Add documentation for AWS deployment, S3 tracking, and Amazon Bedrock integration

[vaquarkhan]

The docs currently have no coverage for deploying Burr on AWS. With the S3 tracking client, SQS event-driven mode, and Bedrock integration now available, we need documentation for:

S3 tracking concept guide - deployment models (local/hybrid/production), SQS event-driven mode, stream buffering, configuration reference, Terraform setup, migration guide
Amazon Bedrock integration reference - BedrockAction, BedrockStreamingAction, supported models, IAM permissions
AWS deployment example - architecture, quick start, Terraform variables/outputs
Related: #664, #391, PR #666

Happy to submit a PR adding these three pages and wiring them into the existing toctrees.

[vaquarkhan]

Please assign to me

[github-actions]

@vaquarkhan, this issue has been inactive for 18 days.
Are you still working on it? Drop a comment to let us know.

If there is no update within 7 days, the assignment will be removed
so someone else can pick it up
(per the assignment policy).

[vaquarkhan]

Yes I am working on it

[github-actions]

@vaquarkhan, this issue has been inactive for 20 days.
Are you still working on it? Drop a comment to let us know.

If there is no update within 7 days, the assignment will be removed
so someone else can pick it up
(per the assignment policy).

[vaquarkhan]

Yes working

[vaquarkhan]

Hi @skrawcz PR is raised , plz review