add db check at startup

src/basic_memory/models/__init__.py

@@ -1,17 +1,15 @@
 """Models package for basic-memory."""
+
 import basic_memory
-from basic_memory.models.base import Base, SchemaVersion
+from basic_memory.models.base import Base
 from basic_memory.models.knowledge import Entity, Observation, Relation, ObservationCategory
 
 SCHEMA_VERSION = basic_memory.__version__ + "-" + "003"
 
 __all__ = [
-    'Base',
-    'Entity',
-    'Observation', 
-    'ObservationCategory', 
-    'Relation',
-    'SchemaVersion'
+    "Base",
+    "Entity",
+    "Observation",
+    "ObservationCategory",
+    "Relation",
 ]
-
-

src/basic_memory/models/base.py

@@ -8,14 +8,3 @@ class Base(AsyncAttrs, DeclarativeBase):
     """Base class for all models"""
     pass
 
-
-class SchemaVersion(Base):
-    """Track database schema version."""
-
-    __tablename__ = "schema_version"
-
-    # Only one row will exist
-    version: Mapped[str] = mapped_column(String, primary_key=True)
-
-    def __repr__(self) -> str:
-        return f"SchemaVersion(version='{self.version}')"