完善 DirectProject 上下文标签过滤

覆盖 Codex 内部与外部上下文包裹格式

保持普通用户文本的完整标签引用可见

apps/ai-game-creator-shell/src-tauri/src/agent/direct_project_history.rs

@@ -16,6 +16,7 @@ const DIRECT_PROJECT_INTERNAL_CONTEXT_KINDS: &[&str] = &[
 ];
 
 const DIRECT_PROJECT_CONTEXTUAL_USER_TEXT_MARKERS: &[(&str, &str)] = &[
+    ("# AGENTS.md instructions", "</INSTRUCTIONS>"),
     ("<environment_context>", "</environment_context>"),
     ("<skill>", "</skill>"),
     ("<user_shell_command>", "</user_shell_command>"),
@@ -25,6 +26,24 @@ const DIRECT_PROJECT_CONTEXTUAL_USER_TEXT_MARKERS: &[(&str, &str)] = &[
     ("<goal_context>", "</goal_context>"),
 ];
 
+fn is_known_contextual_user_text(text: &str) -> bool {
+    let text = text.trim();
+    if DIRECT_PROJECT_CONTEXTUAL_USER_TEXT_MARKERS
+        .iter()
+        .any(|(start, end)| text.starts_with(start) && text.ends_with(end))
+    {
+        return true;
+    }
+    if text.starts_with("<codex_internal_context") && text.ends_with("</codex_internal_context>") {
+        return true;
+    }
+    text.starts_with("<external_")
+        && text
+            .split_once('>')
+            .and_then(|(start, _)| start.strip_prefix("<external_"))
+            .is_some_and(|key| text.ends_with(&format!("</external_{key}>")))
+}
+
 pub(crate) fn is_direct_project_internal_context_item(item: &Value) -> bool {
     if matches!(
         item.get("role").and_then(Value::as_str),
@@ -51,10 +70,7 @@ pub(crate) fn is_direct_project_internal_context_item(item: &Value) -> bool {
                 let Some(text) = part.get("text").and_then(Value::as_str) else {
                     return false;
                 };
-                let text = text.trim();
-                DIRECT_PROJECT_CONTEXTUAL_USER_TEXT_MARKERS
-                    .iter()
-                    .any(|(start, end)| text.starts_with(start) && text.ends_with(end))
+                is_known_contextual_user_text(text)
             })
         })
 }