feat(investment,npa): RBI-grounded targets, GL-tracked interest posting, date/search pickers

- Correct Investment portfolio allocation and Loan Origination product-mix targets against
  RBI's UCB SLR/Non-SLR framework and PSL circulars, with a Target Basis column distinguishing
  RBI-mandated vs board-policy rows (Excel export included).
- Expand Investment holdings dataset with more near-term maturities so the Due-Date Diary
  reflects a realistic spread across FD/Govt Security/Non-SLR/Bond.
- Add From/To period-based Interest Calculation & Post (with GL selection for both posting and
  receiving) across the Investment Interest module, FD Entry and Bond Entry screens; fix a bug
  where a posted period kept re-appearing as due since accrual wasn't tracked per-holding.
- Add a reusable DD-MM-YYYY date-picker component and roll it out across all Investment date
  fields.
- NPA Summary Report: drop SMA-0/1/2 from the stage-wise table (kept in Day-wise Overdue only).
- NPA Recovery Report: add Account Type / NPA Category / Target-vs-Actual columns, a shared
  Account Type filter driving both the account picker and the register, and a searchable
  (fixed-position, not clipped by card overflow) account select for long lists.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/loan-origination/loan-pipeline/loan-pipeline.component.ts

@@ -71,6 +71,9 @@ interface MixTargetRow {
   actualPct: number;
   variancePct: number;
   status: TargetStatus;
+  /** True only for the two rows whose target is an actual RBI PSL sub-target (Agriculture 18% /
+   *  Micro Enterprises 7.5% of ANBC) rather than an internal business-plan assumption. */
+  isRbiMandated: boolean;
 }
 
 type ViewId = 'pipeline' | 'new' | 'channel' | 'bc' | 'share' | 'target';
@@ -389,7 +392,8 @@ export class LoanPipelineComponent implements OnInit {
         targetPct,
         actualPct,
         variancePct: actualPct - targetPct,
-        status: targetStatus(actualPct, targetPct, 3)
+        status: targetStatus(actualPct, targetPct, 3),
+        isRbiMandated: p.code === 'KCC' || p.code === 'CC'
       };
     });
   }
@@ -413,7 +417,8 @@ export class LoanPipelineComponent implements OnInit {
         targetPct,
         actualPct,
         variancePct: actualPct - targetPct,
-        status: targetStatus(actualPct, targetPct, 3)
+        status: targetStatus(actualPct, targetPct, 3),
+        isRbiMandated: false
       };
     });
   }
@@ -626,6 +631,7 @@ export class LoanPipelineComponent implements OnInit {
           subtitle,
           headers: [
             'Mix',
+            'Target Basis',
             'Target %',
             'Actual %',
             'Variance (pp)',
@@ -633,6 +639,7 @@ export class LoanPipelineComponent implements OnInit {
           ],
           widths: [
             26,
+            18,
             12,
             12,
             14,
@@ -641,6 +648,7 @@ export class LoanPipelineComponent implements OnInit {
           rows: [
             ...this.productTargetRows.map((r) => [
               `Product — ${r.label}`,
+              r.isRbiMandated ? 'RBI PSL Sub-Target' : 'Internal Target',
               r.targetPct,
               Number(r.actualPct.toFixed(1)),
               Number(r.variancePct.toFixed(1)),
@@ -648,6 +656,7 @@ export class LoanPipelineComponent implements OnInit {
             ]),
             ...this.channelTargetRows.map((r) => [
               `Channel — ${r.label}`,
+              'Internal Target',
               r.targetPct,
               Number(r.actualPct.toFixed(1)),
               Number(r.variancePct.toFixed(1)),