chore: remove unused legacy agent.sh

- Remove agent.sh (was never actually used, entrypoint.sh handles both modes)
- Update Dockerfile to remove the copy of agent.sh

apps/backend/dockerfiles/augment-agent/Dockerfile

@@ -39,10 +39,6 @@ RUN chmod +x /usr/local/bin/agentctl
 # Create agent directory
 WORKDIR /agent
 
-# Copy agent script (legacy, for backward compatibility)
-COPY dockerfiles/augment-agent/agent.sh /agent/agent.sh
-RUN chmod +x /agent/agent.sh
-
 # Copy entrypoint script
 COPY dockerfiles/augment-agent/entrypoint.sh /agent/entrypoint.sh
 RUN chmod +x /agent/entrypoint.sh

apps/backend/dockerfiles/augment-agent/agent.sh

@@ -1,31 +0,0 @@
-#!/bin/bash
-# Augment Agent - Runs in ACP (Agent Client Protocol) mode
-# Uses JSON-RPC 2.0 over stdin/stdout for bidirectional communication
-
-set -e
-
-# Check if auggie is available
-if ! command -v auggie &> /dev/null; then
-    echo '{"jsonrpc":"2.0","method":"error","params":{"message":"Auggie CLI not found"}}' >&2
-    exit 1
-fi
-
-# Check for authentication
-if [ -z "$AUGMENT_SESSION_AUTH" ]; then
-    echo '{"jsonrpc":"2.0","method":"error","params":{"message":"AUGMENT_SESSION_AUTH required"}}' >&2
-    exit 1
-fi
-
-# Export for auggie to use
-export AUGMENT_SESSION_AUTH
-
-# Build auggie command
-AUGGIE_ARGS="--acp"
-
-# Add workspace root if we're in a workspace with files
-if [ -d "/workspace" ] && [ "$(ls -A /workspace 2>/dev/null)" ]; then
-    AUGGIE_ARGS="$AUGGIE_ARGS --workspace-root /workspace"
-fi
-
-# Execute auggie in ACP mode - stdin/stdout will be used for JSON-RPC communication
-exec auggie $AUGGIE_ARGS