Better search paths and handling of CLI providers (#5554)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

crates/goose/src/providers/base.rs

@@ -4,6 +4,7 @@ use serde::{Deserialize, Serialize};
 
 use super::errors::ProviderError;
 use super::retry::RetryConfig;
+use crate::config::base::ConfigValue;
 use crate::conversation::message::Message;
 use crate::conversation::Conversation;
 use crate::model::ModelConfig;
@@ -200,6 +201,16 @@ impl ConfigKey {
         }
     }
 
+    pub fn from_value_type<T: ConfigValue>(required: bool, secret: bool) -> Self {
+        Self {
+            name: T::KEY.to_string(),
+            required,
+            secret,
+            default: Some(T::DEFAULT.to_string()),
+            oauth_flow: false,
+        }
+    }
+
     /// Create a new ConfigKey that uses OAuth device code flow for configuration
     ///
     /// This is used for providers that support OAuth authentication instead of manual API key entry.