feat(lohub): Add complete configuration system with 6 config files

- Added messages.yml for all plugin messages with customizable prefix
- Added commands.yml for custom commands (discord, website, store, rules, heal, clearinventory)
- Added serverselector.yml for GUI server selector menu
- Added data.yml for persistent data storage (chat_locked, spawn location)
- Updated ConfigManager to load all config files
- Updated ChatLockManager to use data.yml instead of chatlock.dat
- Updated SpawnManager to use data.yml instead of spawn.yml
- Updated all commands to use messages.yml
- Updated listeners to use messages.yml
- Removed duplicate config files from root directory
- Added CONFIG_GUIDE.md documentation

src/main/java/com/loki/lochat/utils/TimeFormatter.java

@@ -0,0 +1,59 @@
+package com.loki.lochat.utils;
+
+public final class TimeFormatter {
+
+    private TimeFormatter() {
+    }
+
+    public static String format(long millis) {
+        if (millis <= 0) {
+            return "0с";
+        }
+
+        long seconds = millis / 1000;
+        long minutes = seconds / 60;
+        long hours = minutes / 60;
+        long days = hours / 24;
+
+        if (days > 0) {
+            return days + "д " + (hours % 24) + "ч";
+        } else if (hours > 0) {
+            return hours + "ч " + (minutes % 60) + "м";
+        } else if (minutes > 0) {
+            return minutes + "м " + (seconds % 60) + "с";
+        } else {
+            return seconds + "с";
+        }
+    }
+
+    public static long parse(String timeStr) {
+        if (timeStr == null || timeStr.isEmpty()) {
+            return 0;
+        }
+
+        long totalMillis = 0;
+        StringBuilder number = new StringBuilder();
+
+        for (char c : timeStr.toCharArray()) {
+            if (Character.isDigit(c)) {
+                number.append(c);
+            } else if (number.length() > 0) {
+                long value = Long.parseLong(number.toString());
+                totalMillis += getMillisForUnit(c, value);
+                number.setLength(0);
+            }
+        }
+
+        return totalMillis;
+    }
+
+    private static long getMillisForUnit(char unit, long value) {
+        return switch (Character.toLowerCase(unit)) {
+            case 's', 'с' -> value * 1000;
+            case 'm', 'м' -> value * 60 * 1000;
+            case 'h', 'ч' -> value * 60 * 60 * 1000;
+            case 'd', 'д' -> value * 24 * 60 * 60 * 1000;
+            default -> 0;
+        };
+    }
+}