feat(platform): close AI expense value loop

Add tenant-safe value, telemetry, connector, commercial, and production-readiness foundations.

server/tests/test_agent_asset_spreadsheet_import.py

@@ -25,9 +25,9 @@ def test_rebuild_from_uploaded_content_preserves_sheet_values() -> None:
 
     assert workbook.sheetnames == ["差旅标准", "补贴标准"]
     assert workbook["差旅标准"]["A2"].value == "北京"
-    assert workbook["差旅标准"]["B2"].value == "500"
+    assert workbook["差旅标准"]["B2"].value == 500
     assert workbook["补贴标准"]["A2"].value == "直辖市"
-    assert workbook["补贴标准"]["B2"].value == "75"
+    assert workbook["补贴标准"]["B2"].value == 75
 
 
 def build_workbook_bytes(rows: list[list[object]], *, sheet_name: str = "规则表") -> bytes: