diff --git a/inventory_sync/specs.py b/inventory_sync/specs.py
index cc52e92..83eb077 100644
--- a/inventory_sync/specs.py
+++ b/inventory_sync/specs.py
@@ -44,7 +44,7 @@ FIELD_SPECS = [
     FieldSpec("零售价", "零售价", 2, "0.00", 2),
     FieldSpec("店铺名称", "店铺名称", 1),
     FieldSpec("店铺可用库存", "店铺挂单量", 2, "0", 0),
-    FieldSpec("总库存", "总库存", 2, "0", 0),
+    FieldSpec("全渠道总库存", "总库存", 2, "0", 0),
     FieldSpec(month_sales_field_name(0), "本月销售数量", 2, "0", 0),
     FieldSpec(month_sales_field_name(1), "上月销售数量", 2, "0", 0),
     FieldSpec(month_sales_field_name(2), "上上月销售数量", 2, "0", 0),
diff --git a/inventory_sync/sql.py b/inventory_sync/sql.py
index fd8415e..6bec581 100644
--- a/inventory_sync/sql.py
+++ b/inventory_sync/sql.py
@@ -83,6 +83,7 @@ shop_stock_latest AS (
     ) t
     WHERE t.rn = 1
       AND t."状态" <> '已失效'
+      AND t."可发库存" <> 0
     GROUP BY
         t."统一规格编码",
         t."店铺主键"
@@ -158,7 +159,7 @@ LEFT JOIN analytics_layer.dim_shop ds
     ON sl."店铺主键" = ds."店铺主键"
 LEFT JOIN sales_summary ss
     ON sl."统一规格编码" = ss."统一规格编码"
-   AND sl."店铺主键" = ss."店铺主键"
+    AND sl."店铺主键" = ss."店铺主键"
 LEFT JOIN product_dim pd
     ON sl."统一规格编码" = pd."统一规格编码"
 WHERE pd."品牌名称" = {brand_filter}
diff --git a/scripts/generate_batch_inventory_report.py b/scripts/generate_batch_inventory_report.py
index 79f7b69..0c2e19a 100644
--- a/scripts/generate_batch_inventory_report.py
+++ b/scripts/generate_batch_inventory_report.py
@@ -1,5 +1,18 @@
 #!/usr/bin/env python3
 
+from pathlib import Path
+import sys
+
+
+def _bootstrap_project_root() -> None:
+    project_root = Path(__file__).resolve().parents[1]
+    project_root_text = str(project_root)
+    if project_root_text not in sys.path:
+        sys.path.insert(0, project_root_text)
+
+
+_bootstrap_project_root()
+
 from inventory_analytics.batch_inventory_report.cli import main
 
 
diff --git a/scripts/sync_channel_inventory.py b/scripts/sync_channel_inventory.py
index 03b797c..0049088 100644
--- a/scripts/sync_channel_inventory.py
+++ b/scripts/sync_channel_inventory.py
@@ -1,11 +1,24 @@
 #!/usr/bin/env python3
 
+from pathlib import Path
 import sys
 
+
+def _bootstrap_project_root() -> None:
+    project_root = Path(__file__).resolve().parents[1]
+    project_root_text = str(project_root)
+    if project_root_text not in sys.path:
+        sys.path.insert(0, project_root_text)
+
+
+_bootstrap_project_root()
+
 from inventory_analytics.channel_inventory_sync.entrypoint import main
 
 
 def _ensure_default_action() -> None:
+    if any(arg in {"-h", "--help"} for arg in sys.argv[1:]):
+        return
     if any(arg == "--action" or arg.startswith("--action=") for arg in sys.argv[1:]):
         return
     sys.argv.extend(["--action", "all"])
diff --git a/scripts/upload_batch_inventory.py b/scripts/upload_batch_inventory.py
index 5e0ab63..bf91b0e 100644
--- a/scripts/upload_batch_inventory.py
+++ b/scripts/upload_batch_inventory.py
@@ -1,5 +1,18 @@
 #!/usr/bin/env python3
 
+from pathlib import Path
+import sys
+
+
+def _bootstrap_project_root() -> None:
+    project_root = Path(__file__).resolve().parents[1]
+    project_root_text = str(project_root)
+    if project_root_text not in sys.path:
+        sys.path.insert(0, project_root_text)
+
+
+_bootstrap_project_root()
+
 from inventory_analytics.batch_upload.web import main