Summary

Create a shared version package with consistent naming for build information.

Current State

cfl (tools/cfl/internal/version/version.go - 9 lines):

var (
    Version = "dev"
    Commit  = "none"
    Date    = "unknown"
)

jtk (tools/jtk/internal/version/version.go - 19 lines):

var (
    Version   = "dev"
    Commit    = "none"
    BuildDate = "unknown"  // Different name!
)

func Full() string { ... }
func Short() string { ... }

Proposed Changes

1. Create shared/version/version.go with standardized variable names
2. Include helper functions (Full(), Short()) from jtk
3. Update ldflags in both tools' build configs to use consistent names
4. Delete tool-specific version packages

Standardized Names

var (
    Version   = "dev"
    Commit    = "none"
    BuildDate = "unknown"
)

Impact

~25 lines consolidated, consistent version output across tools