Show compare sides on the board and fix missing/extra row cells.

Enrich run detail with before/after NE labels, and keep present-side values readable for added/removed rows instead of striking them out.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/src/i18n/en.ts

@@ -338,6 +338,10 @@ const en = {
     beforeBatch: "Before batch",
     afterTask: "After task",
     afterBatch: "After batch",
+    sideBefore: "Before",
+    sideAfter: "After",
+    sidesVs: "vs",
+    sidesTitle: "Compare sides",
     pick: "Select…",
     sameAsBefore: "Same as before / select…",
     autoHint: "auto: new after-task batches trigger compare",

web/src/i18n/zh.ts

@@ -338,6 +338,10 @@ const zh = {
     beforeBatch: "操作前批次",
     afterTask: "操作后任务",
     afterBatch: "操作后批次",
+    sideBefore: "操作前",
+    sideAfter: "操作后",
+    sidesVs: "比对",
+    sidesTitle: "比对双方",
     pick: "选择…",
     sameAsBefore: "同操作前 / 选择…",
     autoHint: "auto：操作后任务新批次到达会自动跑比对",