Rebrand Pinscope to Periscope across product and codebase.

Rename the core package to periscopex, update UI/docs/Docker/deploy defaults to periscope.michelebigi.it, and keep legacy version/storage key aliases so existing projects keep working.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/services/llm/local_skill.py

@@ -62,7 +62,7 @@ def load_skill_validator(skill_name: str):
     if not path.is_file():
         return None
     spec = importlib.util.spec_from_file_location(
-        f"pinscope_skill_{skill_name.replace('-', '_')}_validate", path,
+        f"periscope_skill_{skill_name.replace('-', '_')}_validate", path,
     )
     if spec is None or spec.loader is None:
         return None