feat: Add base project structure with API and web components

api/app/schemas/knowledgeshare_schema.py

@@ -0,0 +1,37 @@
+from pydantic import BaseModel, Field, field_serializer, ConfigDict
+import datetime
+import uuid
+from .knowledge_schema import Knowledge
+from .workspace_schema import Workspace
+from .user_schema import User
+
+
+class KnowledgeShareBase(BaseModel):
+    source_kb_id: uuid.UUID
+    source_workspace_id: uuid.UUID | None = None
+    target_kb_id: uuid.UUID | None = None
+    target_workspace_id: uuid.UUID
+    shared_by: uuid.UUID | None = None
+
+
+class KnowledgeShareCreate(KnowledgeShareBase):
+    pass
+
+
+class KnowledgeShare(KnowledgeShareBase):
+    id: uuid.UUID
+    created_at: datetime.datetime
+    updated_at: datetime.datetime
+    target_kb: Knowledge
+    target_workspace: Workspace
+    shared_user: User
+
+    @field_serializer("created_at", when_used="json")
+    def _serialize_created_at(self, dt: datetime.datetime):
+        return int(dt.timestamp() * 1000) if dt else None
+
+    model_config = ConfigDict(from_attributes=True)
+
+    @field_serializer("updated_at", when_used="json")
+    def _serialize_updated_at(self, dt: datetime.datetime):
+        return int(dt.timestamp() * 1000) if dt else None