refactor(genai): migrate region tags from generative-ai to genai folder (Batch 1)

[angelcaamal]

Description

Fixes Internal: b/520504837

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Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
• Tests pass: npm test (see Testing)
• Lint pass: npm run lint (see Style)
• Required CI tests pass (see CI testing)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This pull request is from a branch created directly off of GoogleCloudPlatform/nodejs-docs-samples. Not a fork.
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new sample directory, and I created GitHub Actions workflow for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

Note: Any check with (dev), (experimental), or (legacy) can be ignored and should not block your PR from merging (see CI testing).

[gemini-code-assist]

Code Review

This pull request consolidates GenAI sample files by adding new region tags (such as generativeaionvertexai_gemini_token_count and generativeaionvertexai_gemini_system_instruction) to existing JavaScript files under the genai/ directory. Concurrently, it removes several redundant standalone sample files and their associated mocha test files. There are no review comments to address, so I have no feedback to provide.

[snippet-bot]

Here is the summary of changes.

You are about to add 10 region tags.

• genai/count-tokens/counttoken-resp-with-txt.js:16, tag generativeaionvertexai_gemini_token_count
• genai/count-tokens/counttoken-with-txt-vid.js:17, tag generativeaionvertexai_gemini_token_count_advanced
• genai/text-generation/textgen-sys-instr-with-txt.js:17, tag generativeaionvertexai_gemini_translate
• genai/text-generation/textgen-sys-instr-with-txt.js:18, tag generativeaionvertexai_gemini_system_instruction
• genai/text-generation/textgen-transcript-with-gcs-audio.js:16, tag generativeaionvertexai_gemini_audio_transcription
• genai/text-generation/textgen-with-gcs-audio.js:16, tag generativeaionvertexai_gemini_audio_summarization
• genai/text-generation/textgen-with-pdf.js:16, tag generativeaionvertexai_gemini_pdf
• genai/text-generation/textgen-with-txt-stream.js:16, tag generativeaionvertexai_stream_text_basic
• genai/text-generation/textgen-with-txt.js:16, tag generativeaionvertexai_gemini_generate_from_text_input
• genai/tools/tools-func-desc-with-txt.js:17, tag generativeaionvertexai_function_calling_advanced

You are about to delete 10 region tags.

• generative-ai/snippets/count-tokens/countTokens.js:15, tag generativeaionvertexai_gemini_token_count
• generative-ai/snippets/count-tokens/countTokensAdvanced.js:15, tag generativeaionvertexai_gemini_token_count_advanced
• generative-ai/snippets/function-calling/functionCallingAdvanced.js:15, tag generativeaionvertexai_function_calling_advanced
• generative-ai/snippets/gemini-audio-summarization.js:15, tag generativeaionvertexai_gemini_audio_summarization
• generative-ai/snippets/gemini-audio-transcription.js:15, tag generativeaionvertexai_gemini_audio_transcription
• generative-ai/snippets/gemini-pdf.js:15, tag generativeaionvertexai_gemini_pdf
• generative-ai/snippets/gemini-system-instruction.js:15, tag generativeaionvertexai_gemini_system_instruction
• generative-ai/snippets/gemini-text-input.js:15, tag generativeaionvertexai_gemini_generate_from_text_input
• generative-ai/snippets/gemini-translate.js:16, tag generativeaionvertexai_gemini_translate
• generative-ai/snippets/inference/streamTextBasic.js:15, tag generativeaionvertexai_stream_text_basic

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[Kef131]

General question, is it ok to have a double region tag reference for one code snippet?

[iennae]

more than one region tag can refer to the same code snippet.

additionally, you can have start/end multiple times in the same file. You should not have the same region tag in the same repo in different files.

[Kef131]

Thanks for the clarification @iennae

[Kef131]

LGTM