refactor: separated command script

bin/railiance

@@ -1,62 +1,46 @@
 #!/usr/bin/env bash
-# bin/railiance — Rails-style CLI entrypoint for Railiance
+# bin/railiance — thin dispatcher; subcommands live in tools/cmd/*
 set -euo pipefail
 
 ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+PATH="${ROOT}/tools/cmd:${PATH}"
 
 usage() {
   cat <<'EOF'
-Usage: bin/railiance <command>
+Usage: bin/railiance <command> [args]
 
 Commands:
+  doctor        Check workstation & provisioning toolchains
   next          Show canonical first-time sequence
-  doctor        Check local prerequisites (git, curl, jq, ansible)
-  plan-host     Print provider-neutral host specs & checklist
-  gen-ssh-key   Generate an SSH key (ed25519) and print pubkey
+  plan-host     Provider-neutral host specs & checklist
+  gen-ssh-key   Generate SSH key and show public part
   cloudinit     Emit minimal cloud-init user-data
   init-repo     Idempotently furnish repo housekeeping
   build-spore   Build a distributable "Spore" bundle
   seed-local    Run the seed script on this machine
-  checklist     Print a pre-VM checklist
+  checklist     Pre-VM checklist
   help          Show this help
 EOF
 }
 
-cmd="${1:-help}"
-
-need(){ command -v "$1" >/dev/null 2>&1 || { echo "Missing: $1" >&2; exit 1; }; }
+cmd="${1:-help}"; shift || true
 
 case "$cmd" in
   help) usage ;;
-  next) cat "$ROOT/docs/first_host.md" ;;
-  doctor)
-    for c in git curl jq; do
-      command -v "$c" >/dev/null && echo "OK: $c" || { echo "Missing: $c"; exit 1; }
-    done
-    command -v ansible >/dev/null && echo "OK: ansible" || echo "Note: ansible not found (only needed for host bootstrap)"
-    ;;
+  doctor) exec railiance-doctor "$@" ;;
   plan-host)
     sed -n '1,200p' "$ROOT/docs/first_host.md" | sed -n '/^## 2\) Choose/,/^## 3\)/p'
     ;;
   gen-ssh-key)
-    need ssh-keygen
+    if ! command -v ssh-keygen >/dev/null 2>&1; then echo "Missing: ssh-keygen" >&2; exit 1; fi
     key="${HOME}/.ssh/id_ed25519"
     [[ -f "$key" ]] || ssh-keygen -t ed25519 -N "" -f "$key"
-    echo "Public key:"
-    cat "${key}.pub"
+    echo "Public key:"; cat "${key}.pub"
     ;;
   cloudinit) cat "$ROOT/cloudinit/user-data.yaml" ;;
   init-repo) bash "$ROOT/tools/furnish_railiance_repo.sh" ;;
   build-spore) bash "$ROOT/tools/build_spore.sh" ;;
   seed-local) bash "$ROOT/tools/seed_node.sh" ;;
-  init-inventory) 
-    if [[ -f "$ROOT/ansible/hosts.ini" ]]; then
-      echo "ansible/hosts.ini already exists."
-    else
-      cp "$ROOT/ansible/hosts.ini.example" "$ROOT/ansible/hosts.ini"
-      echo "Created ansible/hosts.ini from example."
-    fi
-    ;;
   checklist)
     cat <<'CK'
 Rent-a-VM Checklist
@@ -66,11 +50,11 @@ Rent-a-VM Checklist
 [ ] Image: Ubuntu 24.04 LTS
 [ ] Size: 2 vCPU / 4–8 GB RAM / 60+ GB SSD
 [ ] SSH key uploaded (see gen-ssh-key)
-   - Run: bin/railiance gen-ssh-key
 [ ] Cloud-init pasted (see: bin/railiance cloudinit)
 [ ] Hostname set (e.g., railiance-seed-1)
 [ ] Record public IP / DNS
 CK
     ;;
-  *) usage; exit 2 ;;
+  next) cat "$ROOT/QUICKSTART.md" ;;
+  *) echo "Unknown command: $cmd" >&2; usage; exit 2 ;;
 esac