List ~/.ssh/config hosts in the panel source dropdown

Read-only group below saved connections; hosts resolve HostName/User/
Port/IdentityFile (Include, wildcards, %-tokens) and connect on click.
New ssh-agent auth kind covers hosts without a usable identity file;
ProxyJump/ProxyCommand hosts are shown disabled.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/shared/types.ts

@@ -14,7 +14,8 @@ export type Result<T = object> = ({ ok: true } & T) | { ok: false; error: string
 
 export type AuthConfig =
 	| { kind: "password"; password: string }
-	| { kind: "key"; privateKeyPath: string; passphrase?: string };
+	| { kind: "key"; privateKeyPath: string; passphrase?: string }
+	| { kind: "agent" };
 
 export interface ConnectionConfig {
 	host: string;
@@ -35,6 +36,16 @@ export interface ConnFolder {
 	name: string;
 }
 
+/** A concrete host alias resolved from ~/.ssh/config (read-only). */
+export interface SshConfigHost {
+	name: string; // the Host alias as written
+	hostname: string; // resolved HostName (defaults to alias)
+	port: number;
+	username: string;
+	identityFile?: string; // first existing IdentityFile, absolute path
+	unsupported?: "proxy"; // ProxyJump/ProxyCommand present — direct connect can't work
+}
+
 export interface ConnectionsFile {
 	version: 1;
 	folders: ConnFolder[];