fix(docx): hold a composed chip's row less the borders both editors draw outside it

CHANGELOG.md

@@ -8,15 +8,26 @@ follow semantic versioning; release dates are ISO 8601.
 
 ### Public API
 
+- **`CobaltRota`'s outlined chips are as tall in Word as on the page.** A shape composed in a
+  table cell is written as a one-cell table holding its row at least the outline's height, less
+  the heavier border, which LibreOffice was taken to add to it once. Both editors draw the cell's
+  top and bottom borders outside that height: a 9.2pt chip outlined with a 1.125pt border stood
+  10.3pt tall in Word and 10.2pt in LibreOffice, and each staff row holding one stood 1.1pt
+  taller than the page's; the rota's last row stood 6.5pt low in Word, now 2.4. Where its padding
+  does not hold the top border, the row now holds the outline's height less the borders drawn
+  outside it — the top as far as no space above took it — as a panel with a placement already
+  did. `CobaltRota`'s p90 drift falls from 6.4pt to 2.9 in Word and from 7.3pt to 3.9
+  in LibreOffice.
+
 - **`MerchantInvoice` fits its page in Word again.** Two things pushed its footer row onto a
   second page.
   - Its payment panel opens a table cell, so no space above could take the panel's 0.875pt
     top border, which Word draws above a cell's content. Every line inside stood that much
     low, and the row that much taller. A panel with less space above it than its top border now
     takes what of the border neither that space nor its padding holds out of the space above
     its first line, where that line has some; where its row holds the page's height, that
-    height is less the borders Word draws outside it. LibreOffice, which adds the heavier border
-    to a row's height once, draws such a panel with two borders that border's width shorter.
+    height is less the borders Word draws outside it. LibreOffice, where the panel's content
+    sets its height, draws `MerchantInvoice`'s panel that border's width shorter.
   - Its footer reaches 9.8pt from the page's edge, past the page's 3.4pt margin, and Word
     moved the body clear of it. A band alone of its kind reaching past the margin, by any
     more than a twentieth of a point, now writes that margin