4cc54b13f30db8e99a3a53f2d14b40e30cdac616de0c0fd10L32-R32), [[5]](https://github.com/Azure-Samples/chat-with-your-data-solution-accelerator/pull/1786/files#diff-b28ee3accc3ddaa4cc54b13f30db8e99a3a53f2d14b40e30cdac616de0c0fd10R75))

Does this introduce a breaking change?

• Yes
• No

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

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