Bedrock: 400 error - output_config.effort: Extra inputs are not permitted

## Description

When using `claude-code-action@v1` with Amazon Bedrock (`use_bedrock: "true"`), the action fails with:

```
API Error: 400 output_config.effort: Extra inputs are not permitted
```

The Bedrock API does not support the `output_config.effort` parameter that the action is sending.

## Reproduction

Workflow configuration:

```yaml
- uses: anthropics/claude-code-action@v1
env:
AWS_REGION: us-east-1
ANTHROPIC_DEFAULT_SONNET_MODEL: arn:aws:bedrock:us-east-1:...:application-inference-profile/...
with:
use_bedrock: "true"
claude_args: |
--model "sonnet[1m]"
--max-turns 8
```

## Error Log

```
"result": "API Error: 400 output_config.effort: Extra inputs are not permitted",
"stop_reason": "stop_sequence",
"total_cost_usd": 0,
"usage": {
"input_tokens": 0,
"output_tokens": 0
}
```

The action exits with code 1 without processing any tokens.

## Expected Behavior

The action should either:
1. Not send `output_config.effort` when using Bedrock, or
2. Strip unsupported parameters before forwarding to the Bedrock API

## Environment

- `claude-code-action@v1`
- Bedrock with Application Inference Profiles
- `--model "sonnet[1m]"` (1M token context window)

Start at the Bedrock request handling used when `use_bedrock: "true"` is enabled, using the provided workflow and 400 error to trace where `output_config.effort` is forwarded. Confirm the behavior with the reproduced Application Inference Profile configuration; done means Bedrock requests no longer send the unsupported parameter and the action processes tokens successfully.

Written by the indexing model from the issue text.