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/wwwroot/web/fis.usr.css

@@ -28,7 +28,7 @@
 }
 .usrfrm .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;
@@ -77,6 +77,16 @@
   color: #555;
   overflow-wrap: anywhere;
 }
+.usrfrm .usr_col_groups {
+  color: #555;
+  font-size: 0.9rem;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.usrfrm .usr_row_hd .usr_col_groups {
+  font-size: inherit;
+}
 .usrfrm .usr_pill {
   display: inline-block;
   padding: 0.1rem 0.6rem;
@@ -110,7 +120,7 @@
   }
   .usrfrm .usr_row {
     grid-template-columns: 2.25rem 1fr;
-    grid-template-areas: "avatar name" "avatar email" "avatar status";
+    grid-template-areas: "avatar name" "avatar email" "avatar groups" "avatar status";
   }
   .usrfrm .usr_row_hd {
     display: none;
@@ -125,6 +135,11 @@
     grid-area: email;
     font-size: 0.85rem;
   }
+  .usrfrm .usr_col_groups {
+    grid-area: groups;
+    font-size: 0.85rem;
+    white-space: normal;
+  }
   .usrfrm .usr_col_status {
     grid-area: status;
   }