[ENHANCEMENT] Add Opus 4.5 for Bedrock provider

[pisicode]

Problem (one or two sentences)

The Opus 4.5 model has been released on Bedrock but has not yet been added to RooCode.

Context (who is affected and when)

Developers trying to use RooCode with the Bedrock provider.

Desired behavior (conceptual, not technical)

Be able to select and use the new model from the dropdown list.
The model ID on Bedrock is: anthropic.claude-opus-4-5-20251101-v1:0

Constraints / preferences (optional)

No response

Request checklist

• I've searched existing Issues and Discussions for duplicates
• This describes a specific problem with clear context and impact

Roo Code Task Links (optional)

No response

Acceptance criteria (optional)

No response

Proposed approach (optional)

No response

Trade-offs / risks (optional)

No response

[roomote]

I'm exploring a potential fix for adding Claude Opus 4.5 support for the Bedrock provider. The model ID you've provided (anthropic.claude-opus-4-5-20251101-v1:0) will be added to the Bedrock models configuration. I'll open a PR to share progress.

[roomote]

Opened PR #9572 with my attempt at addressing this issue. The PR adds the Claude Opus 4.5 model (anthropic.claude-opus-4-5-20251101-v1:0) to the Bedrock provider configuration. All tests are passing and the implementation follows the existing pattern for Claude models. Feedback welcome!