Phase 1: 실동작 Enduro/X + PostgreSQL XA 매입 슬라이스

- Enduro/X 7.0.12 소스빌드 이미지(-DENABLE_POSTGRES=ON, libndrxxaecpg XA 스위치)
- docker-compose: postgres(max_prepared_transactions=100) + endurox app
- ECPG XA 서비스 3종: ACQUIRE→RECONCILE→SETTLE (tpservice + EXEC SQL)
- 클라이언트 tpbegin/tpcall체인/tpcommit → tmsrv 2PC(prepare/commit) 원자 커밋
- 검증: 서비스 AVAIL, 커밋 row(status=S) psql 확인, 롤백 시 무잔존, pg_prepared_xacts=0
- 규명된 런타임 요건: sysctl fs.mqueue.*, ulimit msgqueue/nofile, XA open-str JSON
- docs/architecture.md, README, service-catalog 설계

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/entrypoint.sh

@@ -0,0 +1,75 @@
+#!/bin/bash
+##
+## Build + boot the Enduro/X acquiring slice, then stay alive.
+## Runs inside the app container (image acquire-x/endurox:7.0.12).
+##
+set -e
+
+. /app/conf/setapp.sh
+
+echo "=================================================================="
+echo " acquire-core-x : build + boot"
+echo "=================================================================="
+
+# runtime dirs
+mkdir -p /app/log /app/tmp /app/tmlogs/rm1 /app/bin
+rm -f /app/log/*.log 2>/dev/null || true
+
+# ensure posix mqueue is available (compose provides the sysctls/ulimits)
+if [ ! -d /dev/mqueue ]; then
+    mkdir -p /dev/mqueue
+    mount -t mqueue none /dev/mqueue 2>/dev/null || true
+fi
+
+# ---------------------------------------------------------------------------
+# 1. UBF field header from the field table
+# ---------------------------------------------------------------------------
+echo "--- mkfldhdr acq.fd ---"
+cd /app/ubftab
+FIELDTBLS=acq.fd FLDTBLDIR=/app/ubftab mkfldhdr acq.fd
+ls -l /app/ubftab/acq.fd.h
+
+# ---------------------------------------------------------------------------
+# 2. ECPG precompile + buildserver each .pgc  (XA switch loaded via env, so
+#    buildserver needs no -r; we just link ecpg + pq). buildclient the driver.
+# ---------------------------------------------------------------------------
+export CFLAGS="-I/app/ubftab -I/app/src -I$(pg_config --includedir)"
+PGLIB="-L$(pg_config --libdir) -lecpg -lpq"
+
+cd /app/src
+build_svc () {
+    local src="$1" bin="$2"
+    echo "--- ecpg $src ---"
+    ecpg -I/app/ubftab -o "/app/src/${src%.pgc}.c" "/app/src/$src"
+    echo "--- buildserver -> $bin ---"
+    buildserver -o "/app/bin/$bin" -f "/app/src/${src%.pgc}.c" -a "$PGLIB"
+}
+
+build_svc acquire.pgc   acqacquire
+build_svc reconcile.pgc acqreconcile
+build_svc settle.pgc    acqsettle
+
+echo "--- buildclient -> acqdrv ---"
+buildclient -o /app/bin/acqdrv -f /app/src/acqdrv.c
+
+ls -l /app/bin
+
+# ---------------------------------------------------------------------------
+# 3. Boot Enduro/X
+# ---------------------------------------------------------------------------
+echo "--- xadmin down/start ---"
+xadmin down -y 2>/dev/null || true
+xadmin start -y
+
+echo "--- xadmin psc (advertised services) ---"
+xadmin psc
+echo "--- xadmin ppm (processes) ---"
+xadmin ppm
+
+echo "=================================================================="
+echo " acquire-core-x : UP. Run the driver with:"
+echo "   docker compose -f docker/docker-compose.yml exec app /app/run-driver.sh"
+echo "=================================================================="
+
+# keep the container (and the ndrxd daemon) alive
+tail -F /app/log/ndrxd.log