补充遗漏翻译，新增启动脚本，整理import

app/utils/tasks.py

@@ -1,14 +1,16 @@
-from huey import SqliteHuey
 import subprocess
 import os
-from app.models import db, PrintFile, SystemConfig
-from app.utils.conf_parse import ConfParse
 import json
 import uuid
 import configparser
+from huey import SqliteHuey
+from app import create_app
+from app.models import db, PrintFile, SystemConfig
+from app.utils.conf_parse import ConfParse
 from app.utils.slice_engines import get_slicer_engine
+from app.utils.stl_merger import merge_stls
+from app.utils.stl_simplifier import simplify_stl
 
-import os
 
 # Ensure instance directory exists
 instance_dir = os.path.join(os.path.dirname(os.path.dirname(__file__)), '..', 'instance')
@@ -29,7 +31,6 @@ def get_gcode_dir(app):
 def slice_stl_task(file_id, stl_filepath, quality_preset=None, material_preset=None, infill_density=None, support_enable=None, support_pattern=None, delete_stl=False):
     # This is run by the Huey worker
     # We need to create an app context to interact with the database
-    from app import create_app
     app = create_app()
     with app.app_context():
         print_file = PrintFile.query.get(file_id)
@@ -95,10 +96,8 @@ def slice_stl_task(file_id, stl_filepath, quality_preset=None, material_preset=N
 
 @huey.task()
 def merge_and_slice_task(file_id, inputs, merged_filepath, quality_preset=None, material_preset=None, infill_density=None, support_enable=None, support_pattern=None, delete_stl=False):
-    from app import create_app
     app = create_app()
     with app.app_context():
-        from app.models import PrintFile, db
         print_file = PrintFile.query.get(file_id)
         if not print_file:
             return
@@ -106,7 +105,6 @@ def merge_and_slice_task(file_id, inputs, merged_filepath, quality_preset=None,
         db.session.remove()
         
         try:
-            from app.utils.stl_merger import merge_stls
             merge_stls(inputs, merged_filepath)
             
             # Now trigger the regular slicing task
@@ -123,13 +121,8 @@ def merge_and_slice_task(file_id, inputs, merged_filepath, quality_preset=None,
 
 @huey.task()
 def simplify_stl_task(file_id, filepath):
-    from app import create_app
     app = create_app()
     with app.app_context():
-        from app.models import PrintFile, SystemConfig, db
-        import os
-        from app.utils.stl_simplifier import simplify_stl
-        
         print_file = PrintFile.query.get(file_id)
         if not print_file:
             return