Complete local-first Rig provider migration

crates/galaxy_core/src/channel/channel_tests.rs

@@ -22,3 +22,13 @@ fn only_oss_disables_warp_service_egress() {
     assert!(Channel::Integration.allows_warp_service_egress());
     assert!(!Channel::Oss.allows_warp_service_egress());
 }
+
+#[test]
+fn only_oss_is_local_first() {
+    assert!(!Channel::Stable.is_local_first());
+    assert!(!Channel::Preview.is_local_first());
+    assert!(!Channel::Dev.is_local_first());
+    assert!(!Channel::Local.is_local_first());
+    assert!(!Channel::Integration.is_local_first());
+    assert!(Channel::Oss.is_local_first());
+}

crates/galaxy_core/src/channel/mod.rs

@@ -63,6 +63,12 @@ impl Channel {
         }
     }
 
+    /// Whether the channel is local-first and must not expose Warp-owned
+    /// identity, sharing, or workspace state to the product surface.
+    pub fn is_local_first(&self) -> bool {
+        !self.allows_warp_service_egress()
+    }
+
     /// Returns the CLI command name corresponding to this channel.
     pub fn cli_command_name(&self) -> &'static str {
         match self {