feat: Implement module permissions system with database-driven access control

- Added `users_permissions` table for managing user permissions.
- Created `PermissionRepository` for handling permission logic.
- Refactored `controls\Users::permissions()` to utilize the new database structure.
- Introduced AJAX endpoint for saving user permissions.
- Enhanced user management UI with permission checkboxes.
- Added vacation management template for handling employee absences.
- Implemented tests for `PermissionRepository`.

.vscode/ftp-kr.json

@@ -12,6 +12,9 @@
   "ignoreRemoteModification": true,
   "ignore": [
     ".git",
-    "/.vscode"
+    "/.vscode",
+    "/.serena",
+    "/.claude",
+    "CLAUDE.md"
   ]
 }

.vscode/ftp-kr.sync.cache.json

@@ -89,8 +89,8 @@
           },
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-            "size": 3914,
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           }
         },
@@ -187,6 +187,12 @@
               "size": 610,
               "lmtime": 1770653480229,
               "modified": false
+            },
+            "VacationRepository.php": {
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+              "size": 9593,
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+              "modified": false
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           }
         },
@@ -229,8 +235,8 @@
           },
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-            "lmtime": 1770654026945,
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           "class.Wiki.php": {
@@ -258,21 +264,15 @@
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-        "modified": false
-      },
-      "CODE_INDEX.md": {
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-        "size": 16884,
-        "lmtime": 1770652965090,
+        "size": 4659,
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         "modified": false
       },
       "config.php": {
         "type": "-",
-        "size": 1186,
-        "lmtime": 1770587027872,
-        "modified": true
+        "size": 1243,
+        "lmtime": 1771851585764,
+        "modified": false
       },
       "cron.php": {
         "type": "-",
@@ -282,17 +282,36 @@
       },
       ".htaccess": {
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-        "size": 1024,
-        "lmtime": 0,
-        "modified": false
-      },
-      "index.php": {
-        "type": "-",
-        "size": 2464,
+        "size": 1055,
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         "modified": true
       },
-      "layout": {},
+      "index.php": {
+        "type": "-",
+        "size": 2782,
+        "lmtime": 1772108635118,
+        "modified": false
+      },
+      "layout": {
+        "style.css": {
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+          "lmtime": 1772109274106,
+          "modified": false
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+        "style.css.map": {
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+        "style.scss": {
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+          "lmtime": 1772111528605,
+          "modified": false
+        }
+      },
       "libraries": {},
       "logs.txt": {
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@@ -341,14 +360,14 @@
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           "task_edit.php": {
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+            "size": 32082,
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-            "lmtime": 1771426296050,
+            "size": 27993,
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           },
           "task_single.php": {
@@ -373,14 +392,20 @@
           },
           "main-view.php": {
             "type": "-",
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+            "size": 2067,
             "lmtime": 1770653623175,
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+            "modified": true
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           "settings.php": {
             "type": "-",
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+            "size": 1586,
             "lmtime": 0,
+            "modified": true
+          },
+          "vacations.php": {
+            "type": "-",
+            "size": 15969,
+            "lmtime": 1772109751414,
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@@ -527,15 +552,15 @@
       },
       "TODO.md": {
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