port: upstream PRs #1311 (inter-word spacing fix) and #1322 (zip early exit)

PR #1311: Replace separate spaceWidth + getSpaceKernAdjust() with a
single getSpaceAdvance() that combines space glyph advance and kerning
in fixed-point before snapping to pixels, eliminating +/-1 px rounding
drift in text layout.

PR #1322: Add early exit to fillUncompressedSizes() once all target
entries are matched, avoiding unnecessary central directory traversal.

Also updates tracking docs and verifies PR #1329 (reader utils refactor)
matches upstream after merge.

Made-with: Cursor

lib/ZipFile/ZipFile.cpp

@@ -332,6 +332,7 @@ int ZipFile::fillUncompressedSizes(std::vector<SizeTarget>& targets, std::vector
   file.seek(zipDetails.centralDirOffset);
 
   int matched = 0;
+  const int targetCount = static_cast<int>(targets.size());
   uint32_t sig;
   char itemName[256];
 
@@ -372,6 +373,10 @@ int ZipFile::fillUncompressedSizes(std::vector<SizeTarget>& targets, std::vector
         }
         ++it;
       }
+
+      if (matched >= targetCount) {
+        break;
+      }
     } else {
       file.seekCur(nameLen);
     }