…coverage

…drock embeddings

… function

…ng_model test

…odel test

… conventions

…d tests

…tests

… model settings examples

… for embedding files

…truncation strategies and supported purposes

- Removed the mock_vcr_botocore_content_length fixture to simplify VCR handling.
- Added 'x-amzn-bedrock-' to ALLOWED_HEADER_PREFIXES for Bedrock embeddings.
- Updated content-length header in serialize function to match decompressed body size.
- Adjusted input_tokens in RequestUsage for various Bedrock embedding tests to reflect actual token counts.
- Changed model names to include versioning for consistency.
- Increased embedding dimensions in test assertions for Bedrock and Nova models.

…p test execution

…accepts text input