Warn when --verbose-types is passed without a --list-* flag

[elhoim]

Finding 45 (Low) — bin/cli.py:792-796

Problem

--verbose-types is accepted in every mode but only consumed by list_supported_types/list_active_modules; in the normal query path it changes nothing except forcing the describeTypes fetch condition true, with no warning.

Fix

Finding #45 (verbose-types-inert, low severity): --verbose-types was accepted by argparse in every mode but only consumed by list_supported_types/list_active_modules. In the normal (non-list) query path, passing it had no effect other than forcing the describeTypes fetch condition true, with no indication to the user that the flag did nothing. Fix: added a check right after arg parsing in main() that emits a stderr warning ("[!] --verbose-types has no effect without --list-supported-types or --list-active-modules") when --verbose-types is passed without either --list-supported-types or --list-active-modules. Minimal 6-line addition, no other behavior changed.

Verification

Reproduced against the unmodified code at 9b8c605, then re-checked after the change.

Before

$ python3 bin/cli.py --verbose-types --url http://localhost:9999
STDOUT: (empty)
STDERR: [!] Unable to fetch module introspection from http://localhost:9999/modules: ...Connection refused...
(No indication that --verbose-types was ignored/inert in this mode.)

After

$ python3 bin/cli.py --verbose-types --url http://localhost:9999
STDOUT: (empty)
STDERR: [!] --verbose-types has no effect without --list-supported-types or --list-active-modules
[!] Unable to fetch module introspection from http://localhost:9999/modules: ...Connection refused...
(Warning now printed before the module-fetch attempt.)

python bin/cli.py --help exits 0 and the module still imports cleanly. Verification was performed offline against the pure functions — no running misp-modules instance is required.

Branched from 9b8c605. This PR addresses only this finding; the other findings from the same review are in separate PRs, so they will need rebasing against each other as they merge.

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https://claude.ai/code/session_01DYX4TKA5inzByJ4qGWKjqh