Add initial support for bedrock

[kujtimiihoxha]

To use claude bedrock 3.7 use the model

{
  "model": {
    "coder": "bedrock.claude-3.7-sonnet",
    "coderMaxTokens": 20000
  },
  "lsp": {
    "gopls": {
      "command": "gopls"
    }
  }
}

[kujtimiihoxha]

@adamdottv this adds initial support for bedrock.

It uses the AWS_REGION or DEFAULT_AWS_REGION to prefix the model name (bedrock is weird)

Also termai does not do anything to setup your aws credentials so it assumes you are authenticated.

Also currently the bedrock provider does not use caching.

[adamdottv]

@kujtimiihoxha i pulled latest and did a go build, but i'm not able to get it to send anything, when i type a new message and hit enter it just sits there (no debug log messages either)

[kujtimiihoxha]

@adamdottv pull latest now and see what logs you see when you click 'L' I added some better logging support (to go back just click backspace/delete). If you still don't see anything I can help debug.

[adamdottv]

cc @kujtimiihoxha

[kujtimiihoxha]

@adamdottv ok so I was able to reproduce this, the issue is the AWS session what I had to do to make it work is

aws sso login --profile MY_PROFILE
export AWS_REGION=us-east-1
export AWS_PROFILE=MY_PROFILE

go run main.go

This works. Also pull the latest stuff I added the default region so the region env is not needed and also fixed some small things.

[kujtimiihoxha]

@adamdottv make sure to also get the latest changes, I fixed a couple of things and made logs better, i also added the ability to cancel the message when you are focused on the editor just click control+x (if you have a better shortcut let me know 😂 )