CLI: bare global --netuid without value yields misleading Click error

[moorsecopers99]

Description

Severity: S3 (UX — contradicts global-flag docs)

Location: allways/cli/swap_commands/helpers.py — parse_global_flags()

When --netuid appears without a following token, the global-flag stripper does not consume it; it stays on argv, and Click reports No such option: --netuid on the subcommand. Operators expect global flags to work uniformly.

Steps to reproduce

1. alw view rates --netuid (nothing after --netuid)

Expected behaviour

• Clear message such as --netuid requires a value, consistent with --netuid= handling once CLI: validate netuid before int() in get_cli_context #236 lands.

Actual behaviour

• Error: No such option: --netuid.

Screenshots

Fix

• In parse_global_flags, detect --netuid with missing value (or --netuid= with empty RHS) and raise click.UsageError before Click sees unknown options.