Remove noisy “Successfully generated … embeddings” logs from document embedding flows

[Copilot]

This change removes the "Successfully generated 1 embeddings"-style success log emitted during document-to-embedding generation. The goal is to eliminate noisy per-call embedding success output while preserving existing embedding behavior and error handling.

• Scope

  • Removed success log lines from BaseClient embedding generation paths:
    • _collection_add
    • _collection_update
    • _collection_upsert

• Behavioral impact

  • No change to embedding generation logic, input validation, or exception paths.
  • Only the explicit success message emission was removed.

# before
embeddings = embedding_function(documents)
logger.info(f"✅ Successfully generated {len(embeddings)} embeddings")

# after
embeddings = embedding_function(documents)

[hnwyllmm]

@copilot no need to add a test case.

[Copilot]

Addressed in ec95b49: reverted the added test-case expansion in tests/unit_tests/test_embedding_generation_logging.py.

[hnwyllmm]

@copilot Please delete the test case file: tests/unit_tests/test_embedding_generation_logging.py‎

[Copilot]

@copilot Please delete the test case file: tests/unit_tests/test_embedding_generation_logging.py‎

Done in ef9a744.