chore: add compose alternative to develop.sh (#22157)

Adds a `compose.dev.yml` intended as a pure-Docker alternative to
`develop.sh`.

---------

Co-authored-by: Steven Masley <stevenmasley@gmail.com>

scripts/docker-dev/setup-multi-org.sh

@@ -0,0 +1,44 @@
+#!/bin/sh
+set -e
+
+CODER="go run ./enterprise/cmd/coder"
+TOKEN_FILE="/bootstrap/token"
+LICENSE_FILE="/license.txt"
+ORG_NAME="${ORG_NAME:-second-organization}"
+
+echo "=== Multi-Organization Setup ==="
+
+# Load bootstrap token
+CODER_SESSION_TOKEN=$(cat "$TOKEN_FILE")
+if [ -z "${CODER_SESSION_TOKEN}" ]; then
+	echo "Bootstrap token not found in ${TOKEN_FILE}"
+	exit 1
+fi
+export CODER_SESSION_TOKEN
+
+# Check if a license has not yet been added
+LICENSES=$($CODER license list | tail -n +2)
+if [ -z "${LICENSES}" ]; then
+	echo "No existing license found."
+	if [ ! -f "${LICENSE_FILE}" ]; then
+		echo "License required, set CODER_DEV_LICENSE_FILE=path/to/license.txt"
+		exit 1
+	fi
+	echo "Adding license..."
+	$CODER license add --file "${LICENSE_FILE}"
+fi
+
+# Create second organization if it doesn't exist.
+if ! $CODER organizations show "$ORG_NAME" >/dev/null 2>&1; then
+	echo "Creating organization '$ORG_NAME'..."
+	$CODER organizations create -y "$ORG_NAME"
+else
+	echo "Organization '$ORG_NAME' already exists."
+fi
+
+# Add member user to the organization.
+echo "Adding member user to organization '$ORG_NAME'..."
+$CODER organizations members add member --org "$ORG_NAME" 2>/dev/null ||
+	echo "Member already in organization or failed to add."
+
+echo "=== Multi-org setup complete ==="