Update claude-opus-4-5 to claude-opus-4-6 in workflow (#909)

* Update claude-opus-4-5 to claude-opus-4-6 in workflow

* Fix whitespace formatting in docs and commands

* Fix whitespace formatting in docs and commands

* Add claude-opus-4-6 model to PR review workflow

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Co-authored-by: Claude <noreply@anthropic.com>

.github/workflows/claude.yml

@@ -36,4 +36,4 @@ jobs:
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
           claude_args: |
             --allowedTools "Bash(bun install),Bash(bun test:*),Bash(bun run format),Bash(bun typecheck)"
-            --model "claude-opus-4-5"
+            --model "claude-opus-4-6"