Support MiniMessage in welcome sign locale entries

Welcome sign lines sourced from locale files went through the legacy
setLine(String) API, so MiniMessage tags like <red>...</red> were
written verbatim. Parse each line with parseMiniMessageOrLegacy and
write via SignSide.line(int, Component) so both MiniMessage and legacy
color codes render correctly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: tastybento

src/main/java/world/bentobox/bentobox/util/DefaultPasteUtil.java

@@ -382,14 +382,15 @@ private static void writeLocalizedSignText(SignSide signSide, Island island, Lis
             Optional<User> user = Optional.ofNullable(island.getOwner()).map(User::getInstance);
             if (user.isPresent()) {
                 for (int i = 0; i < 4; i++) {
-                    signSide.setLine(i, Util.translateColorCodes(plugin.getLocalesManager().getOrDefault(user.get(),
-                            addonName + ".sign.line" + i, "").replace(TextVariables.NAME, name)));
+                    String raw = plugin.getLocalesManager().getOrDefault(user.get(),
+                            addonName + ".sign.line" + i, "").replace(TextVariables.NAME, name);
+                    signSide.line(i, Util.parseMiniMessageOrLegacy(raw));
                 }
             }
         } else {
             // Just paste
             for (int i = 0; i < 4; i++) {
-                signSide.setLine(i, lines.get(i));
+                signSide.line(i, Util.parseMiniMessageOrLegacy(lines.get(i)));
             }
         }
     }

src/test/java/world/bentobox/bentobox/util/DefaultPasteUtilTest.java

@@ -456,10 +456,10 @@ void testWriteSignNormalPastesLines() {
 
         DefaultPasteUtil.writeSign(island, block, bpBlock, Side.FRONT);
 
-        verify(signSide).setLine(0, "line0");
-        verify(signSide).setLine(1, "line1");
-        verify(signSide).setLine(2, "line2");
-        verify(signSide).setLine(3, "line3");
+        verify(signSide).line(0, Component.text("line0"));
+        verify(signSide).line(1, Component.text("line1"));
+        verify(signSide).line(2, Component.text("line2"));
+        verify(signSide).line(3, Component.text("line3"));
         verify(signSide).setGlowingText(true);
         verify(signState).update();
     }
@@ -477,7 +477,7 @@ void testWriteSignSpawnHereSetsAirAndSpawnPoint() {
         verify(block).setType(Material.AIR);
         verify(island).setSpawnPoint(eq(Environment.NORMAL), any(org.bukkit.Location.class));
         // Normal paste logic must NOT run
-        verify(signSide, never()).setLine(any(Integer.class), anyString());
+        verify(signSide, never()).line(any(Integer.class), any(Component.class));
     }
 
     @Test
@@ -505,7 +505,7 @@ void testWriteSignSpawnHereOnBackSideIgnored() {
         DefaultPasteUtil.writeSign(island, block, bpBlock, Side.BACK);
 
         verify(block, never()).setType(any());
-        verify(signSide).setLine(0, "[spawn_here]");
+        verify(signSide).line(0, Component.text("[spawn_here]"));
     }
 
     @Test
@@ -516,7 +516,7 @@ void testWriteSignSpawnHereNullIslandPastesNormally() {
         DefaultPasteUtil.writeSign(null, block, bpBlock, Side.FRONT);
 
         verify(block, never()).setType(any());
-        verify(signSide).setLine(0, "[spawn_here]");
+        verify(signSide).line(0, Component.text("[spawn_here]"));
     }
 
     @Test
@@ -556,6 +556,6 @@ void testWriteSignWallSignUsesWallSignFacing() {
         DefaultPasteUtil.writeSign(island, block, bpBlock, Side.FRONT);
 
         // Should complete without error (WallSign branch taken)
-        verify(signSide).setLine(0, "text");
+        verify(signSide).line(0, Component.text("text"));
     }
 }