Always fire callback via trap, even on script failure

Uses ERR/EXIT trap to ensure the orchestrator is notified when the
startup script fails (e.g. clone error, missing command file). Prevents
orphaned workspaces that never get cleaned up.

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

coder/cloudflare-worker/main.tf

@@ -428,6 +428,17 @@ resource "coder_agent" "main" {
 
   startup_script = <<-EOT
     #!/bin/bash
+
+    # Always notify the orchestrator when done, even on failure
+    notify_complete() {
+      if [ -n "$CALLBACK_URL" ]; then
+        curl -s -X POST -H "Content-Type: application/json" \
+          -d "{\"status\":\"$1\"}" \
+          "$CALLBACK_URL" || echo "Callback failed (non-fatal)"
+      fi
+    }
+    trap 'notify_complete "failed"' ERR EXIT
+
     set -e
 
     # --- Configure git ---
@@ -483,25 +494,18 @@ resource "coder_agent" "main" {
       # Read the slash command .md file, strip YAML frontmatter, substitute $ARGUMENTS
       CMD_FILE=".claude/commands/$TASK_TYPE.md"
       if [ ! -f "$CMD_FILE" ]; then
-        echo "ERROR: Command file not found: $CMD_FILE" | tee ~/task-output.log
+        echo "ERROR: Command file not found: $CMD_FILE"
         exit 1
       fi
       PROMPT=$(sed '1{/^---$/!q}; 1,/^---$/d' "$CMD_FILE" | sed "s/\\\$ARGUMENTS/$ARGS/g")
 
       # Run Claude Code in non-interactive mode with tool access
-      claude -p --dangerously-skip-permissions --verbose "$PROMPT" 2>&1 | tee ~/task-output.log
-      EXIT_CODE=$?
-      echo "Claude exited with code: $EXIT_CODE" | tee -a ~/task-output.log
-
-      echo "Task completed. Output saved to ~/task-output.log"
-
-      # Notify orchestrator that the task is done
-      if [ -n "$CALLBACK_URL" ]; then
-        curl -s -X POST -H "Content-Type: application/json" \
-          -d '{"status":"complete"}' \
-          "$CALLBACK_URL" || echo "Callback failed (non-fatal)"
-      fi
+      claude -p --dangerously-skip-permissions --verbose "$PROMPT"
     fi
+
+    # Success — override the trap
+    trap - ERR EXIT
+    notify_complete "complete"
   EOT
 }