feat: Backend i18n

backend/alembic/versions/020_workspace_ddl.py

@@ -7,7 +7,7 @@ Create Date: 2025-07-06 18:03:36.143060
 """
 from alembic import op
 import sqlalchemy as sa
-import sqlmodel.sql.sqltypes
+from sqlmodel import BigInteger, String, column, table
 
 
 # revision identifiers, used by Alembic.
@@ -25,8 +25,26 @@ def upgrade():
         sa.Column('create_time', sa.BigInteger(), default=0, nullable=False)
     )
     op.create_index(op.f('ix_sys_workspace_id'), 'sys_workspace', ['id'], unique=False)
+    
+    accounts_table = table(
+        "sys_workspace",
+        column("id", BigInteger),
+        column("name", String),
+        column("create_time", BigInteger),
+    )
 
+    op.bulk_insert(
+        accounts_table,
+        [
+            {
+                "id": 1,
+                "name": "i18n_default_workspace",
+                "create_time": 1672531199000
+            }
+        ]
+    )
 
 def downgrade():
-    op.drop_table('sys_workspace')
     op.drop_index(op.f('ix_sys_workspace_id'), table_name='sys_workspace')
+    op.drop_table('sys_workspace')
+