[Feature Request] Add support for Opus 4.5 model in CLI

Bug Description
I cannot use opus 4.5 from cli I would like to use it!

Environment Info

• Platform: darwin
• Terminal: vscode
• Version: 2.1.76
• Feedback ID: e052fd25-e485-4c7c-bd03-202f67e30f10

Errors

[{"error":"Error: Failed to delete keychain entry\n    at R9q (file:///Users/emretufekci/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4280:8387)\n    at process.processTicksAndRejections (node:internal/process/task_queues:103:5)\n    at async sNq (file:///Users/emretufekci/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:6994:720)\n    at async Vb8 (file:///Users/emretufekci/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:6994:624)\n    at async dd6 (file:///Users/emretufekci/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2513:2294)\n    at async wc6 (file:///Users/emretufekci/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2537:5372)\n    at async file:///Users/emretufekci/.nvm/versions/node/v24.11.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:2557:2721","timestamp":"2026-03-16T20:25:07.369Z"}]