补齐 DirectProject 更早历史入口

补充 DirectProject 初始历史 hasMore 时的按钮与滚动入口
修正 rebase 后 Tauri 命令与 Rust 测试辅助函数可见性
同步更新 DirectProject 历史恢复规范与里程碑验收记录

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

@@ -20,7 +20,7 @@ pub(crate) fn direct_codex_canonical_project_identity(
     ))
 }
 
-fn direct_codex_os_path_identity_bytes(path: &std::path::Path) -> Vec<u8> {
+pub(super) fn direct_codex_os_path_identity_bytes(path: &std::path::Path) -> Vec<u8> {
     #[cfg(unix)]
     {
         use std::os::unix::ffi::OsStrExt;
@@ -39,7 +39,10 @@ fn direct_codex_os_path_identity_bytes(path: &std::path::Path) -> Vec<u8> {
     path.as_os_str().to_string_lossy().as_bytes().to_vec()
 }
 
-fn direct_codex_project_identity_digest(path_identity: &[u8], project_id: &[u8]) -> String {
+pub(super) fn direct_codex_project_identity_digest(
+    path_identity: &[u8],
+    project_id: &[u8],
+) -> String {
     let mut digest = Sha256::new();
     digest.update(b"genarrative-direct-project-identity.v1\0");
     digest.update((path_identity.len() as u64).to_le_bytes());

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

@@ -7,7 +7,7 @@ use std::path::{Path, PathBuf};
 use std::sync::{Mutex, OnceLock};
 
 mod user_input;
-pub(crate) use user_input::chat_with_game_creator_direct_codex;
+pub(crate) use user_input::{chat_with_game_creator_direct_codex, normalize_direct_client_turn_id};
 
 const MAX_DIRECT_SYSTEM_PROMPT_CHARS: usize = 16 * 1024;
 const MIN_DIRECT_CLIENT_TURN_ID_CHARS: usize = 6;

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

@@ -5,7 +5,9 @@
 
 use super::*;
 
-fn normalize_direct_client_turn_id(client_turn_id: Option<&str>) -> Result<String, String> {
+pub(crate) fn normalize_direct_client_turn_id(
+    client_turn_id: Option<&str>,
+) -> Result<String, String> {
     let Some(client_turn_id) = client_turn_id else {
         return Err("Direct 客户端回合缺少稳定 clientTurnId，已拒绝创建可计费生成身份".to_string());
     };

apps/ai-game-creator-shell/src-tauri/src/commands.rs

@@ -5277,7 +5277,9 @@ pub(crate) async fn read_agent_runtime_error_detail(
     })
     .await
     .map_err(|error| format!("读取统一错误诊断后台任务失败：{error}"))?
+}
 
+#[tauri::command]
 pub(crate) async fn subscribe_direct_project_thread(
     project_path: String,
 ) -> Result<DirectThreadSubscriptionBootstrap, String> {

apps/ai-game-creator-shell/src/App.tsx

@@ -11867,6 +11867,9 @@ export function App({
     0,
     messages.length - visibleMessages.length,
   );
+  const hasEarlierConversationMessages =
+    hiddenConversationCount > 0 ||
+    (directCodexProductRuntime && directHistoryHasMore);
   const projectSupervisorTransientReply =
     projectSupervisorResponseStream?.accumulatedText.trim() ?? '';
   const projectSupervisorNeedsUserInput = agentRuntimeNeedsUserInput(
@@ -11963,7 +11966,7 @@ export function App({
   }
 
   function handleConversationScroll(event: UIEvent<HTMLElement>) {
-    if (hiddenConversationCount === 0) {
+    if (!hasEarlierConversationMessages) {
       return;
     }
     if (event.currentTarget.scrollTop <= 24) {
@@ -12129,6 +12132,7 @@ export function App({
         onOpenRuntimeConfig={() => setRuntimeConfigOpen(true)}
         onScroll={handleSupervisorChatScroll}
         onShowEarlierMessages={showEarlierConversationMessages}
+        hasEarlierConversationMessages={hasEarlierConversationMessages}
         onSubmit={handleProjectSupervisorOnlySubmit}
         onToolAction={handleProjectSupervisorToolAction}
         onUserInput={handleProjectSupervisorUserInput}
@@ -12173,6 +12177,7 @@ export function App({
         }
         directProcessKey={directCodexProcessKey}
         hiddenConversationCount={hiddenConversationCount}
+        hasEarlierConversationMessages={hasEarlierConversationMessages}
         messagesRef={supervisorChatMessagesRef}
         needsUserInput={
           directCodexProductRuntime ? false : projectSupervisorNeedsUserInput
@@ -12408,6 +12413,7 @@ export function App({
         }
         handleRuntimeConfigOpen={handleRuntimeConfigOpen}
         hiddenConversationCount={hiddenConversationCount}
+        hasEarlierConversationMessages={hasEarlierConversationMessages}
         llmConfigStatus={llmConfigStatus}
         loadProjectConversation={loadProjectConversation}
         localProject={localProject}

apps/ai-game-creator-shell/src/features/project-workspace/ProjectSupervisorView.tsx

