fix: install chromium via apt for arm64 compatibility in browser images

agent-browser install fails on linux/arm64 because no prebuilt
Chromium binary is available. Install chromium from the system
package manager instead, which supports both amd64 and arm64.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: barckcode

claude-code/browser/Dockerfile

@@ -1,4 +1,6 @@
 FROM ghcr.io/helmcode/agent_crew_agent:0.3.7
 
-RUN npm install -g agent-browser \
-    && agent-browser install
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    chromium \
+    && rm -rf /var/lib/apt/lists/* \
+    && npm install -g agent-browser

open-code/browser/Dockerfile

@@ -1,4 +1,6 @@
 FROM ghcr.io/helmcode/agent_crew_opencode_agent:0.3.7
 
-RUN npm install -g agent-browser \
-    && agent-browser install
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    chromium \
+    && rm -rf /var/lib/apt/lists/* \
+    && npm install -g agent-browser