fix: unescape corrupted quotes in mempalace __init__.py

The file had literal escaped quotes (backslash-quote) throughout,
causing SyntaxError on import. Replaced with proper quotes.

plugins/memory/mempalace/__init__.py

@@ -172,13 +172,13 @@ class MemPalacePortalProvider(MemoryProvider):
             
         # Extract key facts for Hologram
         if self._hologram_store:
-            # Simple heuristic: look for \"I prefer\", \"The project uses\", etc.
+            # Simple heuristic: look for "I prefer", "The project uses", etc.
             for msg in messages:
-                if msg.get(\"role\") == \"user\":
+                if msg.get("role") == "user":
-                    content = msg.get(\"content\", \"\")
+                    content = msg.get("content", "")
-                    if \"prefer\" in content.lower() or \"use\" in content.lower():
+                    if "prefer" in content.lower() or "use" in content.lower():
                         try:
-                            self._hologram_store.add_fact(content[:200], category=\"user_pref\")
+                            self._hologram_store.add_fact(content[:200], category="user_pref")
                         except Exception:
                             pass