Config Refactor: unify config handling

- Consolidated all system/user config logic into configmanager.py
- Removed duplicate loaders from setup.py and TUI.py
- Eliminated .env redundancy; now only stores WORKING_DIR
- Clarified boundaries: system config immutable, user config mutable
- Updated TUI to use save_user_config()
- Removed all deprecated/legacy config functions and aliases

default_system_config.json

@@ -2,15 +2,38 @@
   "APPNAME": "Loxide",
   "URL": "https://server:3129",
   "LOG_LEVEL": "INFO",
-  "BAD_PATH_PARTS": ["users","wwwroot","windows\\temp","windows\\task","windows\\system32","startup", "windows\\fonts","Recycle.Bin","AppData","programdata", "Solarwinds","kaseya"],
-  "BAD_PUBLISHERS": ["Brave", "Zoom", "GlavSoft", "VNC"],
-  "PUPS":["logmein","invalid","nmap","LTSvc","VNC","Kaseya","Solarwinds","mRemoteNG"],
+  "BAD_PATH_PARTS": [
+    "users",
+    "wwwroot",
+    "windows\\temp",
+    "windows\\task",
+    "windows\\system32",
+    "startup",
+    "windows\\fonts",
+    "Recycle.Bin",
+    "AppData",
+    "programdata",
+    "Solarwinds",
+    "kaseya"
+  ],
+  "BAD_PUBLISHERS": [
+    "Brave",
+    "Zoom",
+    "GlavSoft",
+    "VNC"
+  ],
+  "PUPS": [
+    "logmein",
+    "invalid",
+    "nmap",
+    "LTSvc",
+    "VNC",
+    "Kaseya",
+    "Solarwinds",
+    "mRemoteNG"
+  ],
   "PATH_EXCLUSION_CONST": 4,
   "MIN_FILES_FOR_PATH": 4,
   "VT_THREAT_TOLERANCE": 4,
-  "TELEMETRY": "FALSE",
-  "TELEM_URL": "",
-  "POLICY_MAP_ENF_AUD": {
- 
-    }
+  "POLICY_MAP_ENF_AUD": {}
 }