fix: resolve mypy errors in crewai-files and add all packages to CI type checks

lib/crewai-files/src/crewai_files/formatting/api.py

@@ -122,7 +122,7 @@ def format_multimodal_content(
         return content_blocks
 
     # Use API-specific constraints for OpenAI
-    constraints_key = provider_type
+    constraints_key: str = provider_type
     if api == "responses" and "openai" in provider_type.lower():
         constraints_key = "openai_responses"
 
@@ -187,7 +187,7 @@ async def aformat_multimodal_content(
         return content_blocks
 
     # Use API-specific constraints for OpenAI
-    constraints_key = provider_type
+    constraints_key: str = provider_type
     if api == "responses" and "openai" in provider_type.lower():
         constraints_key = "openai_responses"
 

lib/crewai-files/src/crewai_files/processing/constraints.py

@@ -15,6 +15,7 @@ from crewai_files.core.types import (
 ProviderName = Literal[
     "anthropic",
     "openai",
+    "openai_responses",
     "gemini",
     "bedrock",
     "azure",

lib/crewai-files/src/crewai_files/processing/transformers.py

@@ -120,7 +120,7 @@ def optimize_image(
 
     with Image.open(io.BytesIO(content)) as img:
         if img.mode in ("RGBA", "LA", "P"):
-            img = img.convert("RGB")
+            img = img.convert("RGB")  # type: ignore[assignment]
             output_format = "JPEG"
         else:
             output_format = img.format or "JPEG"

lib/crewai-files/src/crewai_files/processing/validators.py

@@ -85,7 +85,7 @@ def _get_audio_duration(content: bytes, filename: str | None = None) -> float |
         Duration in seconds or None if tinytag unavailable.
     """
     try:
-        from tinytag import TinyTag  # type: ignore[import-untyped]
+        from tinytag import TinyTag
     except ImportError:
         logger.warning(
             "tinytag not installed - cannot validate audio duration. "