self query + query constructor + json output parser + schema detector + fix opensearch + example semi structured rag

[t0mpl]

PR Checklist

• [ ] Read the Contributing documentation.
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• [ ] Name your Pull Request title clearly, concisely, and prefixed with the name of the primarily affected package you changed according to Good commit messages (such as memory: add interfaces for X, Y or util: add whizzbang helpers).
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[t0mpl]

where did I forget it? If i split it, it will make the process very long as everything is dependent.

[t0mpl]

tried to rebase but i get some linting errors