feat: complete monorepo transformation with tools integration

- Add crewai-tools as git subtree preserving full history
- Move tools to proper src/ directory structure with git mv
- Configure tools pyproject.toml for workspace dependency on crewai-core
- Update workspace configuration to include both packages
- Fix build configurations for both packages

packages/tools/src/crewai_tools/rag/source_content.py

@@ -0,0 +1,46 @@
+import os
+from urllib.parse import urlparse
+from typing import TYPE_CHECKING
+from pathlib import Path
+from functools import cached_property
+
+from crewai_tools.rag.misc import compute_sha256
+
+if TYPE_CHECKING:
+    from crewai_tools.rag.data_types import DataType
+
+
+class SourceContent:
+    def __init__(self, source: str | Path):
+        self.source = str(source)
+
+    def is_url(self) -> bool:
+        if not isinstance(self.source, str):
+            return False
+        try:
+            parsed_url = urlparse(self.source)
+            return bool(parsed_url.scheme and parsed_url.netloc)
+        except Exception:
+            return False
+
+    def path_exists(self) -> bool:
+        return os.path.exists(self.source)
+
+    @cached_property
+    def data_type(self) -> "DataType":
+        from crewai_tools.rag.data_types import DataTypes
+
+        return DataTypes.from_content(self.source)
+
+    @cached_property
+    def source_ref(self) -> str:
+        """"
+        Returns the source reference for the content.
+        If the content is a URL or a local file, returns the source.
+        Otherwise, returns the hash of the content.
+        """
+
+        if self.is_url() or self.path_exists():
+            return self.source
+
+        return compute_sha256(self.source)