fix: expose agent_output and agent_patch in TaskResult and API responses

Required for miners to construct term-challenge Submission with agent_output field.

Author: echobt

src/executor.rs

@@ -421,6 +421,8 @@ async fn run_task_pipeline(
     result.reward = if all_passed { 1.0 } else { 0.0 };
     result.test_results = test_results;
     result.test_output = test_output_combined;
+    result.agent_output = agent_output;
+    result.agent_patch = agent_patch;
 
     Ok(result)
 }

src/handlers.rs

@@ -346,6 +346,8 @@ async fn get_batch_tasks(
                 "passed": t.passed,
                 "reward": t.reward,
                 "test_output": t.test_output,
+                "agent_output": t.agent_output,
+                "agent_patch": t.agent_patch,
                 "error": t.error,
                 "duration_ms": t.duration_ms,
             })
@@ -378,6 +380,8 @@ async fn get_task(
         "reward": task.reward,
         "test_results": task.test_results,
         "test_output": task.test_output,
+        "agent_output": task.agent_output,
+        "agent_patch": task.agent_patch,
         "error": task.error,
         "duration_ms": task.duration_ms,
     })))

src/session.rs

@@ -44,6 +44,8 @@ pub struct TaskResult {
     pub reward: f64,
     pub test_results: Vec<TaskTestResult>,
     pub test_output: String,
+    pub agent_output: String,
+    pub agent_patch: String,
     pub error: Option<String>,
     pub duration_ms: Option<u64>,
 }
@@ -57,6 +59,8 @@ impl TaskResult {
             reward: 0.0,
             test_results: Vec::new(),
             test_output: String::new(),
+            agent_output: String::new(),
+            agent_patch: String::new(),
             error: None,
             duration_ms: None,
         }