feat: node graph overlay; move to opencadcodec/opencadkernel/opencadgraph

The codec and kernel repositories and crates are renamed opencadcodec and
opencadkernel. Inside OCS they are depended on under short keys, so code
reads `codec::`, `kernel::` and the new `graph::` (opencadgraph, the node
graph engine). File-format and protocol spellings stay as they were: the
ACIS product id `acadrust`, the ACADRUST_* switches and the plugin
version keys `acadrust_version` / `acadrust_source`.

A button left of MCP on the command line opens a translucent node graph
over the viewport, with a palette of object, input, math, logic, list,
text and geometry nodes added by click or drag. An object node owns
drawing entities and its rows are the Properties panel's own rows for
them: the single-object page is extracted from refresh_properties as
entity_property_sections, values use the control protocol's
property_json, and writes go through set_property_value with a property
target override, so the panel, MCP and the graph share one read/write
path. A list reaching an object row makes one entity per element. Each
graph action is one undo step; the canvas pans and zooms.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/ocs_plugin_api/src/ipc/client.rs

@@ -6,8 +6,8 @@ use std::collections::HashMap;
 use std::path::Path;
 use std::rc::Rc;
 
-use acadrust::xdata::ExtendedDataRecord;
-use acadrust::{CadDocument, EntityType, Handle};
+use codec::xdata::ExtendedDataRecord;
+use codec::{CadDocument, EntityType, Handle};
 use interprocess::local_socket::traits::Stream as StreamTrait;
 use interprocess::local_socket::{GenericNamespaced, Stream, ToNsName};
 
@@ -589,8 +589,8 @@ mod tests {
     use std::sync::atomic::{AtomicU64, Ordering};
     use std::thread;
 
-    use acadrust::entities::Point;
-    use acadrust::{EntityType, Handle};
+    use codec::entities::Point;
+    use codec::{EntityType, Handle};
     use interprocess::local_socket::{
         traits::{Listener, Stream as StreamTrait},
         GenericNamespaced, ListenerOptions, Stream, ToNsName,

crates/ocs_plugin_api/src/ipc/mod.rs

@@ -1,6 +1,6 @@
 //! Inter-process communication layer for out-of-process plugins.
 //!
-//! Built only with the `host` feature because it needs `acadrust`-typed
+//! Built only with the `host` feature because it needs `opencadcodec`-typed
 //! messages and the plugin runner binary.
 //!
 //! Submodules:

crates/ocs_plugin_api/src/ipc/protocol.rs

@@ -21,8 +21,8 @@ use crate::host::{CommandSource, CommandStep, HostSettingValue};
 use crate::manifest::ApiVersion;
 use crate::ribbon::owned::{OwnedPluginManifest, OwnedRibbonGroup};
 
-pub use acadrust::xdata::{ExtendedDataRecord, XDataValue};
-pub use acadrust::{CadDocument, EntityType, Handle};
+pub use codec::xdata::{ExtendedDataRecord, XDataValue};
+pub use codec::{CadDocument, EntityType, Handle};
 pub use crate::host::PreviewWire;
 
 /// Events the host forwards to an active plugin `InteractiveCommand`.

crates/ocs_plugin_api/src/ipc/server.rs

@@ -3,17 +3,17 @@
 use crate::host::HostApi;
 use crate::ipc::protocol::{PluginRequest, PluginResponse};
 
-fn addressable_document_snapshot(host: &dyn HostApi) -> acadrust::CadDocument {
+fn addressable_document_snapshot(host: &dyn HostApi) -> codec::CadDocument {
     let mut snapshot = host.document().clone();
     let attributes = host
         .document()
         .entities()
         .filter_map(|entity| match entity {
-            acadrust::EntityType::Insert(insert) => Some(insert.attributes.clone()),
+            codec::EntityType::Insert(insert) => Some(insert.attributes.clone()),
             _ => None,
         })
         .flatten()
-        .map(acadrust::EntityType::AttributeEntity)
+        .map(codec::EntityType::AttributeEntity)
         .collect::<Vec<_>>();
     for attribute in attributes {
         // Attribute entities remain canonical children of INSERT in the host

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

@@ -9,8 +9,8 @@ use std::sync::atomic::{AtomicU64, Ordering};
 use std::sync::{mpsc, Arc, Mutex};
 use std::time::{Duration, Instant};
 
-use acadrust::xdata::ExtendedDataRecord;
-use acadrust::{CadDocument, EntityType, Handle};
+use codec::xdata::ExtendedDataRecord;
+use codec::{CadDocument, EntityType, Handle};
 use interprocess::local_socket::traits::Stream as StreamTrait;
 use interprocess::local_socket::{GenericNamespaced, Stream, ToNsName};
 use interprocess::TryClone;
@@ -937,7 +937,7 @@ mod tests {
     use crate::ipc::transport::recv;
     use crate::ipc::v4::protocol::{HostToPluginV4, PluginToHostV4};
     use crate::test_lock::ENV_LOCK;
-    use acadrust::entities::Point;
+    use codec::entities::Point;
 
     fn unique_socket_name() -> String {
         static COUNTER: AtomicU64 = AtomicU64::new(0);

