feat: 同步本地未提交的前后端更新（plan/quality/material/inspection/production 等模块）

backend/app/database.py

@@ -31,3 +31,69 @@ async def get_db():
 async def init_db():
     async with engine.begin() as conn:
         await conn.run_sync(Base.metadata.create_all)
+        await _run_migrations(conn)
+
+
+async def _run_migrations(conn):
+    """Postgres 专用：为已存在表追加新列（幂等）"""
+    from sqlalchemy import text
+    is_pg = engine.dialect.name == "postgresql"
+    if not is_pg:
+        return
+    statements = [
+        # production_plans 新字段
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS cold_coil_no VARCHAR(30)",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS hot_coil_no VARCHAR(30)",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS incoming_thickness DOUBLE PRECISION",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS product_thickness DOUBLE PRECISION",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS deviation_upper DOUBLE PRECISION",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS deviation_lower DOUBLE PRECISION",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS incoming_width DOUBLE PRECISION",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS product_width DOUBLE PRECISION",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS packaging_req VARCHAR(30)",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS trim_req VARCHAR(30)",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS rolling_mode VARCHAR(30)",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS split_count INTEGER DEFAULT 1",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS coil_diameter DOUBLE PRECISION",
+        "ALTER TABLE production_plans ADD COLUMN IF NOT EXISTS next_process VARCHAR(30)",
+        # 状态列改为 VARCHAR 以适配新值
+        "ALTER TABLE production_plans ALTER COLUMN status TYPE VARCHAR(20) USING status::text",
+        # production_records 新字段
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS sub_coil_no VARCHAR(30)",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS hot_coil_no VARCHAR(30)",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS team VARCHAR(10)",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS steel_grade VARCHAR(30)",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS incoming_thickness DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS deviation_upper DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS deviation_lower DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS incoming_width DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS outlet_width DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS incoming_weight DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS weighed_weight DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS packaging_req VARCHAR(30)",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS trim_req VARCHAR(30)",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS surface_quality VARCHAR(30)",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS product_quality DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS product_length DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS length_per_ton DOUBLE PRECISION",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS offline_time TIMESTAMP",
+        "ALTER TABLE production_records ADD COLUMN IF NOT EXISTS status VARCHAR(20) DEFAULT 'UNWEIGH'",
+        # qc_defect 新字段
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS seq_no INTEGER",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS defect_desc VARCHAR(200)",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS start_position DOUBLE PRECISION",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS end_position DOUBLE PRECISION",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS length_val DOUBLE PRECISION",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS upper_surface BOOLEAN DEFAULT FALSE",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS lower_surface BOOLEAN DEFAULT FALSE",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS side_op BOOLEAN DEFAULT FALSE",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS side_middle BOOLEAN DEFAULT FALSE",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS side_drive BOOLEAN DEFAULT FALSE",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS is_main BOOLEAN DEFAULT FALSE",
+        "ALTER TABLE qc_defect ADD COLUMN IF NOT EXISTS image_url VARCHAR(255)",
+    ]
+    for s in statements:
+        try:
+            await conn.execute(text(s))
+        except Exception:
+            pass