Added Examples for Batched Text Embeddings

[aparna534]

Description
This adds a working example of batch text embeddings using genai.embed_content().

Key Changes:

• New file: examples/gemini/python/batched_embeddings.py

  • It processes multiple texts in a single API call.
  • It uses environment variables for API key configuration.
  • It includes comprehensive error handling.

• Updated: examples/gemini/python/README.md with instructions on how to run the new example.

Verification:

#Local test output

Success! Generated 5 embeddings:

Text 1: First 5 dims: [0.053, -0.001, -0.065, -0.005, 0.026]
Text 2: First 5 dims: [0.045, -0.028, -0.061, 0.012, 0.011]
Text 3: First 5 dims: [0.042, -0.009, -0.079, -0.047, 0.038]
Text 4: First 5 dims: [0.033, -0.023, -0.034, 0.013, 0.023]
Text 5: First 5 dims: [0.051, -0.038, -0.081, -0.007, 0.026]