[goose2] MCP Apps: translate ACP host capabilities into MCP initialization (#8623)

Signed-off-by: Andrew Harvard <aharvard@squareup.com>

crates/goose-cli/src/cli.rs

@@ -1,6 +1,7 @@
 use anyhow::Result;
 use clap::{Args, CommandFactory, Parser, Subcommand};
 use clap_complete::{generate, Shell as ClapShell};
+use goose::agents::GoosePlatform;
 use goose::builtin_extension::register_builtin_extensions;
 use goose::config::{Config, GooseMode};
 #[cfg(feature = "telemetry")]
@@ -1083,6 +1084,7 @@ async fn handle_serve_command(host: String, port: u16, builtins: Vec<String>) ->
         builtins,
         data_dir: Paths::data_dir(),
         config_dir: Paths::config_dir(),
+        goose_platform: GoosePlatform::GooseCli,
     }));
     let router = create_router(server);