feat: add AWS Bedrock service tier support

[roomote]

This PR attempts to address Issue #9874 by implementing AWS Bedrock service tier support.

Summary

Adds support for AWS Bedrock service tiers (STANDARD, FLEX, PRIORITY) allowing users to optimize their AI workloads based on cost and latency requirements.

Changes

• ✅ Added service tier type definitions and constants
• ✅ Added awsBedrockServiceTier field to provider settings schema
• ✅ Updated Bedrock provider to include service_tier parameter in API requests
• ✅ Implemented tier-specific pricing (75% premium for Priority, 50% discount for Flex)
• ✅ Added UI selector for service tier in Bedrock settings component
• ✅ Added translation strings for the new UI elements
• ✅ Updated supported models list based on AWS documentation

Supported Models

Based on the AWS documentation provided, the following models support service tiers:

• Amazon Nova models (Lite, Pro, Pro Latency Optimized)
• DeepSeek R1
• Qwen models (qwen3-next-80b-a3b, qwen3-coder-480b-a35b)
• OpenAI GPT-OSS models (20b, 120b)

Testing

• ✅ Type checking passes
• ✅ Linting passes
• ✅ All existing tests pass

Notes

The pricing multipliers have been updated based on the feedback:

• FLEX: 50% discount from standard (0.5x multiplier)
• PRIORITY: 75% premium over standard (1.75x multiplier)

Feedback and guidance are welcome!

Closes #9874

---

Important

Adds AWS Bedrock service tier support with UI updates, pricing adjustments, and tests for tier-specific functionality.

• Behavior:
  • Adds awsBedrockServiceTier field to provider settings schema in provider-settings.ts.
  • Updates AwsBedrockHandler in bedrock.ts to include service_tier in API requests for supported models.
  • Implements tier-specific pricing in bedrock.ts with 75% premium for Priority and 50% discount for Flex.
• UI:
  • Adds UI selector for service tier in Bedrock.tsx.
  • Adds translation strings for service tiers in multiple language files.
• Testing:
  • Adds tests in bedrock.spec.ts for pricing multipliers and API request parameters.
• Misc:
  • Defines service tier types and constants in bedrock.ts and provider-settings.ts.
  • Updates supported models list in bedrock.ts based on AWS documentation.

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[roomote]

Rooviewer   See task on Roo Cloud

All issues have been resolved. Recent changes fix grammar typos in Catalan and Spanish translations.

• Add tests for service tier functionality in bedrock.spec.ts (pricing multipliers, API request parameters, unsupported models)
• Add translations for all locales

Previous reviews

• 990e58c: Review #1
• 4936295: Review #2
• 4936295: Review #3
• a0b9fd7: Review #4
• 44190d1: Review #5
• 7f3481b: Review #6

_{Mention @roomote in a comment to request specific changes to this pull request or fix all unresolved issues.}

[roomote]

This service tier feature should have test coverage. The existing bedrock.spec.ts has comprehensive tests for similar features (like the 1M context beta). Consider adding tests for: (1) service tier parameter being included in API requests for supported models, (2) pricing multipliers being correctly applied in getModel(), and (3) service tier NOT being applied for unsupported models.

_{Fix it with Roo Code or mention @roomote and request a fix.}

[ronyblum]

@roomote amazon.nova-2-lite-v1:0 is also supported for the Service Tiers. Add to the list of models

[roomote]

Fixaroo   See task on Roo Cloud

Fixed the reported issues. All local checks passed.

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[ronyblum]

@roomote
1/Error message received - Unknown Error: The model returned the following errors: Malformed input request: #: extraneous key [service_tier] is not permitted, please reformat your input and try again.
2/The code is adding service_tier to additionalModelRequestFields, but according to the AWS Bedrock documentation, service_tier should be a top-level parameter in the request, not nested inside additionalModelRequestFields. Fix accordingly
3/Documentation https://docs.aws.amazon.com/bedrock/latest/userguide/service-tiers-inference.html

https://docs.aws.amazon.com/bedrock/latest/userguide/custom-model-import-advanced-features.html

[roomote]

Fixaroo   See task on Roo Cloud

Fixed the service_tier placement. Per AWS documentation, it must be a top-level request parameter, not nested inside additionalModelRequestFields. All tests pass.

_{View commit | Revert commit}

[ronyblum]

@Smartsheet-JB-Brown @hannesrudolph @mrubens PR after updates tested locally and works as expected

[roomote]

Fixaroo   Follow along on Roo Cloud

Working on the following:

• Adding AWS Bedrock service tier translations to all locale files

[roomote]

Rooviewer   See task on Roo Cloud

Review complete. All previous issues have been addressed and no new issues found.

• Add tests for service tier functionality in bedrock.spec.ts
• Add amazon.nova-2-lite-v1:0 to supported models list
• Move service_tier to top-level request parameter (per AWS docs)
• Add translations for all 17 locales

_{Mention @roomote in a comment to request specific changes to this pull request or fix all unresolved issues.}