fix: correct arch naming and build order for ARM64 packages

- nfpm.yaml: use ${NFPM_ARCH} (Go's ExpandEnv doesn't support :-default)
- arch-helper.sh: export RPM_ARCH (x86_64/aarch64) alongside NFPM_ARCH
- build-rpm/deb.sh: build TypeScript before running tests (tests need
  built @mcpctl/shared), generate Prisma client on fresh checkout
- Fix RPM filename matching to use aarch64 not arm64

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/release.sh

@@ -53,7 +53,10 @@ if command -v dpkg &>/dev/null && ! command -v dnf &>/dev/null; then
   DEB_FILE=$(ls dist/mcpctl*.deb 2>/dev/null | grep -E "[._]${NATIVE_ARCH}[._]" | head -1)
   sudo dpkg -i "$DEB_FILE" || sudo apt-get install -f -y
 else
-  RPM_FILE=$(ls dist/mcpctl-*.rpm 2>/dev/null | grep -E "[._]${NATIVE_ARCH}[._]" | head -1)
+  # RPM filenames use x86_64/aarch64, not amd64/arm64
+  local rpm_arch
+  case "$NATIVE_ARCH" in amd64) rpm_arch="x86_64" ;; arm64) rpm_arch="aarch64" ;; *) rpm_arch="$NATIVE_ARCH" ;; esac
+  RPM_FILE=$(ls dist/mcpctl-*.rpm 2>/dev/null | grep -E "[._]${rpm_arch}[._]" | head -1)
   sudo rpm -U --force "$RPM_FILE"
 fi