refactor: fix code review findings across all scripts

Critical: stream large file downloads (OOM fix), fix basename match
in auto_fetch, include hashes in pack grouping fingerprint, handle
not_in_zip status in verify, fix escaped quotes in batocera parser.

Important: deduplicate shared group includes, catch coreinfo network
errors, fix NODEDUP path component match, fix CI word splitting on
spaces, replace bare except Exception in 3 files.

Minor: argparse in list_platforms, specific exceptions in download.py.

scripts/generate_readme.py

@@ -34,7 +34,7 @@ def load_platform_configs(platforms_dir: str) -> dict:
             config = load_platform_config(f.stem, platforms_dir)
             if config:
                 configs[f.stem] = config
-        except Exception as e:
+        except (yaml.YAMLError, OSError) as e:
             print(f"Warning: {f.name}: {e}", file=sys.stderr)
     return configs