fix: docker/agents/entrypoint.sh + edge/reproduce entrypoints: honor CLAUDE_CONFIG_DIR (#644)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker/agents/entrypoint.sh

@@ -98,8 +98,8 @@ log "Claude CLI: $(claude --version 2>&1 || true)"
 # auth method is active so operators can debug 401s.
 if [ -n "${ANTHROPIC_API_KEY:-}" ]; then
   log "Auth: ANTHROPIC_API_KEY is set — using API key (no OAuth rotation)"
-elif [ -f /home/agent/.claude/credentials.json ]; then
-  log "Auth: OAuth credentials mounted from host (~/.claude)"
+elif [ -f "${CLAUDE_CONFIG_DIR:-/home/agent/.claude}/credentials.json" ]; then
+  log "Auth: OAuth credentials mounted from host (${CLAUDE_CONFIG_DIR:-~/.claude})"
 else
   log "WARNING: No ANTHROPIC_API_KEY and no OAuth credentials found."
   log "Run 'claude auth login' on the host, or set ANTHROPIC_API_KEY in .env"

docker/reproduce/entrypoint-reproduce.sh

@@ -15,7 +15,7 @@
 # Volumes expected:
 #   /home/agent/data          — agent-data volume (stack-lock files go here)
 #   /home/agent/repos         — project-repos volume
-#   /home/agent/.claude       — host ~/.claude (OAuth credentials)
+#   $CLAUDE_CONFIG_DIR        — shared Claude config dir (OAuth credentials)
 #   /home/agent/.ssh          — host ~/.ssh (read-only)
 #   /usr/local/bin/claude     — host claude CLI binary (read-only)
 #   /var/run/docker.sock      — host docker socket