Install gen-admin-password alongside vetting

proxmox-install.sh + install.sh left operators with no way to
generate the bcrypt hash on the LXC — 'vetting gen-admin-password'
was suggested in the post-install message but the binary has no
subcommands. Cross-build gen-admin-password-linux-amd64 during the
one-liner flow and drop it into /usr/local/bin.

deploy/install.sh

@@ -95,6 +95,20 @@ install -d -m 0755 "${CONFIG_DIR}"
 echo "==> installing binary"
 install -m 0755 "${BINARY}" /usr/local/bin/vetting
 
+# Install the bcrypt password generator too if we can find it — the
+# operator needs it to fill in auth.admin_password_bcrypt.
+GEN_PW=""
+for cand in \
+    "${REPO_ROOT}/bin/gen-admin-password-linux-amd64" \
+    "${REPO_ROOT}/bin/gen-admin-password" \
+    "${SCRIPT_DIR}/gen-admin-password"; do
+    if [[ -x "${cand}" ]]; then GEN_PW="${cand}"; break; fi
+done
+if [[ -n "${GEN_PW}" ]]; then
+    echo "==> installing gen-admin-password"
+    install -m 0755 "${GEN_PW}" /usr/local/bin/gen-admin-password
+fi
+
 echo "==> installing config and systemd unit"
 if [[ ! -f "${CONFIG_DIR}/vetting.yaml" ]]; then
     install -m 0640 -o root -g "${SERVICE_USER}" \
@@ -123,7 +137,7 @@ vetting is installed but not yet enabled.
 
 Next steps:
   1. Edit ${CONFIG_DIR}/vetting.yaml and set:
-       - auth.admin_password_bcrypt  (run: vetting gen-admin-password YOURPW)
+       - auth.admin_password_bcrypt  (run: gen-admin-password 'YOURPW')
        - auth.session_secret_hex     (run: openssl rand -hex 32)
        - server.public_url           (the URL you'll browse to)
        - pxe.* if you want PXE boot support

deploy/proxmox-install.sh

@@ -65,9 +65,9 @@ fi
 echo "==> installing templ ${TEMPL_VERSION}"
 GOBIN=/usr/local/bin go install "github.com/a-h/templ/cmd/templ@${TEMPL_VERSION}"
 
-echo "==> building orchestrator (make orchestrator-linux)"
+echo "==> building orchestrator + gen-admin-password"
 cd "${SRC_DIR}"
-make orchestrator-linux
+make orchestrator-linux gen-admin-password-linux
 
 echo "==> running deploy/install.sh"
 bash deploy/install.sh --binary "bin/vetting-linux-amd64"