Accept check_iso flag on generate_network action

[wshlavacek]

Summary

`check_iso` is a real BNG2.pl flag (`Perl2/SpeciesList.pm`, `Perl2/RxnRule.pm`) that controls canonical-isomorphism checking when adding species. The modelapi action allowlist in `ActionList.arg_dict` is missing it, so any model that uses `generate_network({check_iso=>1, ...})` fails at parse time with:

```
Action argument check_iso not recognized for action generate_network!
```

before BNG2.pl is ever invoked.

Fix

One-line addition: `"check_iso"` joins the existing list of accepted args for `generate_network` in `bionetgen/core/utils/utils.py`.

Test plan

• Existing CI passes
• Round-trip a model containing `generate_network({check_iso=>1, max_stoich=>{...}})` no longer raises `Action argument check_iso not recognized`

[wshlavacek]

Summary

`check_iso` is a real BNG2.pl flag (`Perl2/SpeciesList.pm`, `Perl2/RxnRule.pm`) that controls canonical-isomorphism checking when adding species. The modelapi action allowlist in `ActionList.arg_dict` is missing it, so any model that uses `generate_network({check_iso=>1, ...})` fails at parse time with:

```
Action argument check_iso not recognized for action generate_network!
```

before BNG2.pl is ever invoked.

Fix

One-line addition: `"check_iso"` joins the existing list of accepted args for `generate_network` in `bionetgen/core/utils/utils.py`.

Test plan

• Existing CI passes
• Round-trip a model containing `generate_network({check_iso=>1, max_stoich=>{...}})` no longer raises `Action argument check_iso not recognized`

[wshlavacek]

Summary

`check_iso` is a real BNG2.pl flag (`Perl2/SpeciesList.pm`, `Perl2/RxnRule.pm`) that controls canonical-isomorphism checking when adding species. The modelapi action allowlist in `ActionList.arg_dict` is missing it, so any model that uses `generate_network({check_iso=>1, ...})` fails at parse time with:

```
Action argument check_iso not recognized for action generate_network!
```

before BNG2.pl is ever invoked.

Fix

One-line addition: `"check_iso"` joins the existing list of accepted args for `generate_network` in `bionetgen/core/utils/utils.py`.

Test plan

• Existing CI passes
• Round-trip a model containing `generate_network({check_iso=>1, max_stoich=>{...}})` no longer raises `Action argument check_iso not recognized`

[wshlavacek]

Summary

`check_iso` is a real BNG2.pl flag (`Perl2/SpeciesList.pm`, `Perl2/RxnRule.pm`) that controls canonical-isomorphism checking when adding species. The modelapi action allowlist in `ActionList.arg_dict` is missing it, so any model that uses `generate_network({check_iso=>1, ...})` fails at parse time with:

```
Action argument check_iso not recognized for action generate_network!
```

before BNG2.pl is ever invoked.

Fix

One-line addition: `"check_iso"` joins the existing list of accepted args for `generate_network` in `bionetgen/core/utils/utils.py`.

Test plan

• Existing CI passes
• Round-trip a model containing `generate_network({check_iso=>1, max_stoich=>{...}})` no longer raises `Action argument check_iso not recognized`

[wshlavacek]

Summary

`check_iso` is a real BNG2.pl flag (`Perl2/SpeciesList.pm`, `Perl2/RxnRule.pm`) that controls canonical-isomorphism checking when adding species. The modelapi action allowlist in `ActionList.arg_dict` is missing it, so any model that uses `generate_network({check_iso=>1, ...})` fails at parse time with:

```
Action argument check_iso not recognized for action generate_network!
```

before BNG2.pl is ever invoked.

Fix

One-line addition: `"check_iso"` joins the existing list of accepted args for `generate_network` in `bionetgen/core/utils/utils.py`.

Test plan

• Existing CI passes
• Round-trip a model containing `generate_network({check_iso=>1, max_stoich=>{...}})` no longer raises `Action argument check_iso not recognized`

[wshlavacek]

Summary

`check_iso` is a real BNG2.pl flag (`Perl2/SpeciesList.pm`, `Perl2/RxnRule.pm`) that controls canonical-isomorphism checking when adding species. The modelapi action allowlist in `ActionList.arg_dict` is missing it, so any model that uses `generate_network({check_iso=>1, ...})` fails at parse time with:

```
Action argument check_iso not recognized for action generate_network!
```

before BNG2.pl is ever invoked.

Fix

One-line addition: `"check_iso"` joins the existing list of accepted args for `generate_network` in `bionetgen/core/utils/utils.py`.

Test plan

• Existing CI passes
• Round-trip a model containing `generate_network({check_iso=>1, max_stoich=>{...}})` no longer raises `Action argument check_iso not recognized`

[wshlavacek]

Summary

`check_iso` is a real BNG2.pl flag (`Perl2/SpeciesList.pm`, `Perl2/RxnRule.pm`) that controls canonical-isomorphism checking when adding species. The modelapi action allowlist in `ActionList.arg_dict` is missing it, so any model that uses `generate_network({check_iso=>1, ...})` fails at parse time with:

```
Action argument check_iso not recognized for action generate_network!
```

before BNG2.pl is ever invoked.

Fix

One-line addition: `"check_iso"` joins the existing list of accepted args for `generate_network` in `bionetgen/core/utils/utils.py`.

Test plan

• Existing CI passes
• Round-trip a model containing `generate_network({check_iso=>1, max_stoich=>{...}})` no longer raises `Action argument check_iso not recognized`

[wshlavacek]

Summary

`check_iso` is a real BNG2.pl flag (`Perl2/SpeciesList.pm`, `Perl2/RxnRule.pm`) that controls canonical-isomorphism checking when adding species. The modelapi action allowlist in `ActionList.arg_dict` is missing it, so any model that uses `generate_network({check_iso=>1, ...})` fails at parse time with:

```
Action argument check_iso not recognized for action generate_network!
```

before BNG2.pl is ever invoked.

Fix

One-line addition: `"check_iso"` joins the existing list of accepted args for `generate_network` in `bionetgen/core/utils/utils.py`.

Test plan

• Existing CI passes
• Round-trip a model containing `generate_network({check_iso=>1, max_stoich=>{...}})` no longer raises `Action argument check_iso not recognized`