feat: prepare agen crates for publication

crates/session-store/src/event_trace.rs

@@ -7,7 +7,7 @@
 //!
 //! Disabled by default. Enable via `SessionConfig::record_event_trace`.
 
-use llm_engine::llm_client::event::Event;
+use agen::llm_client::event::Event;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
 

crates/session-store/src/lib.rs

@@ -40,10 +40,10 @@ pub mod system_item;
 pub mod worker_metadata;
 pub mod worker_session_store;
 
+pub use agen::UsageRecord;
+pub use agen::llm_client::types::{ContentPart, Item, Role};
 pub use event_trace::{TraceEntry, TracePayload};
 pub use fs_store::FsStore;
-pub use llm_engine::UsageRecord;
-pub use llm_engine::llm_client::types::{ContentPart, Item, Role};
 pub use logged_item::{LoggedContentPart, LoggedItem, LoggedRole, from_logged, to_logged};
 pub use segment::{
     SegmentStartState, append_entry, append_system_item, classify_history_item,

crates/session-store/src/logged_item.rs

@@ -1,4 +1,4 @@
-//! Persistence-stable mirror of `llm_engine::Item`.
+//! Persistence-stable mirror of `agen::Item`.
 //!
 //! `LogEntry` does not embed `Item` directly because that couples the on-disk
 //! schema to the LLM worker's internal type — a field rename or addition there
@@ -12,11 +12,11 @@
 //! `Reasoning::encrypted_content` is preserved because OpenAI Responses ZDR
 //! requires it on stateless re-send.
 
-use base64::{Engine as _, engine::general_purpose::STANDARD};
-use llm_engine::{
+use agen::{
     llm_client::types::{ContentPart, Item, Role},
     tool::{Attachment, ImageAttachment},
 };
+use base64::{Engine as _, engine::general_purpose::STANDARD};
 use serde::{Deserialize, Deserializer, Serialize, Serializer, de::Error as _};
 
 fn is_false(value: &bool) -> bool {
@@ -437,8 +437,8 @@ mod tests {
             "attached",
             None,
             false,
-            vec![llm_engine::tool::Attachment::Image(
-                llm_engine::tool::ImageAttachment::new(
+            vec![agen::tool::Attachment::Image(
+                agen::tool::ImageAttachment::new(
                     "image/png",
                     std::sync::Arc::<[u8]>::from(&b"secret-image-body"[..]),
                 ),

crates/session-store/src/segment.rs

@@ -9,9 +9,9 @@ use crate::segment_log::{self, LogEntry, SegmentOrigin};
 use crate::store::{Store, StoreError};
 use crate::system_item::SystemItem;
 use crate::{SegmentId, SessionId};
-use llm_engine::EngineResult;
-use llm_engine::llm_client::RequestConfig;
-use llm_engine::llm_client::types::Item;
+use agen::EngineResult;
+use agen::llm_client::RequestConfig;
+use agen::llm_client::types::Item;
 use protocol::Segment;
 
 /// State snapshot for creating a SegmentStart entry.

crates/session-store/src/segment_log.rs

@@ -9,8 +9,8 @@
 //! ordered. Fork lineage references between segments use turn-number indices
 //! (`SegmentOrigin.at_turn_index`) rather than per-entry hashes.
 
-use llm_engine::llm_client::types::{Item, RequestConfig};
-use llm_engine::{EngineResult, UsageRecord};
+use agen::llm_client::types::{Item, RequestConfig};
+use agen::{EngineResult, UsageRecord};
 use protocol::{InvokeKind, Segment};
 use serde::{Deserialize, Serialize};
 
@@ -482,8 +482,8 @@ mod tests {
                 "attached",
                 None,
                 false,
-                vec![llm_engine::tool::Attachment::Image(
-                    llm_engine::tool::ImageAttachment::new("image/png", b"durable-image".to_vec()),
+                vec![agen::tool::Attachment::Image(
+                    agen::tool::ImageAttachment::new("image/png", b"durable-image".to_vec()),
                 )],
             )
             .into(),
@@ -497,7 +497,7 @@ mod tests {
             Item::ToolResult { attachments, .. }
                 if matches!(
                     attachments.as_slice(),
-                    [llm_engine::tool::Attachment::Image(image)]
+                    [agen::tool::Attachment::Image(image)]
                         if image.data() == b"durable-image"
                 )
         ));
@@ -837,10 +837,10 @@ mod tests {
         assert_eq!(state.history.len(), 1);
         match &state.history[0] {
             Item::Message { role, content, .. } => {
-                assert!(matches!(role, llm_engine::Role::User));
+                assert!(matches!(role, agen::Role::User));
                 assert_eq!(content.len(), 1);
                 match &content[0] {
-                    llm_engine::ContentPart::Text { text } => {
+                    agen::ContentPart::Text { text } => {
                         assert_eq!(text, "see line1\nline2@src/main.rs");
                     }
                     other => panic!("unexpected content: {other:?}"),

crates/session-store/src/system_item.rs

@@ -18,7 +18,7 @@
 //! preserved only on the log/wire side; the LLM still sees plain
 //! system-message text.
 
-use llm_engine::llm_client::types::Item;
+use agen::llm_client::types::Item;
 use protocol::WorkerEvent;
 use serde::{Deserialize, Serialize};