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

@@ -114,7 +114,7 @@ mod tests {
             CommandRequest::Point { point: [1.0, 2.0, 3.0] },
             CommandRequest::Text { text: "2".into() },
             CommandRequest::Token { text: "R".into() },
-            CommandRequest::Entity { handle: acadrust::Handle::new(9), point: [0.0; 3] },
+            CommandRequest::Entity { handle: codec::Handle::new(9), point: [0.0; 3] },
             CommandRequest::Selection,
             CommandRequest::Enter,
             CommandRequest::Cancel,
@@ -149,7 +149,7 @@ mod tests {
             TableOperation::LayerCreate {
                 config: LayerConfig {
                     name: "Walls".into(),
-                    color: Some(acadrust::types::Color::Index(5)),
+                    color: Some(codec::types::Color::Index(5)),
                     frozen: Some(true),
                     description: Some("d".into()),
                     ..Default::default()
@@ -170,7 +170,7 @@ mod tests {
             TableOperation::StyleSetCurrent { kind: crate::host::TableStyleKind::Dim, name: "A".into() },
             TableOperation::BlockCreate {
                 name: "B".into(),
-                entities: vec![acadrust::Handle::new(4), acadrust::Handle::new(5)],
+                entities: vec![codec::Handle::new(4), codec::Handle::new(5)],
                 base_point: [1.0, 2.0, 3.0],
                 erase_originals: true,
                 description: Some("d".into()),
@@ -180,7 +180,7 @@ mod tests {
             TableOperation::BlockDelete { name: "C".into() },
             TableOperation::BlockEntityAdd {
                 block: "C".into(),
-                entity: acadrust::EntityType::Line(acadrust::entities::Line::new()),
+                entity: codec::EntityType::Line(codec::entities::Line::new()),
             },
             TableOperation::LinetypeCreate { name: "L".into(), description: "d".into(), pattern: vec![1.0, -1.0] },
             TableOperation::LinetypeModify { name: "L".into(), description: None, pattern: Some(vec![2.0, -2.0]) },
@@ -196,7 +196,7 @@ mod tests {
             assert!(matches!(bincode::deserialize::<PluginRequest>(&bytes).unwrap(),
                 PluginRequest::TableOperation { operation: decoded } if decoded == operation));
         }
-        for result in [Ok(acadrust::Handle::new(9)), Err("refused".to_owned())] {
+        for result in [Ok(codec::Handle::new(9)), Err("refused".to_owned())] {
             let bytes = bincode::serialize(&PluginResponse::TableResult(result.clone())).unwrap();
             assert!(matches!(bincode::deserialize::<PluginResponse>(&bytes).unwrap(),
                 PluginResponse::TableResult(decoded) if decoded == result));
@@ -211,24 +211,24 @@ mod tests {
                 primitive: SolidPrimitive::Pyramid { center: [1.0, 2.0, 3.0], radius: 4.0, height: 5.0, sides: 6 },
                 layer: Some("SOLIDS".into()),
             },
-            SolidOperation::Transform { handle: acadrust::Handle::new(7), matrix: [1.0; 16] },
-            SolidOperation::RegionFromProfile { source: acadrust::Handle::new(3), layer: None, delete_source: true },
+            SolidOperation::Transform { handle: codec::Handle::new(7), matrix: [1.0; 16] },
+            SolidOperation::RegionFromProfile { source: codec::Handle::new(3), layer: None, delete_source: true },
             SolidOperation::EmbedPicture { path: "p.png".into(), origin: [0.0; 3], width: 5.0, layer: None },
             SolidOperation::Boolean {
-                first: acadrust::Handle::new(1),
-                second: acadrust::Handle::new(2),
+                first: codec::Handle::new(1),
+                second: codec::Handle::new(2),
                 operation: crate::host::SolidBoolean::Subtract,
                 layer: None,
                 keep_operands: false,
             },
-            SolidOperation::SurfaceFromProfile { source: acadrust::Handle::new(4), layer: Some("S".into()), delete_source: false },
-            SolidOperation::Extrude { source: acadrust::Handle::new(5), direction: [0.0, 0.0, 2.0], layer: None, delete_source: true },
+            SolidOperation::SurfaceFromProfile { source: codec::Handle::new(4), layer: Some("S".into()), delete_source: false },
+            SolidOperation::Extrude { source: codec::Handle::new(5), direction: [0.0, 0.0, 2.0], layer: None, delete_source: true },
         ] {
             let bytes = bincode::serialize(&PluginRequest::SolidOperation { operation: operation.clone() }).unwrap();
             assert!(matches!(bincode::deserialize::<PluginRequest>(&bytes).unwrap(),
                 PluginRequest::SolidOperation { operation: decoded } if decoded == operation));
         }
-        for result in [Ok(acadrust::Handle::new(9)), Err("refused".to_owned())] {
+        for result in [Ok(codec::Handle::new(9)), Err("refused".to_owned())] {
             let bytes = bincode::serialize(&PluginResponse::SolidResult(result.clone())).unwrap();
             assert!(matches!(bincode::deserialize::<PluginResponse>(&bytes).unwrap(),
                 PluginResponse::SolidResult(decoded) if decoded == result));
@@ -237,14 +237,14 @@ mod tests {
 
     #[test]
     fn selection_request_and_response_roundtrip() {
-        let request = PluginRequest::SetSelection { handles: vec![acadrust::Handle::new(9)] };
+        let request = PluginRequest::SetSelection { handles: vec![codec::Handle::new(9)] };
         let bytes = bincode::serialize(&request).unwrap();
         assert!(matches!(bincode::deserialize::<PluginRequest>(&bytes).unwrap(),
-            PluginRequest::SetSelection { handles } if handles == vec![acadrust::Handle::new(9)]));
-        let response = PluginResponse::Selection(vec![acadrust::Handle::new(9)]);
+            PluginRequest::SetSelection { handles } if handles == vec![codec::Handle::new(9)]));
+        let response = PluginResponse::Selection(vec![codec::Handle::new(9)]);
         let bytes = bincode::serialize(&response).unwrap();
         assert!(matches!(bincode::deserialize::<PluginResponse>(&bytes).unwrap(),
-            PluginResponse::Selection(handles) if handles == vec![acadrust::Handle::new(9)]));
+            PluginResponse::Selection(handles) if handles == vec![codec::Handle::new(9)]));
     }
 
     #[test]