feat(docker): add launcher bundle image with all three binaries (#1309)

Add a new Docker image variant tagged as `launcher` that includes
picoclaw, picoclaw-launcher, and picoclaw-launcher-tui. The image
defaults to running picoclaw-launcher (web console) instead of gateway.

Original minimal single-binary image remains unchanged.

New files:
- docker/Dockerfile.goreleaser.launcher: goreleaser Docker with 3 binaries

Updated:
- .goreleaser.yaml: new dockers_v2 entry for launcher tag

docker/docker-compose.yml

@@ -19,7 +19,7 @@ services:
 
   # ─────────────────────────────────────────────
   # PicoClaw Gateway (Long-running Bot)
-  #   docker compose -f docker/docker-compose.yml up picoclaw-gateway
+  #   docker compose -f docker/docker-compose.yml --profile gateway up
   # ─────────────────────────────────────────────
   picoclaw-gateway:
     image: docker.io/sipeed/picoclaw:latest
@@ -32,3 +32,21 @@ services:
     #  - "host.docker.internal:host-gateway"
     volumes:
       - ./data:/root/.picoclaw
+
+  # ─────────────────────────────────────────────
+  # PicoClaw Launcher (Web Console + Gateway)
+  #   docker compose -f docker/docker-compose.yml --profile launcher up
+  # ─────────────────────────────────────────────
+  picoclaw-launcher:
+    image: docker.io/sipeed/picoclaw:launcher
+    container_name: picoclaw-launcher
+    restart: on-failure
+    profiles:
+      - launcher
+    environment:
+      - PICOCLAW_GATEWAY_HOST=0.0.0.0
+    ports:
+      - "127.0.0.1:18800:18800"
+      - "127.0.0.1:18790:18790"
+    volumes:
+      - ./data:/root/.picoclaw