feat: add version command to devnetd with --long flag

[qj0r9j0vc2]

Summary

• Add shared version package (internal/version) for consistent version output
• Add version command to devnetd daemon
• Update dvb version command with --long flag support
• Update devnet-builder version command with --long flag support

Changes

• New internal/version package: Provides reusable version info with YAML/JSON output
• --long flag: Shows build dependencies like Cosmos SDK apps
• --json flag: Machine-readable JSON output
• Build config: Updated Makefile and .goreleaser.yaml with version ldflags for all binaries

Example Output

devnet-builder version v1.0.0-rc0
  commit:     abc123...
  build date: 2026-01-26T07:31:51Z
  go:         go version go1.24.2 darwin/arm64

With --long:

name: devnet-builder
server_name: devnetd
version: v1.0.0-rc0
commit: abc123...
build_deps:
    - github.com/docker/docker@v28.5.1+incompatible
    - github.com/spf13/cobra@v1.10.2
    ...

Test plan

• make install builds all binaries with version injection
• dvb version shows version info
• devnetd version shows version info
• devnet-builder version shows version info
• --long flag shows build dependencies
• --json flag outputs JSON format