Исправить production builder для старых CPU без AVX2 и обновить документацию сборки

tools/build/lib/package.sh

@@ -26,11 +26,16 @@ prepare_stage() {
 }
 
 build_orchestrator() {
+  local bun_compile_target="${BUN_COMPILE_TARGET:-bun-linux-x64}"
+
+  log_info "Building orchestrator with Bun compile target: $bun_compile_target"
+
   (
     cd orchestrator
     "$BUN_BIN" install --frozen-lockfile
-    "$BUN_BIN" build src/cli.ts --compile --target=bun-linux-x64 --outfile ../"$STAGE_DIR"/orchestrator/hy2xs-orchestrator
+    "$BUN_BIN" build src/cli.ts --compile --target="$bun_compile_target" --outfile ../"$STAGE_DIR"/orchestrator/hy2xs-orchestrator
   )
+
   chmod 0755 "$STAGE_DIR/orchestrator/hy2xs-orchestrator"
 }
 
@@ -90,6 +95,7 @@ write_metadata() {
     printf 'orchestrator_stack=Bun+TypeScript\n'
     printf 'go_version=%s\n' "$($GO_BIN version)"
     printf 'bun_version=%s\n' "$($BUN_BIN --version)"
+    printf 'bun_compile_target=%s\n' "${BUN_COMPILE_TARGET:-unknown}"
     printf 'node_version=%s\n' "$($NODE_BIN --version)"
     printf 'pnpm_version=%s\n' "$($PNPM_BIN --version)"
     printf 'hysteria_source=official-upstream\n'