fix(pr-reviews): address spawner reset, numeric name resolution, and activation validation

src/main/java/dev/marcospaulo/canalhandia/CanalhandiaCommand.java

@@ -1975,6 +1975,10 @@ final class CanalhandiaCommand implements CommandExecutor, TabCompleter {
             Msg.error(sender, "A âncora " + loader.displayName() + " já está " + (enabled ? "ativa" : "pausada") + ".");
             return;
         }
+        if (enabled && loader.isExpired()) {
+            Msg.error(sender, "A âncora " + loader.displayName() + " está expirada! Adicione tempo (/chunkloader tempo " + loader.id() + " <horas>) ou abasteça com combustível antes de reativar.");
+            return;
+        }
         plugin.chunkLoaders().setEnabled(loader.id(), enabled);
         plugin.blueMap().syncChunkLoaders();
         Msg.ok(sender, "Âncora " + loader.displayName() + " " + (enabled ? "ATIVADA." : "PAUSADA/DESATIVADA."));
@@ -1998,16 +2002,20 @@ final class CanalhandiaCommand implements CommandExecutor, TabCompleter {
         }
         try {
             double hours = Double.parseDouble(args[1]);
-            if (hours <= 0 && isAdmin) {
-                plugin.chunkLoaders().addTime(loader.id(), -loader.expiresAt()); // permanent
+            if (hours <= 0) {
+                if (isAdmin) {
+                    plugin.chunkLoaders().setExpiresAt(loader.id(), 0L); // permanent
                     Msg.ok(sender, "Âncora " + loader.displayName() + " definida como PERMANENTE.");
                 } else {
+                    Msg.error(sender, "A quantidade de horas deve ser maior que zero.");
+                }
+                return;
+            }
             long millis = (long) (hours * 3600_000L);
             plugin.chunkLoaders().addTime(loader.id(), millis);
             ChunkLoader updated = plugin.chunkLoaders().byId(loader.id());
             String time = (updated != null) ? updated.timeLeft() : "Permanente";
             Msg.ok(sender, "Adicionado " + hours + "h à âncora " + loader.displayName() + ". Tempo restante: " + time);
-            }
             plugin.blueMap().syncChunkLoaders();
         } catch (NumberFormatException e) {
             Msg.error(sender, "Horas inválidas: " + args[1]);

src/main/java/dev/marcospaulo/canalhandia/ChunkLoaderListener.java

@@ -209,6 +209,10 @@ final class ChunkLoaderListener implements Listener {
             }
 
             if (player.isSneaking() && (isOwner || isAdmin)) {
+                if (!loader.enabled() && loader.isExpired()) {
+                    Msg.error(player, "A âncora " + loader.displayName() + " está expirada! Clique com combustível (Pérola do End, Blaze, Diamante, etc.) ou adicione tempo antes de reativar.");
+                    return;
+                }
                 boolean newState = !loader.enabled();
                 plugin.chunkLoaders().setEnabled(loader.id(), newState);
                 Location l = block.getLocation().add(0.5, 0.5, 0.5);

src/main/java/dev/marcospaulo/canalhandia/ChunkLoaders.java

@@ -191,21 +191,24 @@ final class ChunkLoaders {
     }
 
     /**
-     * Finds a chunk loader by its numeric ID (with or without '#') or custom name.
+     * Finds a chunk loader by its numeric ID (with '#' prefix or plain ID) or custom name.
+     * Custom names take precedence over raw numeric IDs to avoid shadowing named loaders.
      */
     ChunkLoader find(String query) {
         if (query == null || query.isBlank()) {
             return null;
         }
         String trimmed = query.trim();
+        if (trimmed.startsWith("#")) {
             try {
-            long id = Long.parseLong(trimmed.startsWith("#") ? trimmed.substring(1) : trimmed);
+                long id = Long.parseLong(trimmed.substring(1));
                 ChunkLoader loader = byId(id);
                 if (loader != null) {
                     return loader;
                 }
             } catch (NumberFormatException ignored) {
             }
+        }
 
         synchronized (loaders) {
             for (ChunkLoader loader : loaders) {
@@ -214,6 +217,15 @@ final class ChunkLoaders {
                 }
             }
         }
+
+        try {
+            long id = Long.parseLong(trimmed);
+            ChunkLoader loader = byId(id);
+            if (loader != null) {
+                return loader;
+            }
+        } catch (NumberFormatException ignored) {
+        }
         return null;
     }
 
