fix: load final state on project entry; replay only on Replay button (Issue #1227)

[spider-yamet]

Summary

Tasks no longer auto-replay when entering a project. The UI shows the final state immediately on entry and replays only when the user clicks the Replay button.

Changes

Load vs Replay behavior

• Load (project entry): Loads final state with no animation, waits for completion, then navigates.
• Replay (Replay button): Replays with animation and navigates immediately.

Implementation

• src/lib/replay.ts: Added loadProjectFromHistory() for loading final state; replayProject() / replayActiveTask() for Replay button.
• src/store/projectStore.ts: Added loadProjectFromHistory (delay 0, no animation); replayProject uses delay 0.2 for animation.
• src/store/chatStore.ts: Replay flow waits for SSE stream to finish before resolving so load can complete before navigation.
• Entry points use loadProjectFromHistory when opening a project: ProjectGroup, HistorySidebar, SearchHistoryDialog, Project.tsx, ProjectDialog.
• ChatBox Replay button still uses replayActiveTask → replayProject.

Closes #1227

[spider-yamet]

Untitled.3.mp4

now it is no longer refresh whenever switch the project, just relying the refresh on refresh button

[spider-yamet]

@Wendong-Fan @bytecii @Pakchoioioi @4pmtong Please review my PR.
Regards

[bytecii]

Should we check whether current active project id is still the loadProjectId? If not we should cancel the loading?

Same for the function in replayProject

for (let index = 0; index < taskIds.length; index++) {
        const taskId = taskIds[index];
        console.log(
          `[ProjectStore] Creating replay for task ${index + 1}/${taskIds.length}: ${taskId}`
        );

[spider-yamet]

@bytecii I updated by following your comment, you can check on current PR.

[bytecii]

Also can we add some unit tests for the replay? Thanks.

[bytecii]

Improve this such as?

if (type === 'replay') {
  try {
    await ssePromise;
  } catch (err) {
    if (err instanceof DOMException && err.name === 'AbortError') {
      // Expected: stream closed normally, we aborted to resolve the promise
      return;
    }
    // Unexpected: actual error during stream
    console.error(`SSE stream failed for task ${newTaskId}:`, err);
    throw err; // Let loadProjectFromHistory handle it
  }
}

[spider-yamet]

@bytecii I improved try catch clause for exception handling by following your comment.

[spider-yamet]

@bytecii I updated the code logics and added test cases by following your comment. Please review my PR.

All the test cases are passing now.

[spider-yamet]

@bytecii @Wendong-Fan could you please review the PR?

Regards

[spider-yamet]

@Wendong-Fan @bytecii Could you please check PR status?