core/cli is now a pure library (pkg/cli). The binary moves to
cmd/core/ as a separate sub-module with its own go.mod.
Removed from binary: gocmd (→ lint/go-build), service (→ go-process),
session (→ go-session), module (→ go-scm), plugin (→ go-scm).
Removed from framework: go-crypt, workspace, daemon_cmd.
Root go.mod: 1 direct forge dep (core/go). Cross-compiles CGO_ENABLED=0.
Co-Authored-By: Virgil <virgil@lethean.io>