diff --git a/README.md b/README.md
index 2965fda7..a1a5b014 100644
--- a/README.md
+++ b/README.md
@@ -80,6 +80,8 @@ docker compose -f docker-compose.dev.yml exec -T frontend npm run build
 docker compose -f docker-compose.dev.yml exec -T backend npm run db:migrate
 ```
 
+当前数据库脚本只保留新库初始化结构，不维护历史测试库的升级兼容；切换到这版前请重建开发库或重置 Docker volume。
+
 ## 环境变量
 
 本地开发从根目录 `.env` 读取，模板为：
diff --git a/apps/backend/README.md b/apps/backend/README.md
index 606d98ac..76179c76 100644
--- a/apps/backend/README.md
+++ b/apps/backend/README.md
@@ -68,7 +68,7 @@ npm test
 - `src/services/fulfillment`：快手 Cloud 履约编排
 - `src/services/admin`：后台读写、权限、配置管理
 - `src/repositories`：数据库访问
-- `src/db/migrations`：数据库迁移
+- `src/db/migrations`：新库初始化脚本
 
 ## Docker 开发
 
diff --git a/apps/backend/src/db/migrations/001_fulfillment_rebuild.sql b/apps/backend/src/db/migrations/001_init.sql
similarity index 84%
rename from apps/backend/src/db/migrations/001_fulfillment_rebuild.sql
rename to apps/backend/src/db/migrations/001_init.sql
index 9c7a0006..c3389371 100644
--- a/apps/backend/src/db/migrations/001_fulfillment_rebuild.sql
+++ b/apps/backend/src/db/migrations/001_init.sql
@@ -68,6 +68,37 @@ CREATE TABLE IF NOT EXISTS sku_fulfillment_bindings (
 CREATE INDEX IF NOT EXISTS idx_sku_fulfillment_bindings_lookup
   ON sku_fulfillment_bindings(sku_code, provider, platform, shop_id, enabled, priority);
 
+CREATE TABLE IF NOT EXISTS product_match_rules (
+  id BIGSERIAL PRIMARY KEY,
+  provider TEXT NOT NULL DEFAULT '',
+  platform TEXT NOT NULL DEFAULT '',
+  shop_id TEXT NOT NULL DEFAULT '',
+  external_item_id TEXT NOT NULL DEFAULT '',
+  external_sku_code TEXT NOT NULL DEFAULT '',
+  external_sku_name TEXT NOT NULL DEFAULT '',
+  external_sku_name_normalized TEXT NOT NULL DEFAULT '',
+  resolved_sku_code TEXT NOT NULL,
+  enabled BOOLEAN NOT NULL DEFAULT TRUE,
+  priority INTEGER NOT NULL DEFAULT 100,
+  config_json JSONB NOT NULL DEFAULT '{}'::jsonb,
+  created_at TIMESTAMPTZ NOT NULL,
+  updated_at TIMESTAMPTZ NOT NULL
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_product_match_rules_unique
+  ON product_match_rules(
+    provider,
+    platform,
+    shop_id,
+    external_item_id,
+    external_sku_code,
+    external_sku_name_normalized,
+    resolved_sku_code
+  );
+
+CREATE INDEX IF NOT EXISTS idx_product_match_rules_lookup
+  ON product_match_rules(provider, platform, shop_id, enabled, priority, id);
+
 CREATE TABLE IF NOT EXISTS orders (
   id BIGSERIAL PRIMARY KEY,
   provider TEXT NOT NULL,
@@ -114,6 +145,7 @@ CREATE TABLE IF NOT EXISTS inventory_items (
   source_type TEXT NOT NULL DEFAULT 'static_import',
   status TEXT NOT NULL DEFAULT 'available',
   invalid_reason TEXT NOT NULL DEFAULT '',
+  inventory_group_code TEXT NOT NULL DEFAULT '',
   metadata_json JSONB NOT NULL DEFAULT '{}'::jsonb,
   consumed_at TIMESTAMPTZ,
   created_at TIMESTAMPTZ NOT NULL,
@@ -124,6 +156,20 @@ CREATE UNIQUE INDEX IF NOT EXISTS idx_inventory_items_unique_payload
   ON inventory_items(sku_code, credential_type, md5(payload_json::text));
 CREATE INDEX IF NOT EXISTS idx_inventory_items_pool
