fix: nominee share & joint ownership validation across all account types

- Block 0% nominee share in all steppers (Savings, FD, RD, Current) —
  Add button disabled via isValid, addNominee() guards < 1, nominee-form
  error condition fixed for value=0
- Joint ownership: default primary share 50%, enforce min 1% on blur,
  max 100% on input with DOM clamp via $event, auto-redistribute
  co-holders proportionally when primary share changes,
  isJointOwnershipValid guards each holder >= 1
- Pending/Rejected account tabs: normalize date format to 22 May 2026
  for both array and string date values from API

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/current-accounts/current-account-stepper/current-account-currency-step/current-account-currency-step.component.html

@@ -123,7 +123,12 @@
               <button type="button" class="nom-cancel-btn" (click)="showNomineeForm = false; nomineeError = ''">
                 Cancel
               </button>
-              <button type="button" class="nom-confirm-btn" (click)="addNominee()">
+              <button
+                type="button"
+                class="nom-confirm-btn"
+                [disabled]="!nomineeFormComp?.isValid"
+                (click)="addNominee()"
+              >
                 <i class="fas fa-plus"></i> Add
               </button>
             </div>

src/app/current-accounts/current-account-stepper/current-account-currency-step/current-account-currency-step.component.ts

@@ -83,6 +83,10 @@ export class CurrentAccountCurrencyStepComponent implements OnChanges {
         return;
       }
     }
+    if (!data.percentageShare || data.percentageShare < 1) {
+      this.nomineeError = 'Share must be at least 1%.';
+      return;
+    }
     const newTotal = this.totalShare + (+data.percentageShare || 0);
     if (newTotal > 100) {
       this.nomineeError = `Total share cannot exceed 100%. Remaining: ${this.remainingShare}%`;

src/app/current-accounts/current-account-stepper/current-account-details-step/current-account-details-step.component.html

@@ -301,13 +301,18 @@
                     <input
                       class="soa-pct-input"
                       type="number"
-                      min="0"
+                      min="1"
                       max="100"
                       [(ngModel)]="primaryHolderShare"
                       [ngModelOptions]="{ standalone: true }"
                       placeholder="0"
+                      (input)="onPrimaryShareInput($event)"
+                      (blur)="onPrimaryShareBlur($event)"
                     />
                     <span class="soa-pct-unit">%</span>
+                    @if (primaryHolderShare !== null && primaryHolderShare !== undefined && primaryHolderShare < 1) {
+                      <div class="soa-pct-error">Min 1%</div>
+                    }
                   </td>
                   <td class="soa-td soa-td--center">
                     <span class="soa-sign-toggle soa-sign-toggle--mandatory">
@@ -370,8 +375,8 @@
                   <td class="soa-td soa-td--center">
                     <span
                       class="soa-pct-badge"
-                      [class.soa-pct-badge--ok]="totalJointSharePercentage === 100"
-                      [class.soa-pct-badge--warn]="totalJointSharePercentage !== 100"
+                      [class.soa-pct-badge--ok]="isJointOwnershipValid"
+                      [class.soa-pct-badge--warn]="!isJointOwnershipValid"
                     >
                       {{ totalJointSharePercentage }}%
                     </span>
@@ -395,10 +400,14 @@
             </div>
           }
 
-          @if (totalJointSharePercentage !== 100) {
+          @if (!isJointOwnershipValid) {
             <div class="soa-alert soa-alert--warn" style="margin-top: 8px">
               <mat-icon>warning_amber</mat-icon>
-              Total ownership is {{ totalJointSharePercentage }}%. It must equal 100%.
+              @if (totalJointSharePercentage !== 100) {
+                Total ownership is {{ totalJointSharePercentage }}%. It must equal 100%.
+              } @else {
+                Each holder must have at least 1% ownership share.
+              }
             </div>
           } @else {
             <div class="soa-alert soa-alert--ok" style="margin-top: 8px">

src/app/current-accounts/current-account-stepper/current-account-details-step/current-account-details-step.component.scss

@@ -1118,6 +1118,12 @@ $ni-bg: #f9fafb;
   margin-left: 2px;
 }
 
+.soa-pct-error {
+  font-size: 11px;
+  color: #ef4444;
+  margin-top: 2px;
+}
+
 .soa-no-action {
   color: #cbd5e1;
   font-size: 16px;

src/app/current-accounts/current-account-stepper/current-account-details-step/current-account-details-step.component.ts

@@ -99,7 +99,7 @@ export class CurrentAccountDetailsStepComponent implements OnInit {
   primaryClientName = '';
   primaryClientCif = '';
   primaryClientId: number | null = null;
-  primaryHolderShare = 0;
+  primaryHolderShare = 50;
 
   // ── Status of Account (RBI) ────────────────────────────────────────────
   readonly accountStatusOptions = [
@@ -412,6 +412,53 @@ export class CurrentAccountDetailsStepComponent implements OnInit {
     return (this.primaryHolderShare || 0) + this.jointHolders.reduce((sum, h) => sum + (h.sharePercentage || 0), 0);
   }
 
+  onPrimaryShareInput(event: Event): void {
+    const input = event.target as HTMLInputElement;
+    let val = +input.value;
+    if (val > 100) {
+      val = 100;
+      input.value = '100';
+    }
+    this.primaryHolderShare = val;
+    if (val >= 1) this.redistributeCoHolders();
+  }
+
+  onPrimaryShareBlur(event: Event): void {
+    const input = event.target as HTMLInputElement;
+    let val = +input.value;
+    if (!val || val < 1) {
+      val = 1;
+      input.value = '1';
+      this.primaryHolderShare = 1;
+      this.redistributeCoHolders();
+    }
+  }
+
+  private redistributeCoHolders(): void {
+    if (this.jointHolders.length === 0) return;
+    const remaining = 100 - this.primaryHolderShare;
+    const totalCo = this.jointHolders.reduce((sum, h) => sum + (h.sharePercentage || 0), 0);
+    if (totalCo === 0) return;
+    let allocated = 0;
+    this.jointHolders.forEach((h, i) => {
+      if (i === this.jointHolders.length - 1) {
+        h.sharePercentage = Math.max(0, remaining - allocated);
+      } else {
+        const share = Math.round((h.sharePercentage / totalCo) * remaining);
+        h.sharePercentage = Math.max(0, share);
+        allocated += h.sharePercentage;
+      }
+    });
+  }
+
+  get isJointOwnershipValid(): boolean {
+    return (
+      this.totalJointSharePercentage === 100 &&
+      this.primaryHolderShare >= 1 &&
+      this.jointHolders.every((h) => h.sharePercentage >= 1)
+    );
+  }
+
   get mandatoryJointCount(): number {
     return this.jointHolders.filter((h) => h.isMandatory).length;
   }