Add node docs, collabora purple UI, and portable install env

Human-readable help in all six palette nodes, docs/NODES.md with usage examples, expanded example flows, and auto-detect NODERED_DIR plus CODE bridge IP from .env on any VM.

scripts/integrate-into-nodered.sh

@@ -9,7 +9,8 @@ NODERED_DIR="${NODERED_DIR:-/home/ncadmin/nextcloud-node-red}"
 NODERED_CONTAINER="${NODERED_CONTAINER:-nextcloud-node-red}"
 NODERED_PORT="${NODERED_PORT:-1880}"
 CODE_CONTAINER="${CODE_CONTAINER:-code}"
-COLLABORA_IP="${COLLABORA_IP:-172.17.0.2}"
+COLLABORA_IP="${COLLABORA_IP:-}"
+NEXTCLOUD_URL="${NEXTCLOUD_URL:-https://cloud.hannesahlin.se}"
 MARKER="nextcloud-collabora-nodered"
 
 log() { printf '[integrate] %s\n' "$*"; }
@@ -141,11 +142,66 @@ compose_run() {
     run_as_root env DOCKER_BUILDKIT=1 ${compose} "$@"
 }
 
+code_bridge_ip() {
+    docker inspect -f '{{range $k,$v := .NetworkSettings.Networks}}{{if eq $k "bridge"}}{{$v.IPAddress}}{{end}}{{end}}' "${CODE_CONTAINER}" 2>/dev/null
+}
+
+detect_code_ip() {
+    local ip
+    ip="$(code_bridge_ip)"
+    if [ -n "${ip}" ]; then
+        COLLABORA_IP="${ip}"
+        log "CODE bridge-IP: ${COLLABORA_IP} (container ${CODE_CONTAINER})"
+        return 0
+    fi
+    if [ -n "${COLLABORA_IP}" ]; then
+        warn "Kunde inte läsa bridge-IP — använder COLLABORA_IP=${COLLABORA_IP}"
+        return 0
+    fi
+    die "CODE bridge-IP saknas — sätt COLLABORA_IP eller kontrollera att ${CODE_CONTAINER} kör på Docker bridge"
+}
+
+detect_nodered_dir() {
+    if [ -d "${NODERED_DIR}" ] && [ -f "${NODERED_DIR}/Dockerfile" ]; then
+        return 0
+    fi
+
+    local from_compose
+    from_compose="$(docker inspect -f '{{index .Config.Labels "com.docker.compose.project.working_dir"}}' "${NODERED_CONTAINER}" 2>/dev/null || true)"
+    if [ -n "${from_compose}" ] && [ -f "${from_compose}/Dockerfile" ]; then
+        NODERED_DIR="${from_compose}"
+        log "Node-RED-katalog från compose-label: ${NODERED_DIR}"
+        return 0
+    fi
+
+    for candidate in \
+        "/home/ncadmin/nextcloud-node-red" \
+        "/opt/nextcloud-node-red"; do
+        if [ -f "${candidate}/Dockerfile" ]; then
+            NODERED_DIR="${candidate}"
+            log "Node-RED-katalog hittad: ${NODERED_DIR}"
+            return 0
+        fi
+    done
+
+    die "NODERED_DIR saknas eller ogiltig — sätt sökväg till befintlig nextcloud-node-red (Dockerfile + entrypoint.sh)"
+}
+
 resolve_paths() {
+    if [ -f "${PKG_SRC}/.env" ]; then
+        set -a
+        # shellcheck disable=SC1091
+        . "${PKG_SRC}/.env"
+        set +a
+    fi
+
     if [ "$(id -u)" -eq 0 ] && [ -d "/home/ncadmin/nextcloud-node-red" ]; then
         NODERED_DIR="${NODERED_DIR:-/home/ncadmin/nextcloud-node-red}"
         PKG_SRC="${PKG_SRC:-/home/ncadmin/nextcloud-collabora-nodered}"
     fi
+
+    detect_nodered_dir
+    detect_code_ip
 }
 
 stop_sidecar_if_any() {
@@ -293,10 +349,6 @@ wait_nodered() {
     warn "Node-RED svarade inte inom 60 s"
 }
 
-code_bridge_ip() {
-    docker inspect -f '{{range $k,$v := .NetworkSettings.Networks}}{{if eq $k "bridge"}}{{$v.IPAddress}}{{end}}{{end}}' "${CODE_CONTAINER}" 2>/dev/null
-}
-
 verify_code_from_nodered() {
     local code_ip
     code_ip="$(code_bridge_ip)"
@@ -328,21 +380,26 @@ main() {
     wait_nodered
     verify_code_from_nodered
 
-    local host_ip
+    local host_ip code_ip nc_url
     host_ip="$(hostname -I 2>/dev/null | awk '{print $1}' || echo "127.0.0.1")"
+    code_ip="$(code_bridge_ip)"
+    [ -n "${code_ip}" ] || code_ip="${COLLABORA_IP}"
+    nc_url="${NEXTCLOUD_URL:-https://cloud.hannesahlin.se}"
 
     cat <<EOF
 
 Integrering klar — samma Node-RED på port ${NODERED_PORT}
   UI: http://${host_ip}:${NODERED_PORT}
-  Noder: nc-collab-config, collabora-bridge, nc-office, ...
+  Noder: palett "nextcloud collabora" (6 st + config)
 
-Nästa steg:
-  1. nc-collab-config → app-lösenord, collaboraUrl=https://172.17.0.2:9980 (verifyTls=false)
-  2. Importera flows/example-flows.json från ${PKG_SRC} (valfritt)
-  3. Test: capabilities → ncFileToPdf
+Skapa config först (kugghjul → nc-collab-config):
+  Nextcloud:     ${nc_url}
+  Collabora:     https://${code_ip}:9980  (verifyTls=false)
+  Publik WOPI:   ${nc_url}
+  Auth:          användarnamn + app-lösenord
 
-Ingen ny container skapad. odds-scraper orörd.
+Testa: collabora-wopi (capabilities) → collabora-bridge (ncFileToPdf)
+Exempelflöde: flows/example-flows.json
 
 EOF
 }