Fix slash command invocation: /analyse not /project:analyse

The project: prefix is not valid Claude Code syntax. Slash commands
in .claude/commands/ are invoked as /$TASK_TYPE directly.

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

coder/cloudflare-worker/main.tf

@@ -580,7 +580,7 @@ LOGEOF
       fi
 
       # Run Claude Code in non-interactive mode with tool access
-      claude -p --dangerously-skip-permissions --verbose "/project:$TASK_TYPE $ARGS" 2>&1 | tee ~/task-output.log
+      claude -p --dangerously-skip-permissions --verbose "/$TASK_TYPE $ARGS" 2>&1 | tee ~/task-output.log
       EXIT_CODE=$?
       echo "Claude exited with code: $EXIT_CODE" | tee -a ~/task-output.log