Fixes #81 - wrong app var name for python expose

[DavidSeptimus-Klotho]

Fixes #81 by changing the AppVarName value set in the gateway spec back from Capability.ID to the name of the exported variable associated with the annotated FastAPI app.

compiled output for py-microservices Output after change:

Standard checks

• Unit tests: Any special considerations?
• Docs: Do we need to update any docs, internal or public?
• Backwards compatibility: Will this break existing apps? If so, what would be the extra work required to keep them working?

[ewucc]

I think this is going to break the resource validation though. iirc, the resource validation is looking for a gateway with a given gateway ID as the name

[ewucc]

So that might have been why this became an issue, the name was changed to fix the resource validation issue but then caused a regression w/ proxy calls

[jhsinger-klotho]

yeah same comment as below

[jhsinger-klotho]

isnt this going to result in validation to fail again. On line 130 we call

		gw := core.NewGateway(spec.AppVarName)

so then wont this not match our ID? other gatewayspecs have an id field so we can track it so i dont think this prevents the warning from popping up

[DavidSeptimus-Klotho]

yeah, I just went back and added gatewayId to the spec and updated this line to use that value.

[github-actions]

Package	Line Rate	Health
github.com/klothoplatform/klotho/pkg/analytics	2%	❌
github.com/klothoplatform/klotho/pkg/annotation	24%	❌
github.com/klothoplatform/klotho/pkg/core	20%	❌
github.com/klothoplatform/klotho/pkg/env_var	82%	✔
github.com/klothoplatform/klotho/pkg/exec_unit	45%	❌
github.com/klothoplatform/klotho/pkg/infra/kubernetes	58%	➖
github.com/klothoplatform/klotho/pkg/infra/kubernetes/helm	52%	➖
github.com/klothoplatform/klotho/pkg/input	63%	➖
github.com/klothoplatform/klotho/pkg/lang	37%	❌
github.com/klothoplatform/klotho/pkg/lang/dockerfile	0%	❌
github.com/klothoplatform/klotho/pkg/lang/golang	9%	❌
github.com/klothoplatform/klotho/pkg/lang/javascript	47%	❌
github.com/klothoplatform/klotho/pkg/lang/python	60%	➖
github.com/klothoplatform/klotho/pkg/lang/yaml	0%	❌
github.com/klothoplatform/klotho/pkg/logging	7%	❌
github.com/klothoplatform/klotho/pkg/multierr	95%	✔
github.com/klothoplatform/klotho/pkg/provider/aws	60%	➖
github.com/klothoplatform/klotho/pkg/runtime	75%	✔
github.com/klothoplatform/klotho/pkg/static_unit	32%	❌
github.com/klothoplatform/klotho/pkg/validation	73%	➖
Summary	42% (3592 / 8587)	❌