feat(investment): add portfolio allocation targets and interest receivable/post/receive lifecycle

Adds a Portfolio Allocation (Target vs Actual %) section to the Investment
Dashboard, and reworks Investment Interest into the full accrual lifecycle:
Interest Receivable, FD/Govt./Bond Interest Calculation & Post, and Interest
Receive, plus the existing registers.

Interest Calculation & Post now tracks cumulative posted/received amounts
per holding instead of recomputing full accrued interest on every click
(which previously double-counted on repeat posting). Holdings classified
Non-Performing (Sub-Standard/Doubtful/Loss) are excluded from accrual
posting per RBI norms — their interest accrues in memo/suspense only and is
recognised solely on actual cash receipt via Interest Receive.

Also bumps the production initial-bundle budget in angular.json (13/14mb ->
15/17mb) since the growing set of eagerly-loaded feature modules (Investment,
NPA, Reconciliation, GL Reports, OSS Returns) pushed the build past the old
limit.

src/app/investment/investment-dashboard/investment-dashboard.component.html

@@ -78,6 +78,58 @@
     </table>
   </div>
 
+  <div class="pg-card">
+    <div class="pos-section-label">Portfolio Allocation — Target vs Actual</div>
+    <table class="pg-table">
+      <thead>
+        <tr>
+          <th>Instrument Type</th>
+          <th class="num">Target %</th>
+          <th class="num">Actual %</th>
+          <th class="num">Actual Value</th>
+          <th class="num">Variance</th>
+          <th>Status</th>
+        </tr>
+      </thead>
+      <tbody>
+        @for (a of allocationVsTarget; track a.type) {
+          <tr>
+            <td>{{ a.label }}</td>
+            <td class="num">{{ a.targetPct }}%</td>
+            <td class="num">{{ a.actualPct }}%</td>
+            <td class="num">₹{{ a.actualValue | number: '1.2-2' }}</td>
+            <td
+              class="num"
+              [class.col-out]="a.statusLabel !== 'Within Target'"
+              [class.col-in]="a.statusLabel === 'Within Target'"
+            >
+              {{ a.variancePct > 0 ? '+' : '' }}{{ a.variancePct }}%
+            </td>
+            <td>
+              <span
+                class="inv-badge"
+                [class.inv-badge--active]="a.statusLabel === 'Within Target'"
+                [class.inv-badge--sold]="a.statusLabel === 'Over-Allocated'"
+                [class.inv-badge--written_off]="a.statusLabel === 'Under-Allocated'"
+              >
+                {{ a.statusLabel }}
+              </span>
+            </td>
+          </tr>
+        }
+      </tbody>
+      <tfoot>
+        <tr class="cctr-total-row">
+          <td>Total</td>
+          <td class="num">100%</td>
+          <td class="num">100%</td>
+          <td class="num">₹{{ totalFaceValue | number: '1.2-2' }}</td>
+          <td colspan="2"></td>
+        </tr>
+      </tfoot>
+    </table>
+  </div>
+
   <div class="pg-card">
     <div class="pos-section-label">Due-Date Diary — Maturing Within 90 Days</div>
     @if (maturingSoon.length === 0) {