feat(C-01): i18n SystemMessageManager — 83 translatable keys

Phase 1: Core system message migration to Component.translatable().
- Replace getMessageTemplate() hardcoded strings with getTranslationKey() key derivation
- All send methods now use Component.translatable() with positional args
- Add 83 keys to en_us.json (msg.tiedup.system.*)
- Add sendTranslatable() convenience for external callers with string args
- Migrate 3 external getTemplate() callers (PlayerShockCollar, CellRegistryV2)
- Add resistance_suffix key for sendWithResistance()

src/main/java/com/tiedup/remake/state/components/PlayerShockCollar.java

@@ -15,6 +15,8 @@ import com.tiedup.remake.v2.bondage.datadriven.DataDrivenBondageItem;
 import java.util.List;
 import java.util.UUID;
 import net.minecraft.ChatFormatting;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.MutableComponent;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
@@ -99,12 +101,11 @@ public class PlayerShockCollar {
         // HUD Message via SystemMessageManager
         if (messageAddon != null) {
             // Custom message with addon (e.g., GPS violation)
-            SystemMessageManager.sendToPlayer(
-                player,
-                MessageCategory.SLAVE_SHOCK,
-                SystemMessageManager.getTemplate(MessageCategory.SLAVE_SHOCK) +
-                    messageAddon
-            );
+            MutableComponent msg = Component.translatable(
+                SystemMessageManager.getTranslationKey(MessageCategory.SLAVE_SHOCK)
+            ).append(Component.literal(messageAddon));
+            msg.withStyle(style -> style.withColor(ChatFormatting.RED));
+            player.displayClientMessage(msg, true);
         } else {
             SystemMessageManager.sendToPlayer(
                 player,
@@ -239,11 +240,8 @@ public class PlayerShockCollar {
 
         if (!CollarHelper.shouldWarnMasters(stack)) return;
 
-        // Format: "ALERT: <player name> is outside the safe zone!"
-        String alertMessage = String.format(
-            SystemMessageManager.getTemplate(MessageCategory.GPS_OWNER_ALERT),
-            player.getName().getString()
-        );
+        // Translatable: "ALERT: <player name> is outside the safe zone!"
+        String playerName = player.getName().getString();
 
         for (UUID ownerId : CollarHelper.getOwners(stack)) {
             ServerPlayer owner = player
@@ -253,8 +251,8 @@ public class PlayerShockCollar {
             if (owner != null) {
                 SystemMessageManager.sendChatToPlayer(
                     owner,
-                    alertMessage,
-                    ChatFormatting.RED
+                    MessageCategory.GPS_OWNER_ALERT,
+                    player
                 );
             }
         }