feat: Add Admin Groups Management Module

- Introduced a new module for managing user groups (`usrgrp`) in the administration interface.
- Implemented CRUD operations for user groups: list, create, rename, and delete.
- Added authorization checks to ensure only users with appropriate permissions can manage groups.
- Created corresponding frontend JavaScript and SCSS files for the new module.
- Updated documentation to reflect the new group management functionality and its authorization model.
- Added SQL stored procedures for group management operations.
- Established a new login script for database access, ensuring proper security practices.

Fuchs/js/intranet/modules/fis.usr.scss

@@ -11,7 +11,7 @@
 
     .usr_row {
         display: grid;
-        grid-template-columns: 2.75rem 1.6fr 1.8fr 8rem;
+        grid-template-columns: 2.75rem 1.4fr 1.6fr 1.6fr 8rem;
         align-items: center;
         gap: 0.75rem;
         padding: 0.55rem 1rem;
@@ -57,6 +57,8 @@
 
     .usr_col_name { font-weight: 600; color: #222; }
     .usr_col_email { color: #555; overflow-wrap: anywhere; }
+    .usr_col_groups { color: #555; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+    .usr_row_hd .usr_col_groups { font-size: inherit; }
 
     .usr_pill {
         display: inline-block;
@@ -86,11 +88,12 @@
     .usrfrm {
         padding: 0.75rem;
 
-        .usr_row { grid-template-columns: 2.25rem 1fr; grid-template-areas: "avatar name" "avatar email" "avatar status"; }
+        .usr_row { grid-template-columns: 2.25rem 1fr; grid-template-areas: "avatar name" "avatar email" "avatar groups" "avatar status"; }
         .usr_row_hd { display: none; }
         .usr_avatar { grid-area: avatar; }
         .usr_col_name { grid-area: name; }
         .usr_col_email { grid-area: email; font-size: 0.85rem; }
+        .usr_col_groups { grid-area: groups; font-size: 0.85rem; white-space: normal; }
         .usr_col_status { grid-area: status; }
     }
 }