feat(plugin): AutoCAD-compatible PAUSE, ENTER keyword, and command streaming

crates/ocs_plugin_api/src/host.rs

@@ -568,6 +568,12 @@ pub trait HostApi {
         let _ = config;
         false
     }
+
+    /// Run a command on the active document tab's command line (AutoLISP style).
+    fn execute_command(&mut self, cmd: &str) -> bool {
+        let _ = cmd;
+        false
+    }
 }
 
 /// Configuration properties for creating or modifying a layer.

crates/ocs_plugin_api/src/ipc/client.rs

@@ -444,6 +444,20 @@ impl HostApi for PluginHostApi {
             }
         }
     }
+
+    fn execute_command(&mut self, cmd: &str) -> bool {
+        match self.client.request(PluginRequest::ExecuteCommand(cmd.to_string())) {
+            Ok(PluginResponse::Bool(b)) => b,
+            Ok(other) => {
+                eprintln!("[plugin] unexpected ExecuteCommand response: {other:?}");
+                false
+            }
+            Err(e) => {
+                eprintln!("[plugin] ExecuteCommand request failed: {e}");
+                false
+            }
+        }
+    }
 }
 
 /// Sentinel reader used when the shared-memory view could not be initialized.

crates/ocs_plugin_api/src/ipc/protocol.rs

@@ -142,6 +142,8 @@ pub enum PluginRequest {
     AddLayer(crate::host::LayerConfig),
     /// Modify specified properties of an existing layer in the active document.
     ModifyLayer(crate::host::LayerConfig),
+    /// Run a command on the active document tab's command line (AutoLISP style).
+    ExecuteCommand(String),
 }
 
 /// Responses the host sends back for `PluginRequest`.

crates/ocs_plugin_api/src/ipc/server.rs

@@ -79,5 +79,6 @@ pub fn handle_plugin_request(
         ),
         AddLayer(config) => PluginResponse::OptHandle(host.add_layer(config)),
         ModifyLayer(config) => PluginResponse::Bool(host.modify_layer(config)),
+        ExecuteCommand(cmd) => PluginResponse::Bool(host.execute_command(&cmd)),
     }
 }

crates/ocs_plugin_api/src/ipc/v4/client.rs

@@ -758,6 +758,20 @@ impl HostApi for V4PluginHostApi {
             }
         }
     }
+
+    fn execute_command(&mut self, cmd: &str) -> bool {
+        match self.request(PluginRequest::ExecuteCommand(cmd.to_string())) {
+            Ok(PluginResponse::Bool(b)) => b,
+            Ok(other) => {
+                eprintln!("[plugin] unexpected ExecuteCommand response: {other:?}");
+                false
+            }
+            Err(e) => {
+                eprintln!("[plugin] ExecuteCommand failed: {e}");
+                false
+            }
+        }
+    }
 }
 
 #[cfg(test)]