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/build-rpm.sh

@@ -23,13 +23,19 @@ resolve_arch "${MCPCTL_TARGET_ARCH:-}"
 source "$SCRIPT_DIR/ensure-deps.sh"
 ensure_build_deps
 
-echo "==> Running unit tests..."
-pnpm test:run
-echo ""
+# Generate Prisma client if missing (fresh checkout)
+if [ ! -d src/db/node_modules/.prisma ]; then
+  echo "==> Generating Prisma client..."
+  pnpm --filter @mcpctl/db exec prisma generate
+fi
 
 echo "==> Building TypeScript..."
 pnpm build
 
+echo "==> Running unit tests..."
+pnpm test:run
+echo ""
+
 echo "==> Generating shell completions..."
 pnpm completions:generate
 
@@ -37,7 +43,7 @@ echo "==> Bundling standalone binaries (target: ${NFPM_ARCH})..."
 mkdir -p dist
 rm -f "dist/mcpctl${ARCH_SUFFIX}" "dist/mcpctl-local${ARCH_SUFFIX}"
 # Only remove RPMs for the target arch (preserve cross-compiled packages)
-ls dist/mcpctl-*.${NFPM_ARCH}.rpm 2>/dev/null | xargs -r rm -f
+ls dist/mcpctl-*.${RPM_ARCH}.rpm 2>/dev/null | xargs -r rm -f
 
 # Ink optionally imports react-devtools-core which isn't installed.
 # Provide a no-op stub so bun can bundle it (it's only invoked when DEV=true).
@@ -58,7 +64,7 @@ echo "==> Packaging RPM (arch: ${NFPM_ARCH})..."
 export NFPM_ARCH
 nfpm pkg --packager rpm --target dist/
 
-RPM_FILE=$(ls dist/mcpctl-*.${NFPM_ARCH}.rpm 2>/dev/null | head -1)
+RPM_FILE=$(ls dist/mcpctl-*.${RPM_ARCH}.rpm 2>/dev/null | head -1)
 echo "==> Built: $RPM_FILE"
 echo "    Size: $(du -h "$RPM_FILE" | cut -f1)"
 if command -v rpm &>/dev/null; then