fix(blocks): block_explode keeps attribute text as TEXT (BURST rule) on both engines

virtual_entities() yields geometry only, so an exploded tagged symbol lost
its tag value silently. Every attached ATTRIB now becomes a TEXT at the
same WCS placement/height/rotation/style/layer (invisible stays
invisible), reported as attribute_texts. COM reads GetAttributes before
Explode, deletes the ATTDEF placeholders Explode returns, AddText per
value, and deletes the reference ActiveX Explode leaves behind.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd

discovery/aliases.py

@@ -220,13 +220,15 @@ TOOL_ALIASES: dict[str, ToolAliases] = {
         ),
     ),
     "block_explode": ToolAliases(
-        acad=("EXPLODE",),
+        acad=("EXPLODE", "BURST"),
         synonyms=(
             "explode",
             "break a block apart",
             "ungroup",
             "split a block into entities",
             "flatten a symbol",
+            "burst a block",
+            "explode and keep the attribute text",
         ),
     ),
     "block_find_references": ToolAliases(