feat(docker): add standalone mode and external orchestration support

- Add --standalone flag to use self-contained bitcoind/lnd
- Default to unified mode using shared regtest
- Track compose mode in state file for down/logs/reset
- Add _setup_after_start internal command for external orchestration
- Update help text with new options

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker/dev.sh

@@ -8,7 +8,8 @@
 #   - Auto-configured ATM application
 #
 # Usage:
-#   ./dev.sh up                              # Start everything
+#   ./dev.sh up                              # Start (uses shared regtest)
+#   ./dev.sh up --standalone                 # Start self-contained (own bitcoind/lnd)
 #   ./dev.sh up --fund                       # Start and auto-fund ATM with 100k sats
 #   ./dev.sh up --fund=50000                 # Start and auto-fund with specific amount
 #   ./dev.sh up --machine                    # Start and launch ATM app
@@ -38,6 +39,17 @@ PUBKEY_FILE="$STATE_DIR/lightning-pub-pubkey"
 NPROFILE_FILE="$STATE_DIR/lightning-pub-nprofile"
 APP_TOKEN_FILE="$STATE_DIR/atm-app-token"
 APP_ID_FILE="$STATE_DIR/atm-app-id"
+MODE_FILE="$STATE_DIR/compose-mode"  # "standalone" or "unified"
+
+# Get current compose file based on last used mode
+get_compose_file() {
+    local mode=$(cat "$MODE_FILE" 2>/dev/null || echo "unified")
+    if [[ "$mode" == "standalone" ]]; then
+        echo "docker-compose.dev.yml"
+    else
+        echo "docker-compose.regtest.yml"
+    fi
+}
 
 # Colors
 GREEN='\033[0;32m'
@@ -363,6 +375,8 @@ cmd_up() {
     local auto_fund=false
     local fund_amount="$DEFAULT_FUNDING_SATS"
     local launch_machine=false
+    local standalone=false
+    local compose_file="docker-compose.regtest.yml"
 
     # Parse arguments
     while [[ $# -gt 0 ]]; do
@@ -370,6 +384,7 @@ cmd_up() {
             --image) image="$2"; shift 2 ;;
             --worktree) worktree="$2"; shift 2 ;;
             --skip-regtest) skip_regtest=true; shift ;;
+            --standalone) standalone=true; shift ;;
             --fund) auto_fund=true; shift ;;
             --fund=*) auto_fund=true; fund_amount="${1#*=}"; shift ;;
             --machine|--atm) launch_machine=true; shift ;;
@@ -377,18 +392,27 @@ cmd_up() {
         esac
     done
 
+    # Determine compose file
+    if [[ "$standalone" == "true" ]]; then
+        compose_file="docker-compose.dev.yml"
+        skip_regtest=true  # Standalone mode has its own bitcoind/lnd
+        log "Starting in STANDALONE mode (self-contained bitcoind/lnd)"
+    else
+        log "Starting in UNIFIED mode (shared regtest)"
+    fi
+
     echo ""
     log "Starting Lamassu development environment..."
     echo ""
 
-    # 1. Start regtest if needed
+    # 1. Start shared regtest if needed (not in standalone mode)
-    if [[ "$skip_regtest" != "true" ]]; then
+    if [[ "$standalone" != "true" ]] && [[ "$skip_regtest" != "true" ]]; then
         start_regtest || exit 1
-    else
+    elif [[ "$standalone" != "true" ]] && ! is_regtest_running; then
-        if ! is_regtest_running; then
+        error "Shared regtest not running."
-            error "Regtest not running. Remove --skip-regtest or start it manually."
+        echo "  Start with: regtest-start"
-            exit 1
+        echo "  Or use:     ./dev.sh up --standalone"
-        fi
+        exit 1
     fi
 
     # 2. Build from worktree if specified
@@ -413,8 +437,15 @@ cmd_up() {
     export LIGHTNING_PUB_IMAGE="$image"
     export HOST_IP=$(get_local_ip)
 
+    # Save mode for other commands
+    if [[ "$standalone" == "true" ]]; then
+        echo "standalone" > "$MODE_FILE"
+    else
+        echo "unified" > "$MODE_FILE"
+    fi
+
     log "Starting lamassu services..."
-    docker compose -f "$SCRIPT_DIR/docker-compose.regtest.yml" up -d
+    docker compose -f "$SCRIPT_DIR/$compose_file" up -d
 
     # 5. Wait for Lightning.Pub
     if ! wait_for_lightning_pub; then
@@ -450,8 +481,9 @@ cmd_up() {
 }
 
 cmd_down() {
+    local compose_file=$(get_compose_file)
     log "Stopping lamassu services..."
-    docker compose -f "$SCRIPT_DIR/docker-compose.regtest.yml" down 2>/dev/null || true
+    docker compose -f "$SCRIPT_DIR/$compose_file" down 2>/dev/null || true
 
     if [[ "$1" == "--all" ]]; then
         stop_regtest
@@ -469,8 +501,9 @@ cmd_reset() {
         exit 0
     fi
 
+    local compose_file=$(get_compose_file)
     log "Stopping services..."
-    docker compose -f "$SCRIPT_DIR/docker-compose.regtest.yml" down -v 2>/dev/null || true
+    docker compose -f "$SCRIPT_DIR/$compose_file" down -v 2>/dev/null || true
 
     log "Removing state files..."
     rm -rf "$STATE_DIR"
@@ -480,7 +513,8 @@ cmd_reset() {
 }
 
 cmd_logs() {
-    docker compose -f "$SCRIPT_DIR/docker-compose.regtest.yml" logs -f "$@"
+    local compose_file=$(get_compose_file)
+    docker compose -f "$SCRIPT_DIR/$compose_file" logs -f "$@"
 }
 
 cmd_status() {
@@ -672,6 +706,16 @@ case "${1:-help}" in
         shift
         cmd_logs "$@"
         ;;
+    # Internal command for external orchestration (called by regtest-start --with-lamassu)
+    _setup_after_start)
+        if ! is_lightning_pub_ready; then
+            wait_for_lightning_pub || exit 1
+        fi
+        local pubkey=$(extract_lightning_pub_info)
+        update_atm_env "$pubkey"
+        setup_atm_app || true
+        echo "ATM setup complete"
+        ;;
     status|info)
         cmd_status
         ;;
@@ -709,15 +753,17 @@ case "${1:-help}" in
         echo "  ./dev.sh logs miner"
         echo ""
         echo "Options for 'up':"
+        echo "  --standalone        Use self-contained mode (own bitcoind/lnd)"
         echo "  --worktree <path>   Build Lightning.Pub from git worktree"
         echo "  --image <name>      Use specific Docker image"
-        echo "  --skip-regtest      Don't auto-start regtest"
+        echo "  --skip-regtest      Don't auto-start shared regtest"
         echo "  --fund              Auto-fund ATM with 100k sats after startup"
         echo "  --fund=<sats>       Auto-fund ATM with specific amount"
         echo "  --machine           Launch ATM app after startup"
         echo ""
         echo "Examples:"
-        echo "  $0 up                                        # Start with default image"
+        echo "  $0 up                                        # Start (uses shared regtest)"
+        echo "  $0 up --standalone                           # Start self-contained"
         echo "  $0 up --fund                                 # Start and fund ATM"
         echo "  $0 up --fund --machine                       # Start, fund, and launch ATM"
         echo "  $0 up --fund=50000                           # Start and fund with 50k sats"