fix: add explicit boolean check in FallbackHashEmbeddings constructor

- Add isinstance(dimension, bool) check that raises TypeError
- Prevents boolean values from being accepted as dimensions
- Maintains existing ValueError for other non-int types
- Improves type safety and error message clarity

This addresses the issue where bool is a subclass of int in Python,
which could lead to unexpected behavior when boolean values are
passed as dimension parameters.

Author: AlmostBald-TRADING

src/contextforge_memory/embeddings/base.py

@@ -104,6 +104,8 @@ def __init__(self, dimension: int = 32) -> None:
             dimension: The dimension of hash-based embeddings (default: 32).
                 Must be an integer between 2 and 32 (inclusive).
         """
+        if isinstance(dimension, bool):
+            raise TypeError("dimension must be an integer, not a boolean")
         if not isinstance(dimension, int):
             raise ValueError("dimension must be an integer")
         if dimension < 2: