workspace: refine runtime and cleanup lists

crates/worker-runtime/src/management.rs

@@ -50,6 +50,10 @@ impl Default for RuntimeOptions {
     }
 }
 
+fn unknown_platform_component() -> String {
+    "unknown".to_string()
+}
+
 /// Management-plane summary for a Runtime.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 pub struct RuntimeSummary {
@@ -63,6 +67,10 @@ pub struct RuntimeSummary {
     pub cancelled_worker_count: usize,
     pub diagnostic_count: usize,
     pub limits: RuntimeLimits,
+    #[serde(default = "unknown_platform_component")]
+    pub os: String,
+    #[serde(default = "unknown_platform_component")]
+    pub arch: String,
     #[serde(default)]
     pub worker_creation_available: bool,
 }

crates/worker-runtime/src/runtime.rs

@@ -162,6 +162,8 @@ impl Runtime {
             cancelled_worker_count,
             diagnostic_count: state.diagnostics.len(),
             limits: state.limits.clone(),
+            os: std::env::consts::OS.to_string(),
+            arch: std::env::consts::ARCH.to_string(),
             worker_creation_available: state.execution_backend.is_some(),
         })
     }

crates/workspace-server/src/hosts.rs

@@ -1765,7 +1765,9 @@ impl RemoteRuntimeConfig {
             display_name: display_name.into(),
             base_url: base_url.into(),
             bearer_token,
-            cached_capabilities: remote_runtime_capabilities(200, false, false),
+            cached_capabilities: remote_runtime_capabilities(
+                200, false, false, "unknown", "unknown",
+            ),
             cached_status: "configured".to_string(),
             timeout: Duration::from_secs(10),
         }
@@ -2033,6 +2035,8 @@ impl WorkspaceWorkerRuntime for RemoteWorkerRuntime {
                     limit,
                     true,
                     response.runtime.worker_creation_available,
+                    response.runtime.os,
+                    response.runtime.arch,
                 ),
                 diagnostics: Vec::new(),
             },
@@ -2066,7 +2070,7 @@ impl WorkspaceWorkerRuntime for RemoteWorkerRuntime {
                 status: "configured".to_string(),
                 observed_at: Utc::now().to_rfc3339(),
                 last_seen_at: None,
-                capabilities: remote_runtime_capabilities(limit, true, false),
+                capabilities: remote_runtime_capabilities(limit, true, false, "unknown", "unknown"),
                 diagnostics: Vec::new(),
             }],
             Vec::new(),
@@ -2872,6 +2876,8 @@ fn remote_runtime_capabilities(
     limit: usize,
     available: bool,
     worker_creation_available: bool,
+    os: impl Into<String>,
+    arch: impl Into<String>,
 ) -> RuntimeCapabilitySummary {
     RuntimeCapabilitySummary {
         can_list_hosts: true,
@@ -2887,8 +2893,8 @@ fn remote_runtime_capabilities(
         supports_backend_internal_tools: false,
         workspace_scope: "remote_runtime_backend_private".to_string(),
         max_workers: limit,
-        os: "remote".to_string(),
-        arch: "remote".to_string(),
+        os: os.into(),
+        arch: arch.into(),
     }
 }