use appropriate type for config attributes

[Daniel-Kolev]

What I did I noticed all of the config attributes were stored as plain strings. Instead of handling the parsing logic on the client side, I believe it's better to do it in the CLI. I've added JSON parsing when setting values and also displaying them in the correct type.

Related issue

Notice: booleans and numbers not being strings. Also the string array in the second example.

docker mcp profile config redis --get-all --format=json
{
  "redis.cluster_mode": false,
  "redis.host": "localhost",
  "redis.port": 6379,
  "redis.ssl": false,
  "redis.ssl_keyfile": "f"
}
docker mcp profile config file --get-all --format=json
{
  "filesystem.paths": [
    "/Users/dk/dev",
    "/Users/dk/tmp"
  ]
}

(not mandatory) A picture of a cute animal, if possible in relation to what you did

[cmrigney]

lgtm, thanks!