perf: index shift type and employee in checkins and assignment to avo…

…id full table scans

(cherry picked from commit bc8e352)

hrms/hr/doctype/employee_checkin/employee_checkin.json

@@ -26,7 +26,8 @@
    "fieldtype": "Link",
    "label": "Employee",
    "options": "Employee",
-   "reqd": 1
+   "reqd": 1,
+   "search_index": 1
   },
   {
    "fetch_from": "employee.employee_name",
@@ -48,7 +49,8 @@
    "fieldtype": "Link",
    "label": "Shift",
    "options": "Shift Type",
-   "read_only": 1
+   "read_only": 1,
+   "search_index": 1
   },
   {
    "fieldname": "column_break_4",
@@ -107,10 +109,11 @@
   }
  ],
  "links": [],
- "modified": "2020-07-08 11:02:32.660986",
+ "modified": "2023-05-12 14:52:22.660264",
  "modified_by": "Administrator",
  "module": "HR",
  "name": "Employee Checkin",
+ "naming_rule": "Expression (old style)",
  "owner": "Administrator",
  "permissions": [
   {
@@ -203,6 +206,7 @@
  ],
  "sort_field": "modified",
  "sort_order": "ASC",
+ "states": [],
  "title_field": "employee_name",
  "track_changes": 1
 }