   ON inventory_items(sku_code, credential_type, status, id);
+CREATE INDEX IF NOT EXISTS idx_inventory_items_group_lookup
+  ON inventory_items(sku_code, credential_type, inventory_group_code, status, id);
+
+CREATE TABLE IF NOT EXISTS admin_user_inventory_group_bindings (
+  id BIGSERIAL PRIMARY KEY,
+  admin_user_id BIGINT NOT NULL REFERENCES admin_users(id) ON DELETE CASCADE,
+  inventory_group_code TEXT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL,
+  updated_at TIMESTAMPTZ NOT NULL,
+  UNIQUE(admin_user_id, inventory_group_code)
+);
+
+CREATE INDEX IF NOT EXISTS idx_admin_user_inventory_group_bindings_user_id
+  ON admin_user_inventory_group_bindings(admin_user_id, inventory_group_code);
 
 CREATE TABLE IF NOT EXISTS fulfillment_tasks (
   id BIGSERIAL PRIMARY KEY,
diff --git a/apps/backend/src/db/migrations/002_product_match_rules.sql b/apps/backend/src/db/migrations/002_product_match_rules.sql
deleted file mode 100644
index b500c726..00000000
--- a/apps/backend/src/db/migrations/002_product_match_rules.sql
+++ /dev/null
@@ -1,30 +0,0 @@
-CREATE TABLE IF NOT EXISTS product_match_rules (
-  id BIGSERIAL PRIMARY KEY,
-  provider TEXT NOT NULL DEFAULT '',
-  platform TEXT NOT NULL DEFAULT '',
-  shop_id TEXT NOT NULL DEFAULT '',
-  external_item_id TEXT NOT NULL DEFAULT '',
-  external_sku_code TEXT NOT NULL DEFAULT '',
-  external_sku_name TEXT NOT NULL DEFAULT '',
-  external_sku_name_normalized TEXT NOT NULL DEFAULT '',
-  resolved_sku_code TEXT NOT NULL,
-  enabled BOOLEAN NOT NULL DEFAULT TRUE,
-  priority INTEGER NOT NULL DEFAULT 100,
-  config_json JSONB NOT NULL DEFAULT '{}'::jsonb,
-  created_at TIMESTAMPTZ NOT NULL,
-  updated_at TIMESTAMPTZ NOT NULL
-);
-
-CREATE UNIQUE INDEX IF NOT EXISTS idx_product_match_rules_unique
-  ON product_match_rules(
-    provider,
-    platform,
-    shop_id,
-    external_item_id,
-    external_sku_code,
-    external_sku_name_normalized,
-    resolved_sku_code
-  );
-
-CREATE INDEX IF NOT EXISTS idx_product_match_rules_lookup
-  ON product_match_rules(provider, platform, shop_id, enabled, priority, id);
diff --git a/apps/backend/src/db/migrations/004_inventory_group_bindings.sql b/apps/backend/src/db/migrations/004_inventory_group_bindings.sql
deleted file mode 100644
index 6a3a7a27..00000000
--- a/apps/backend/src/db/migrations/004_inventory_group_bindings.sql
+++ /dev/null
@@ -1,17 +0,0 @@
-ALTER TABLE inventory_items
-  ADD COLUMN IF NOT EXISTS inventory_group_code TEXT NOT NULL DEFAULT '';
-
-CREATE INDEX IF NOT EXISTS idx_inventory_items_group_lookup
-  ON inventory_items(sku_code, credential_type, inventory_group_code, status, id);
-
-CREATE TABLE IF NOT EXISTS admin_user_inventory_group_bindings (
-  id BIGSERIAL PRIMARY KEY,
-  admin_user_id BIGINT NOT NULL REFERENCES admin_users(id) ON DELETE CASCADE,
-  inventory_group_code TEXT NOT NULL,
-  created_at TIMESTAMPTZ NOT NULL,
-  updated_at TIMESTAMPTZ NOT NULL,
-  UNIQUE(admin_user_id, inventory_group_code)
-);
-
-CREATE INDEX IF NOT EXISTS idx_admin_user_inventory_group_bindings_user_id
-  ON admin_user_inventory_group_bindings(admin_user_id, inventory_group_code);
diff --git a/apps/backend/src/db/migrations/005_drop_message_deliveries.sql b/apps/backend/src/db/migrations/005_drop_message_deliveries.sql
deleted file mode 100644
index 1a53bdae..00000000
--- a/apps/backend/src/db/migrations/005_drop_message_deliveries.sql
+++ /dev/null
@@ -1 +0,0 @@
-DROP TABLE IF EXISTS message_deliveries;
diff --git a/apps/backend/src/db/migrations/006_rename_task_runtime_contexts.sql b/apps/backend/src/db/migrations/006_rename_task_runtime_contexts.sql
deleted file mode 100644
index 77290219..00000000
--- a/apps/backend/src/db/migrations/006_rename_task_runtime_contexts.sql
+++ /dev/null
@@ -1,7 +0,0 @@
-DO $$
-BEGIN
-  IF to_regclass('public.tencent_browser_contexts') IS NOT NULL
-     AND to_regclass('public.task_runtime_contexts') IS NULL THEN
-    ALTER TABLE tencent_browser_contexts RENAME TO task_runtime_contexts;
-  END IF;
-END $$;
diff --git a/apps/backend/src/db/migrations/007_drop_legacy_tencent_profiles.sql b/apps/backend/src/db/migrations/007_drop_legacy_tencent_profiles.sql
deleted file mode 100644
index cdefd4d7..00000000
--- a/apps/backend/src/db/migrations/007_drop_legacy_tencent_profiles.sql
+++ /dev/null
@@ -1,7 +0,0 @@
-DELETE FROM fulfillment_profiles
-WHERE profile_key IN ('tencent_claim_redeem', 'tencent_claim_assisted')
-  AND NOT EXISTS (
-    SELECT 1
-    FROM fulfillment_tasks
-    WHERE fulfillment_tasks.profile_id = fulfillment_profiles.id
-  );
diff --git a/apps/backend/src/db/migrations/008_rename_claim_code_credential.sql b/apps/backend/src/db/migrations/008_rename_claim_code_credential.sql
deleted file mode 100644
index 6df5993d..00000000
--- a/apps/backend/src/db/migrations/008_rename_claim_code_credential.sql
+++ /dev/null
@@ -1,16 +0,0 @@
-UPDATE inventory_items
-SET credential_type = 'claim_code'
-WHERE credential_type = 'tencent_code';
-
-UPDATE fulfillment_profile_requirements
-SET credential_type = 'claim_code'
-WHERE credential_type = 'tencent_code';
-
-UPDATE fulfillment_tasks
-SET context_json = jsonb_set(
-  context_json,
-  '{primaryRequirement,credentialType}',
-  '"claim_code"'::jsonb,
-  false
-)
-WHERE context_json #>> '{primaryRequirement,credentialType}' = 'tencent_code';
diff --git a/apps/backend/src/db/migrations/009_rename_runtime_session_id.sql b/apps/backend/src/db/migrations/009_rename_runtime_session_id.sql
deleted file mode 100644
index bbf88316..00000000
--- a/apps/backend/src/db/migrations/009_rename_runtime_session_id.sql
+++ /dev/null
@@ -1,20 +0,0 @@
-DO $$
-BEGIN
-  IF to_regclass('public.task_runtime_contexts') IS NOT NULL
-     AND EXISTS (
-       SELECT 1
-       FROM information_schema.columns
-       WHERE table_schema = 'public'
-         AND table_name = 'task_runtime_contexts'
-         AND column_name = 'browser_session_id'
-     )
-     AND NOT EXISTS (
-       SELECT 1
-       FROM information_schema.columns
-       WHERE table_schema = 'public'
-         AND table_name = 'task_runtime_contexts'
-         AND column_name = 'runtime_session_id'
-     ) THEN
-    ALTER TABLE task_runtime_contexts RENAME COLUMN browser_session_id TO runtime_session_id;
-  END IF;
-END $$;