diff --git a/dns/cleanup_migration.sql b/dns/cleanup_migration.sql
new file mode 100644
index 0000000..df187d0
--- /dev/null
+++ b/dns/cleanup_migration.sql
@@ -0,0 +1,8 @@
+-- 清理部分应用的迁移记录
+DELETE FROM _sqlx_migrations WHERE version = 1;
+
+-- 可选：也可以删除所有迁移记录，从头开始
+-- TRUNCATE TABLE _sqlx_migrations;
+
+-- 显示清理后的迁移表状态
+SELECT * FROM _sqlx_migrations;
\ No newline at end of file
diff --git a/dns/migrations/004_fix_record_types.sql b/dns/migrations/004_fix_record_types.sql
index 35af5c3..658e3a3 100644
--- a/dns/migrations/004_fix_record_types.sql
+++ b/dns/migrations/004_fix_record_types.sql
@@ -3,5 +3,6 @@
 -- MySQL 8.0+ supports CHECK constraints, but we'll skip adding for compatibility
 
 -- Add indexes for efficient DNS lookups if they don't exist
-CREATE INDEX idx_dns_records_ns_lookup ON dns_records(record_type, name);
+-- Index already created in migration 003_add_ns_records.sql
+-- CREATE INDEX idx_dns_records_ns_lookup ON dns_records(record_type, name);
 CREATE INDEX idx_dns_records_subdomain_lookup ON dns_records(domain_id, name, record_type);
\ No newline at end of file
diff --git a/flumi/export_presets.cfg b/flumi/export_presets.cfg
index 0a12aed..5eef717 100644
--- a/flumi/export_presets.cfg
+++ b/flumi/export_presets.cfg
@@ -329,3 +329,49 @@ permissions/write_sms=false
 permissions/write_social_stream=false
 permissions/write_sync_settings=false
 permissions/write_user_dictionary=false
+
+[preset.3]
+
+name="Web"
+platform="Web"
+runnable=true
+advanced_options=false
+dedicated_server=false
+custom_features=""
+export_filter="all_resources"
+include_filter=""
+exclude_filter=""
+export_path=""
+patches=PackedStringArray()
+encryption_include_filters=""
+encryption_exclude_filters=""
+seed=0
+encrypt_pck=false
+encrypt_directory=false
+script_export_mode=2
+
+[preset.3.options]
+
+custom_template/debug=""
+custom_template/release=""
+variant/extensions_support=false
+variant/thread_support=false
+vram_texture_compression/for_desktop=true
+vram_texture_compression/for_mobile=false
+html/export_icon=true
+html/custom_html_shell=""
+html/head_include=""
+html/canvas_resize_policy=2
+html/focus_canvas_on_start=true
+html/experimental_virtual_keyboard=false
+progressive_web_app/enabled=false
+progressive_web_app/ensure_cross_origin_isolation_headers=true
+progressive_web_app/offline_page=""
+progressive_web_app/display=1
+progressive_web_app/orientation=0
+progressive_web_app/icon_144x144=""
+progressive_web_app/icon_180x180=""
+progressive_web_app/icon_512x512=""
+progressive_web_app/background_color=Color(0, 0, 0, 1)
+threads/emscripten_pool_size=8
+threads/godot_pool_size=4