修复新建数据库缺少is_deleted列的问题

在CREATE TABLE语句中直接添加is_deleted字段，确保新建数据库时就包含该列。
修改了三个表的建表语句：
- fabrics表
- fabric_stock_in表
- fabric_consumption表

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

database.py

@@ -42,7 +42,8 @@ class DatabaseManager:
                         unit TEXT DEFAULT '米',
                         timestamp TEXT,
                         created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
-                        updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+                        updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+                        is_deleted INTEGER DEFAULT 0
                     )
                 ''')
                 
@@ -194,6 +195,7 @@ class DatabaseManager:
                         note TEXT,
                         created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
                         updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+                        is_deleted INTEGER DEFAULT 0,
                         FOREIGN KEY (model) REFERENCES fabrics(model)
                     )
                 ''')
@@ -216,6 +218,7 @@ class DatabaseManager:
                         unit TEXT,
                         created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
                         updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+                        is_deleted INTEGER DEFAULT 0,
                         FOREIGN KEY (style_number) REFERENCES garments(style_number),
                         FOREIGN KEY (model) REFERENCES fabrics(model)
                     )