fix(epf-dump): require database connection, remove auto-create empty base

Dump in an empty database irreversibly loses reference types (CatalogRef,
DocumentRef, etc.) — they get converted to xs:string. Instead of silently
creating an empty temp database, the script now exits with an error
explaining that a real database is required.

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

.claude/skills/epf-dump/scripts/epf-dump.py

@@ -58,21 +58,11 @@ def main():
     # --- Resolve V8Path ---
     v8path = resolve_v8path(args.V8Path)
 
-    # --- Auto-create empty database if no connection specified ---
-    auto_created_base = None
+    # --- Validate database connection ---
     if not args.InfoBasePath and (not args.InfoBaseServer or not args.InfoBaseRef):
-        auto_base_path = os.path.join(tempfile.gettempdir(), f"epf_dump_db_{random.randint(0, 999999)}")
-        print("No database specified. Creating temporary empty database...")
-        print("WARNING: Reference types (CatalogRef, DocumentRef, etc.) will be lost - converted to strings. Use a real database to preserve types.")
-        result = subprocess.run(
-            [v8path, "CREATEINFOBASE", f'File={auto_base_path}', "/DisableStartupDialogs"],
-            capture_output=True, text=True,
-        )
-        if result.returncode != 0:
-            print("Error: failed to create temporary database", file=sys.stderr)
-            sys.exit(1)
-        args.InfoBasePath = auto_base_path
-        auto_created_base = auto_base_path
+        print("Error: database connection required. Specify -InfoBasePath or -InfoBaseServer/-InfoBaseRef", file=sys.stderr)
+        print("Dump in an empty database loses reference types (CatalogRef, DocumentRef, etc.) irreversibly.")
+        sys.exit(1)
 
     # --- Validate input file ---
     if not os.path.isfile(args.InputFile):
@@ -140,8 +130,6 @@ def main():
     finally:
         if os.path.exists(temp_dir):
             shutil.rmtree(temp_dir, ignore_errors=True)
-        if auto_created_base and os.path.exists(auto_created_base):
-            shutil.rmtree(auto_created_base, ignore_errors=True)
 
 
 if __name__ == "__main__":