Title: Autocomplete Failure for @ Symbol in File Selection

Bug Description
@でファイルの候補が表示されない．

Environment Info

• Platform: linux
• Terminal: konsole
• Version: 1.0.35
• Feedback ID: b5d9cd0a-9f4e-4c14-b7ba-be816d075705

Errors

[{"error":"Error: Command failed: /home/ablaze/.nvm/versions/node/v22.13.1/lib/node_modules/@anthropic-ai/claude-code/vendor/ripgrep/x64-linux/rg --files --follow .\nrg: ./repos/trigger.dev/hosting/docker/webapp/.env: No such file or directory (os error 2)\nrg: ./repos/trigger.dev/hosting/docker/worker/.env: No such file or directory (os error 2)\nrg: ./repos/trigger.dev/internal-packages/database/.env: No such file or directory (os error 2)\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at ChildProcess.exithandler (node:child_process:414:12)\n    at ChildProcess.emit (node:events:524:28)\n    at ChildProcess.emit (node:domain:489:12)\n    at maybeClose (node:internal/child_process:1101:16)\n    at ChildProcess._handle.onexit (node:internal/child_process:304:5)","timestamp":"2025-06-27T15:56:27.526Z"},{"error":"Error: Command failed: /home/ablaze/.nvm/versions/node/v22.13.1/lib/node_modules/@anthropic-ai/claude-code/vendor/ripgrep/x64-linux/rg --files --follow .\nrg: ./repos/trigger.dev/hosting/docker/webapp/.env: No such file or directory (os error 2)\nrg: ./repos/trigger.dev/internal-packages/database/.env: No such file or directory (os error 2)\nrg: ./repos/trigger.dev/hosting/docker/worker/.env: No such file or directory (os error 2)\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at ChildProcess.exithandler (node:child_process:414:12)\n    at ChildProcess.emit (node:events:524:28)\n    at ChildProcess.emit (node:domain:489:12)\n    at maybeClose (node:internal/child_process:1101:16)\n    at Socket.<anonymous> (node:internal/child_process:456:11)\n    at Socket.emit (node:events:524:28)\n    at Socket.emit (node:domain:489:12)\n    at Pipe.<anonymous> (node:net:351:12)","timestamp":"2025-06-27T16:02:34.228Z"},{"error":"Error: Command failed: /home/ablaze/.nvm/versions/node/v22.13.1/lib/node_modules/@anthropic-ai/claude-code/vendor/ripgrep/x64-linux/rg --files --follow .\nrg: ./repos/trigger.dev/internal-packages/database/.env: No such file or directory (os error 2)\nrg: ./repos/trigger.dev/hosting/docker/webapp/.env: No such file or directory (os error 2)\nrg: ./repos/trigger.dev/hosting/docker/worker/.env: No such file or directory (os error 2)\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at ChildProcess.exithandler (node:child_process:414:12)\n    at ChildProcess.emit (node:events:524:28)\n    at ChildProcess.emit (node:domain:489:12)\n    at maybeClose (node:internal/child_process:1101:16)\n    at Socket.<anonymous> (node:internal/child_process:456:11)\n    at Socket.emit (node:events:524:28)\n    at Socket.emit (node:domain:489:12)\n    at Pipe.<anonymous> (node:net:351:12)","timestamp":"2025-06-27T16:02:34.965Z"},{"error":"Error: Command failed: /home/ablaze/.nvm/versions/node/v22.13.1/lib/node_modules/@anthropic-ai/claude-code/vendor/ripgrep/x64-linux/rg --files --follow .\nrg: ./repos/trigger.dev/hosting/docker/webapp/.env: No such file or directory (os error 2)\nrg: ./repos/trigger.dev/hosting/docker/worker/.env: No such file or directory (os error 2)\nrg: ./repos/trigger.dev/internal-packages/database/.env: No such file or directory (os error 2)\n\n    at genericNodeError (node:internal/errors:983:15)\n    at wrappedFn (node:internal/errors:537:14)\n    at ChildProcess.exithandler (node:child_process:414:12)\n    at ChildProcess.emit (node:events:524:28)\n    at ChildProcess.emit (node:domain:489:12)\n    at maybeClose (node:internal/child_process:1101:16)\n    at Socket.<anonymous> (node:internal/child_process:456:11)\n    at Socket.emit (node:events:524:28)\n    at Socket.emit (node:domain:489:12)\n    at Pipe.<anonymous> (node:net:351:12)","timestamp":"2025-06-27T16:02:35.674Z"}]