convert built-in scans to yaml modules

[vmfunc]

overview

currently sif has two systems for running scans:

1. yaml modules - new modular system in modules/ directory
2. go scans - legacy scans in internal/scan/

the goal is to eventually convert most go scans to yaml modules for consistency and user extensibility.

scans to convert

these go scans could be converted to yaml modules:

• headers.go → modules/http/headers.yaml
• cms.go → modules/info/cms.yaml
• git.go → modules/recon/git.yaml (partially done with git-exposed.yaml)
• dirlist.go → modules/recon/dirlist.yaml
• dnslist.go → modules/dns/dnslist.yaml
• cloudstorage.go → modules/recon/cloudstorage.yaml
• sql.go → enhance existing sqli modules
• lfi.go → enhance existing lfi module

scans to keep as go

these are better suited as go code due to complexity:

• shodan.go - api integration with external service
• nuclei.go - external tool integration
• whois.go - external lookups
• ports.go - tcp scanning requires low-level networking
• frameworks/ - complex detection logic with version parsing

the go scans that stay should still be registered as modules in the module system so they show up in --list-modules and can be run with --modules flags.

[0x4bs3nt]

I assume its fine to separate the tasks to multiple PRs?

If so, I can start working on this, feel free to assign.