feat(insights): full-width category items with more space

Inside "Alert categories" and "Watch list", the category cards are now a
full-width single-column stack instead of a narrow multi-column grid, with
more breathing room (larger gap, roomier headers + ticket rows, taller
expanded list). Each card was already a click-to-expand accordion and
remains so — CSS-only, index.tsx unchanged. The section-level collapse from
2.3.1 still works (.grid[hidden] preserved).

- Insights.module.scss: .grid grid -> flex column (gap 16); cardHead
  padding 16/20; cardTitle 14px; row padding 8/20; list max-height 440
- bump 2.3.1 -> 2.3.2 (root + client), CHANGELOG [2.3.2]
- engineer artifact + INDEX; verifier-log PASS entry

verifier PASS: reproduced tsc + vite build + npm test 9/9; confirmed
flex-column + .grid[hidden] collapse in compiled CSS; no row-grid
regression; no new dependency.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VEsaHQx8cXr1hFrKU42UK6

client/package.json

@@ -1,7 +1,7 @@
 {
   "name": "forge-client",
   "private": true,
-  "version": "2.3.1",
+  "version": "2.3.2",
   "type": "module",
   "scripts": {
     "dev": "vite",

client/src/pages/Insights/Insights.module.scss

@@ -54,10 +54,9 @@
 }
 
 .grid {
-  display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
-  gap: $s-3;
-  align-items: start;
+  display: flex;
+  flex-direction: column;
+  gap: $s-4;
 }
 .grid[hidden] { display: none; }
 
@@ -75,13 +74,13 @@
   align-items: center;
   justify-content: space-between;
   gap: $s-3;
-  padding: 12px 14px;
+  padding: $s-4 $s-5;
   border: none;
   background: transparent;
   cursor: pointer;
   &:hover { background: var(--surface-alt); }
 }
-.cardTitle { font-size: 13px; font-weight: 600; color: var(--text); }
+.cardTitle { font-size: 14px; font-weight: 600; color: var(--text); }
 .counts { display: flex; align-items: center; gap: 6px; }
 .problem {
   min-width: 22px; text-align: center; font-size: 11px; font-weight: 700;
@@ -92,18 +91,18 @@
   padding: 1px 7px; border-radius: 999px; background: var(--surface-alt); color: var(--text-muted);
 }
 
-.list { list-style: none; border-top: 1px solid var(--border); max-height: 340px; overflow-y: auto; }
+.list { list-style: none; border-top: 1px solid var(--border); max-height: 440px; overflow-y: auto; }
 .row {
   display: grid;
   grid-template-columns: auto 1fr auto auto auto;
   align-items: center;
   gap: $s-2;
-  padding: 6px 14px;
+  padding: $s-2 $s-5;
   font-size: 12px;
   border-bottom: 1px solid var(--border);
   &:last-child { border-bottom: none; }
 }
-.emptyRow { padding: 10px 14px; color: var(--text-dim); font-size: 12px; }
+.emptyRow { padding: $s-3 $s-5; color: var(--text-dim); font-size: 12px; }
 .rowNum { display: inline-flex; align-items: center; gap: 3px; font-family: var(--mono); font-weight: 700; color: var(--primary); white-space: nowrap; }
 .rowDesc { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
 .rowMeta { color: var(--text-muted); white-space: nowrap; max-width: 110px; overflow: hidden; text-overflow: ellipsis; }