Tune tall-page auto zoom to ~88% and add pen/zoom note

app.py

@@ -343,7 +343,8 @@ math[display="block"] { display: block; overflow-x: auto; max-width: 100%; }
   window.__ocrWorkspaceZoomInit = true;
 
   const stateByRoot = new WeakMap();
-  const targetZoomPct = 100;
+  const targetZoomPct = 88;
+  const nearTargetTolerancePct = 3;
   const tinyFitThresholdPct = 45;
 
   const getState = (root) => {
@@ -395,7 +396,11 @@ math[display="block"] { display: block; overflow-x: auto; max-width: 100%; }
 
     const step = () => {
       const current = parseZoomPct(root);
-      if (current == null || current >= targetZoomPct || steps >= 20) {
+      if (
+        current == null ||
+        current >= (targetZoomPct - nearTargetTolerancePct) ||
+        steps >= 20
+      ) {
         state.busy = false;
         state.applied = true;
         return;
@@ -1677,11 +1682,12 @@ with gr.Blocks(**blocks_kwargs) as demo:
         2. Choose **Input Scope**:
            - `Entire Page` for the full page.
            - `Selected Region` for a specific area.
-        2a. Workspace keeps native image resolution for clarity. For very tall pages, it auto-boosts from tiny fit view toward width-friendly zoom.
+        2a. Workspace keeps native image resolution for clarity. For very tall pages, it auto-boosts from tiny fit view toward ~88% width-friendly zoom.
         3. For `Selected Region`, use the **Image Workspace**:
            - Recommended: freehand selection (draw/highlight target); app uses an automatic bounding box around your marks.
            - Optional rectangle selection: use the **Crop** tool.
            - Freehand/highlight ink is semi-transparent so underlying content stays visible.
+           - Current known behavior: after zooming in/out, freehand stroke display may appear fully on mouse release (selection is still captured correctly).
            - Optional multi-select: click **Add Region** after each selection.
            - **Add Region** snapshots only newly drawn pixels so zoom/pan stays in place while you continue selecting.
            Then click **Extract**.