Fixes #36866

- Updated internal naming for Claude 4 models to be consistent.
- Corrected max output tokens for Anthropic Bedrock models to match docs

Shoutout to @tlehn for noticing the bug, and finding the resolution.

Release Notes:

- bedrock: Fixed inference config errors causing Opus 4 Thinking and
Opus 4.1 Thinking to fail (thanks [@tlehn](https://github.com/tlehn) and
[@5herlocked](https://github.com/5herlocked])
- bedrock: Fixed an issue which prevented Rules / System prompts not
functioning with Bedrock models (thanks
[@tlehn](https://github.com/tlehn) and
[@5herlocked](https://github.com/5herlocked])