(EAI-1190) fix eval experiments

[yakubova92]

Jira: https://jira.mongodb.org/browse/EAI-1190

Changes

• using makeGenerateResponse instead of generateResponse in evals/experiments files
• tsconfig file was excluding "**/*.eval.ts", "**/eval/**/*", I removed this so that these files will be included in the build and the build will fail if there are changes to the config that need to be reflected in evals/experiments files
• found a build error when doing this (Module '"mongodb-rag-core"' has no exported member 'validateTags'.), which I fixed with the change to the mongodb-rag-core/src/index.ts file

Notes

[mongodben]

we don't need the .eval.ts files in the actual build output, so i dont think this is the correct approach. rather we could make sure that the evals are being compiled prior to running the main build.

rather, we can just check that the build works using tsconfig.json, which checks all files (whereas tsconfig.build.json only compiles the stuff in the final build).

can update package.json as follows:

{
//other stuff
"scripts": {
    // checks that compiles w/o emitting the compiled files
    "build:check": "tsc --noEmit --project tsconfig.json",
    // automatically runs build:check before build (https://docs.npmjs.com/cli/v8/using-npm/scripts#pre--post-scripts)
    "prebuild": "npm run build:check",
    "build": "rm -rf ./build/ && tsc -b tsconfig.build.json",
//...
},
//...
}

[yakubova92]

Thanks for the suggestion, using the prebuild is a much cleaner way to get this done

[mongodben]

added suggested improvement to the build process. tested on my end and seems to work. pls apply change and validate in CI before merge