@@ -503,6 +515,15 @@ final class ChunkLoaders {
             if (w != null) {
                 w.removePluginChunkTicket(loader.chunkX(), loader.chunkZ(), plugin);
                 w.setChunkForceLoaded(loader.chunkX(), loader.chunkZ(), false);
+                if (w.isChunkLoaded(loader.chunkX(), loader.chunkZ())) {
+                    Chunk chunk = w.getChunkAt(loader.chunkX(), loader.chunkZ());
+                    for (BlockState state : chunk.getTileEntities()) {
+                        if (state instanceof CreatureSpawner spawner && spawner.getRequiredPlayerRange() > 16) {
+                            spawner.setRequiredPlayerRange(16);
+                            spawner.update(true, false);
+                        }
+                    }
+                }
             }
         } catch (Exception ignored) {
         }

src/main/java/dev/marcospaulo/canalhandia/VoidProtection.java

@@ -129,6 +129,31 @@ public final class VoidProtection {
                 || mat == Material.SNOW || mat == Material.FERN || mat == Material.LARGE_FERN;
     }
 
+    /**
+     * Calculates the estimated number of inventory slots needed to store the given items.
+     */
+    public static int calculateRequiredSlots(List<ItemStack> items) {
+        if (items == null || items.isEmpty()) {
+            return 0;
+        }
+        int slots = 0;
+        for (ItemStack item : items) {
+            if (item != null && item.getType() != Material.AIR && item.getAmount() > 0) {
+                int maxStack = Math.max(1, item.getMaxStackSize());
+                slots += (int) Math.ceil((double) item.getAmount() / maxStack);
+            }
+        }
+        return slots;
+    }
+
+    public static boolean canFitInSingleChest(List<ItemStack> items) {
+        return calculateRequiredSlots(items) <= 27;
+    }
+
+    public static boolean canFitInDoubleChest(List<ItemStack> items) {
+        return calculateRequiredSlots(items) <= 54;
+    }
+
     /**
      * Stores items into a chest (and an adjacent chest if needed) at the target location.
      * All items must be stored without overflow; on any failure, blocks are rolled back

src/test/java/dev/marcospaulo/canalhandia/ChunkLoaderTest.java

@@ -122,6 +122,12 @@ class ChunkLoaderTest {
         assertEquals(renamed, loaders.find("#1"));
         assertEquals(renamed, loaders.find("1"));
 
+        // Loader 2 named "1" should be prioritized over ID 1 when querying by plain "1"
+        ChunkLoader loader2 = loaders.add("uuid-marcos", "Marcos", "world", 200, 64, 300, "1", 0L);
+        assertEquals(loader2, loaders.find("1"));
+        assertEquals(renamed, loaders.find("#1"));
+        assertEquals(loader2, loaders.find("#2"));
+
         assertTrue(loaders.setEnabled(loader.id(), false));
         ChunkLoader disabled = loaders.byId(loader.id());
         assertNotNull(disabled);

src/test/java/dev/marcospaulo/canalhandia/VoidProtectionTest.java

@@ -37,4 +37,12 @@ class VoidProtectionTest {
         assertFalse(VoidProtection.isSafeGround(null));
         assertFalse(VoidProtection.isReplaceable(null));
     }
+
+    @Test
+    void calculatesRequiredSlotsAndChestFit() {
+        assertEquals(0, VoidProtection.calculateRequiredSlots(null));
+        assertEquals(0, VoidProtection.calculateRequiredSlots(List.of()));
+        assertTrue(VoidProtection.canFitInSingleChest(List.of()));
+        assertTrue(VoidProtection.canFitInDoubleChest(List.of()));
+    }
 }