feat(shares): close share account directly on withdrawal approval; drop separate closure-request flow

Replaces the auto-submit-closure-request behavior with an immediate
account close, in the same approval action, when a withdrawal brings
shares to zero — matching the backend's new single-step close-on-
approval flow. Removes the now-unneeded Share Closure Request feature
entirely: dedicated create/list components (Clerk Dashboard + Approval
Center), routes, nav links, and the "eligible for closure" banner on
the Share Account view.

Also adds a clear "this will close the account" notice wherever a
withdrawal would zero out the account's shares — the standalone Share
Withdrawal Request page (submit + review) and Transaction Entry's
Share Redemption Transfer confirm dialog — styled as an amber warning
callout rather than a plain info line. Trims that confirm dialog to
just the required details (dropped the redundant ECS A/C No. line and
the validation-checklist block) and compacts its overall size.

src/app/cashier/transaction-entry/transaction-entry.component.scss

@@ -2003,12 +2003,12 @@ select.te-cell {
 
 .te-alert-box {
   display: flex;
-  width: 480px;
-  max-width: 96vw;
-  border-radius: 16px;
+  width: 400px;
+  max-width: 94vw;
+  border-radius: 14px;
   overflow: hidden;
   box-shadow:
-    0 32px 80px rgb(0 0 0 / 35%),
+    0 24px 60px rgb(0 0 0 / 32%),
     0 0 0 1px rgb(255 255 255 / 8%);
   animation: te-pop-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
 
@@ -2018,32 +2018,35 @@ select.te-cell {
     flex-direction: column;
     align-items: center;
     justify-content: center;
-    gap: 10px;
-    width: 76px;
+    gap: 8px;
+    width: 56px;
     flex-shrink: 0;
-    padding: 24px 0;
+    padding: 16px 0;
   }
 
   &__sidebar-icon {
-    width: 40px;
-    height: 40px;
+    width: 32px;
+    height: 32px;
     border-radius: 50%;
     display: flex;
     align-items: center;
     justify-content: center;
     background: rgb(255 255 255 / 20%);
+    box-shadow:
+      0 0 0 1px rgb(255 255 255 / 15%),
+      inset 0 1px 2px rgb(255 255 255 / 25%);
 
     svg {
-      width: 22px;
-      height: 22px;
+      width: 17px;
+      height: 17px;
       stroke: #fff;
     }
   }
 
   &__sidebar-type {
-    font-size: 8px;
+    font-size: 7px;
     font-weight: 900;
-    letter-spacing: 0.12em;
+    letter-spacing: 0.1em;
     color: rgb(255 255 255 / 70%);
     text-transform: uppercase;
     writing-mode: vertical-lr;
@@ -2053,6 +2056,7 @@ select.te-cell {
   // ── Right content ─────────────────────────────────────────────────────────
   &__content {
     flex: 1;
+    min-width: 0;
     background: #fff;
     display: flex;
     flex-direction: column;
@@ -2062,12 +2066,12 @@ select.te-cell {
     display: flex;
     align-items: flex-start;
     justify-content: space-between;
-    padding: 20px 20px 12px;
+    padding: 14px 16px 8px;
     border-bottom: 1px solid #f1f5f9;
 
     h3 {
       margin: 0;
-      font-size: 15px;
+      font-size: 13.5px;
       font-weight: 800;
       color: #0f172a;
       letter-spacing: -0.02em;
@@ -2091,52 +2095,87 @@ select.te-cell {
 
   &__lines {
     flex: 1;
-    padding: 14px 20px;
+    max-height: 60vh;
+    overflow-y: auto;
+    padding: 10px 16px;
   }
 
   &__desc {
-    margin: 0 0 10px;
-    font-size: 12.5px;
+    margin: 0 0 8px;
+    font-size: 11.5px;
     color: #64748b;
-    line-height: 1.55;
+    line-height: 1.5;
   }
 
   &__kv {
     display: flex;
     align-items: center;
     justify-content: space-between;
-    padding: 7px 12px;
-    margin: 4px 0;
+    gap: 10px;
+    padding: 5px 10px;
+    margin: 3px 0;
     background: #f8fafc;
-    border-radius: 8px;
+    border-radius: 7px;
     border-left: 3px solid #e2e8f0;
+    transition: background-color 0.15s;
+
+    &:hover {
+      background: #f1f5f9;
+    }
   }
 
   &__kv-k {
-    font-size: 12px;
+    font-size: 11px;
     font-weight: 700;
     color: #334155;
   }
 
   &__kv-v {
-    font-size: 12px;
+    font-size: 11px;
     font-weight: 600;
     color: #475569;
     font-variant-numeric: tabular-nums;
+    text-align: right;
   }
 
   &__foot {
-    margin: 10px 0 0;
-    font-size: 11px;
+    margin: 8px 0 0;
+    font-size: 10px;
     color: #94a3b8;
     font-style: italic;
+    line-height: 1.4;
+  }
+
+  &__callout {
+    display: flex;
+    align-items: flex-start;
+    gap: 8px;
+    margin: 8px 0;
+    padding: 8px 10px;
+    background: #fffbeb;
+    border: 1px solid #fde68a;
+    border-left: 3px solid #d97706;
+    border-radius: 9px;
+    font-size: 11px;
+    font-weight: 600;
+    color: #92400e;
+    line-height: 1.45;
+    animation: te-pop-in 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
+
+    svg {
+      width: 14px;
+      height: 14px;
+      flex-shrink: 0;
+      margin-top: 1px;
+      color: #d97706;
+    }
   }
 
   &__actions {
     display: flex;
     justify-content: flex-end;
     gap: 8px;
-    padding: 14px 20px;
+    padding: 10px 16px;
     border-top: 1px solid #f1f5f9;
     background: #fafafa;
   }
@@ -2204,11 +2243,11 @@ select.te-cell {
   display: inline-flex;
   align-items: center;
   justify-content: center;
-  padding: 8px 20px;
-  min-width: 90px;
-  border-radius: 8px;
+  padding: 7px 16px;
+  min-width: 76px;
+  border-radius: 7px;
   border: none;
-  font-size: 12.5px;
+  font-size: 12px;
   font-weight: 700;
   cursor: pointer;
   transition: