Implement simple git checkpoint command for supervisor

1 files changed, 33 insertions, 10 deletions

diff --git a/makima/src/server/handlers/mesh_supervisor.rs b/makima/src/server/handlers/mesh_supervisor.rs
index 3add89f..278d0f5 100644
--- a/makima/src/server/handlers/mesh_supervisor.rs
+++ b/makima/src/server/handlers/mesh_supervisor.rs
@@ -714,10 +714,12 @@ pub async fn read_worktree_file(
     ),
     request_body = CreateCheckpointRequest,
     responses(
-        (status = 201, description = "Checkpoint created", body = CheckpointResponse),
+        (status = 202, description = "Checkpoint creation accepted", body = CheckpointResponse),
         (status = 401, description = "Unauthorized"),
+        (status = 403, description = "Forbidden - can only create checkpoint for own task"),
         (status = 404, description = "Task not found"),
         (status = 500, description = "Internal server error"),
+        (status = 503, description = "Task has no assigned daemon"),
     ),
     tag = "Mesh Supervisor"
 )]
@@ -749,7 +751,7 @@ pub async fn create_checkpoint(
 
     let pool = state.db_pool.as_ref().unwrap();
 
-    // Get task
+    // Get task and daemon_id
     let task = match repository::get_task(pool, task_id).await {
         Ok(Some(t)) => t,
         Ok(None) => {
@@ -767,16 +769,37 @@ pub async fn create_checkpoint(
         }
     };
 
-    // TODO: Implement checkpoint creation via daemon command
-    // For now, checkpoints should be created by the task itself via git commands
-    let _ = (task, request);
+    let Some(daemon_id) = task.daemon_id else {
+        return (
+            StatusCode::SERVICE_UNAVAILABLE,
+            Json(ApiError::new("NO_DAEMON", "Task has no assigned daemon")),
+        ).into_response();
+    };
+
+    // Send CreateCheckpoint command to daemon
+    let cmd = DaemonCommand::CreateCheckpoint {
+        task_id,
+        message: request.message.clone(),
+    };
 
+    if let Err(e) = state.send_daemon_command(daemon_id, cmd).await {
+        tracing::error!(error = %e, "Failed to send CreateCheckpoint command");
+        return (
+            StatusCode::INTERNAL_SERVER_ERROR,
+            Json(ApiError::new("COMMAND_FAILED", "Failed to send command to daemon")),
+        ).into_response();
+    }
+
+    // Return accepted - the checkpoint result will be delivered via WebSocket
+    // and stored in the database by the daemon message handler
     (
-        StatusCode::NOT_IMPLEMENTED,
-        Json(ApiError::new(
-            "NOT_IMPLEMENTED",
-            "Checkpoint creation via API not yet implemented. Use git commands directly in the task.",
-        )),
+        StatusCode::ACCEPTED,
+        Json(CheckpointResponse {
+            task_id,
+            checkpoint_number: 0, // Will be assigned by DB on actual creation
+            commit_sha: "pending".to_string(),
+            message: request.message,
+        }),
     ).into_response()
 }