@@ -85,6 +85,7 @@ type ProjectSupervisorViewProps = RuntimePanelProps & {
   directProcessDetail?: string;
   directProcessKey?: string;
   hiddenConversationCount: number;
+  hasEarlierConversationMessages?: boolean;
   messagesRef: RefObject<HTMLDivElement | null>;
   needsUserInput: boolean;
   onCancelConfirmation: () => void;
@@ -139,6 +140,7 @@ export function ProjectSupervisorView({
   directProcessDetail = '',
   directProcessKey = '',
   hiddenConversationCount,
+  hasEarlierConversationMessages = false,
   messagesRef,
   needsUserInput,
   onCancelConfirmation,
@@ -250,13 +252,15 @@ export function ProjectSupervisorView({
           aria-label={directCodex ? '陶泥儿消息' : '项目总控消息'}
           onScroll={onScroll}
         >
-          {hiddenConversationCount > 0 ? (
+          {hiddenConversationCount > 0 || hasEarlierConversationMessages ? (
             <button
               type="button"
               className="message-history-more"
               onClick={onShowEarlierMessages}
             >
-              {`显示更早 · 还有 ${hiddenConversationCount} 条对话`}
+              {hiddenConversationCount > 0
+                ? `显示更早 · 还有 ${hiddenConversationCount} 条对话`
+                : '显示更早的对话'}
             </button>
           ) : null}
           {visibleMessages.map((message, index) => (

apps/ai-game-creator-shell/src/features/project-workspace/ProjectWorkspaceChatPane.tsx

@@ -157,6 +157,7 @@ type ProjectWorkspaceChatPaneProps = {
   handleRevealCurrentProjectDirectory: () => Promise<void>;
   handleRuntimeConfigOpen: () => void;
   hiddenConversationCount: number;
+  hasEarlierConversationMessages?: boolean;
   llmConfigStatus: GameCreatorLlmConfigStatus | null;
   loadProjectConversation: (
     nextProjectPath: string,
@@ -256,6 +257,7 @@ export function ProjectWorkspaceChatPane({
   handleRevealCurrentProjectDirectory,
   handleRuntimeConfigOpen,
   hiddenConversationCount,
+  hasEarlierConversationMessages = false,
   llmConfigStatus,
   loadProjectConversation,
   localProject,
@@ -809,13 +811,15 @@ export function ProjectWorkspaceChatPane({
           </div>
         ) : null}
         <div className="message-list" onScroll={handleConversationScroll}>
-          {hiddenConversationCount > 0 ? (
+          {hiddenConversationCount > 0 || hasEarlierConversationMessages ? (
             <button
               type="button"
               className="message-history-more"
               onClick={showEarlierConversationMessages}
             >
-              {`显示更早 · 还有 ${hiddenConversationCount} 条对话`}
+              {hiddenConversationCount > 0
+                ? `显示更早 · 还有 ${hiddenConversationCount} 条对话`
+                : '显示更早的对话'}
             </button>
           ) : null}
           {visibleMessages.map((message, index) => (

apps/ai-game-creator-shell/src/features/project-workspace/SupervisorChatOnlyView.tsx

@@ -71,6 +71,7 @@ type SupervisorChatOnlyViewProps = {
   transientReply: string;
   hasConversationControls: boolean;
   hiddenConversationCount: number;
+  hasEarlierConversationMessages?: boolean;
   needsUserInput: boolean;
   visibleMessages: ChatMessage[];
   workspaceStatus: string;
@@ -108,6 +109,7 @@ export function SupervisorChatOnlyView({
   transientReply,
   hasConversationControls,
   hiddenConversationCount,
+  hasEarlierConversationMessages = false,
   needsUserInput,
   visibleMessages,
   workspaceStatus,
@@ -188,12 +190,16 @@ export function SupervisorChatOnlyView({
           aria-label={directCodex ? '陶泥儿消息' : '项目总控消息'}
           onScroll={handleScroll}
         >
-          {hiddenConversationCount > 0 ? (
+          {hiddenConversationCount > 0 || hasEarlierConversationMessages ? (
             <button
               type="button"
               className="message-history-more"
               onClick={onShowEarlierMessages}
-            >{`显示更早 · 还有 ${hiddenConversationCount} 条对话`}</button>
+            >
+              {hiddenConversationCount > 0
+                ? `显示更早 · 还有 ${hiddenConversationCount} 条对话`
+                : '显示更早的对话'}
+            </button>
           ) : null}
           {visibleMessages.map((message, index) => (
             <div