fix(ops): 自愈 goosed 会话 PostgreSQL，防止 H5 卡在创建新对话

103 Colima goosed 依赖宿主机 postgresql@17；库停止时 /agent/start 会 pool timeout 约 60s。新增 ensure 脚本、接入监控与发布前检查，并补充拓扑文档。

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/ensure-goose-session-postgres.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# 103 Colima goosed 通过 host.docker.internal:5432 访问本机 PostgreSQL。
+# 该库停止时，/agent/start 会在约 60s 后返回 pool timeout，H5 会卡在「正在创建新对话…」。
+export PATH="/opt/homebrew/bin:/opt/homebrew/opt/postgresql@17/bin:${PATH:-/usr/bin:/bin}"
+
+PGDATA="${GOOSE_SESSION_PGDATA:-/opt/homebrew/var/postgresql@17}"
+PG_LOG="${GOOSE_SESSION_PG_LOG:-${HOME}/Library/Logs/postgresql@17.log}"
+PG_HOST="${GOOSE_SESSION_PG_HOST:-127.0.0.1}"
+PG_PORT="${GOOSE_SESSION_PG_PORT:-5432}"
+
+if pg_isready -h "${PG_HOST}" -p "${PG_PORT}" -q 2>/dev/null; then
+  exit 0
+fi
+
+echo "$(date -u +%Y-%m-%dT%H:%M:%SZ) goose session postgres not ready; starting (${PGDATA})"
+mkdir -p "$(dirname "${PG_LOG}")"
+pg_ctl -D "${PGDATA}" -l "${PG_LOG}" start 2>/dev/null || true
+sleep 2
+
+if pg_isready -h "${PG_HOST}" -p "${PG_PORT}" -q 2>/dev/null; then
+  echo "$(date -u +%Y-%m-%dT%H:%M:%SZ) goose session postgres ready"
+  exit 0
+fi
+
+echo "$(date -u +%Y-%m-%dT%H:%M:%SZ) goose session postgres still down (${PG_HOST}:${PG_PORT})" >&2
+exit 1