Improve incremental review output and fix todo tracker race (#529)

* improve incremental review output and fix todo tracker race

- reviewed changes section: summarize at logical-change level with
  past-tense verbs, not per-file enumerations
- add TodoTracker.completeAll() to mark all non-cancelled items as
  completed before snapshotting the collapsible in review/progress posts

Made-with: Cursor

* completeAll -> completeInProgress: only mark in-progress items as completed

Pending items that were genuinely skipped stay as-is in the collapsible,
so the task list honestly reflects what the agent actually did.

Made-with: Cursor

mcp/comment.ts

@@ -386,6 +386,7 @@ export function ReportProgressTool(ctx: ToolContext) {
       if (!params.target_plan_comment && ctx.toolState.todoTracker) {
         ctx.toolState.todoTracker.cancel();
         await ctx.toolState.todoTracker.settled();
+        ctx.toolState.todoTracker.completeInProgress();
         const collapsible = ctx.toolState.todoTracker.renderCollapsible();
         if (collapsible) {
           body = `${body}\n\n${collapsible}`;