Fix issue #451: Configure host address for optional exposure outside container in Docker (#460)

* Add Docker support with network exposure

* Add Docker support with network exposure

* Revise changeset

* Update to include optional exposure to devices on local network by updating HOST_BIND env variable

Author: glassBead-tc

.changeset/dirty-hotels-press.md

@@ -0,0 +1,12 @@
+---
+'srcbook': patch
+---
+
+Added configurable network exposure for Docker deployments with secure defaults. This includes:
+
+- Added docker-compose.yml with configurable network binding
+- Default configuration restricts access to localhost (127.0.0.1) for security
+- Optional network exposure via HOST_BIND environment variable
+- Configured port 2150 mapping for Docker container
+
+Users can optionally expose their Srcbook instance to other network devices by setting HOST_BIND=0.0.0.0 when running Docker.

docker-compose.yml

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+version: '3'
+services:
+  srcbook:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - "${HOST_BIND:-127.0.0.1}:2150:2150"
+    volumes:
+      - type: bind
+        source: ~/.srcbook
+        target: /root/.srcbook
+        bind:
+          create_host_path: true
+    environment:
+      - NODE_ENV=production
+      - HOST=${HOST_BIND:-127.0.0.1}
+      - SRCBOOK_INSTALL_DEPS=true
+    command: ["pnpm", "start"]