chore: cleanup unncessary comments/casts to ignore type warnings

[georgeh0]

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[Copilot]

Pull request overview

This PR cleans up unnecessary type checking suppressions now that the mypy configuration has been properly tuned. The main change is updating the mypy config to handle untyped decorators, which allows removal of many type ignore comments throughout the codebase.

• Updated mypy configuration to disable "untyped-decorator" errors for examples
• Removed unnecessary # type: ignore comments from import statements and return statements
• Removed unnecessary cast() calls and their corresponding imports from the typing module

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pyproject.toml	Updated mypy error suppression list to include "untyped-decorator" for handling decorator-related type issues
python/cocoindex/functions/colpali.py	Removed # type: ignore[import-untyped] comment from colpali_engine import
examples/postgres_source/main.py	Removed type ignore comments from pgvector import and fetchall() return
examples/pdf_embedding/main.py	Removed type ignore comment from text_from_rendered return value
examples/pdf_elements_embedding/main.py	Removed cast() calls and typing import for CLIP embedding functions
examples/patient_intake_extraction_dspy/main.py	Removed type ignore comments from dspy class definitions and return statements
examples/paper_metadata/main.py	Removed cast() call and typing import from pdf_to_markdown function
examples/manuals_llm_extraction/main.py	Removed cast() call and typing import from text conversion
examples/image_search/main.py	Removed type ignore comments from embedding returns and FastAPI decorator
examples/image_search/colpali_main.py	Removed type ignore comment from FastAPI decorator
examples/fastapi_server_docker/main.py	Removed type ignore comment from FastAPI decorator
examples/face_recognition/main.py	Removed type ignore comment from face embedding return
examples/custom_output_files/main.py	Removed type ignore comment from markdown render return

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