Describe the bug
It seems tenv only scans terraform files in the current directory.

If all such files are in a tf subdirectory say, with a tf/.terraform-version of min-required and tf/providers.tf having terraform { required_version = "~> 1.5" }, then:

$terraform -chdir=tf version
Resolved version from .terraform-version : min-required
Scan project to find IAC files
No Terraform version requirement found in project files, fallback to latest strategy
[...]

(note also that that requires .terraform-version in $PWD - it won't find that from the -chdir either)

Even without -chdir, if there's additionally a tf/module/providers.tf with a terraform { required_version = "~> 1.9" } say, then:

$cd tf && terraform version
Resolved version from [..]/.terraform-version : min-required
Scan project to find IAC files
No compatible version found locally, search a remote one...
Fetching all releases information from https://releases.hashicorp.com/terraform/index.json
Found compatible version remotely : 1.5.0
Installing Terraform 1.5.0

ignoring the 1.9 requirement.

To Reproduce
Described above

Expected behavior
1.9.0 installed in both cases, with or without -chdir, 1.5.0 is not compatible.

Screenshots
N/A

Environment (please complete the following information):

• OS: [e.g. iOS] macOS (iOS?!)
• tofuenv tenv version [e.g. 0.8.0] 3.1.0

Additional context
N/A