feat: fabledscryer→roundtable import alias shim

Meta path finder redirects fabledscryer[.*] imports to roundtable[.*],
keeping unmodified plugin repos working during the rebrand transition.

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

roundtable/__init__.py

@@ -1 +1,39 @@
 __version__ = "0.1.0"
+
+# Compatibility shim: allow `import fabledscryer[.x.y]` to resolve to
+# `roundtable[.x.y]`. Lets unmodified plugin repos keep working during the
+# rebrand transition. Remove once all plugins migrate to `roundtable`.
+import sys as _sys
+import importlib as _importlib
+import importlib.abc as _abc
+import importlib.util as _util
+
+_ALIAS = "fabledscryer"
+
+
+class _RoundtableAliasLoader(_abc.Loader):
+    def __init__(self, real_name):
+        self._real_name = real_name
+
+    def create_module(self, spec):
+        return _importlib.import_module(self._real_name)
+
+    def exec_module(self, module):
+        pass
+
+
+class _RoundtableAliasFinder(_abc.MetaPathFinder):
+    def find_spec(self, fullname, path=None, target=None):
+        if fullname != _ALIAS and not fullname.startswith(_ALIAS + "."):
+            return None
+        real_name = "roundtable" + fullname[len(_ALIAS):]
+        if _util.find_spec(real_name) is None:
+            return None
+        return _util.spec_from_loader(
+            fullname, _RoundtableAliasLoader(real_name)
+        )
+
+
+if not any(isinstance(f, _RoundtableAliasFinder) for f in _sys.meta_path):
+    _sys.meta_path.insert(0, _RoundtableAliasFinder())
+_sys.modules.setdefault(_ALIAS, _sys.modules[__name__])