feat(fixed-deposits): FD funding rules and no FD withdrawals from clerk/cashier requests

New FixedDepositFundingValidator, used on every path money can reach an FD:
- an FD is funded once, with exactly its principal: it must be active and not matured,
  hold no deposit yet, and the amount must equal its deposit amount;
- when funded from a Savings/Current account (clerk Bank/Fund Transfer), that account
  must be a Savings or Current account, active, not debit-frozen (sub-status BLOCK /
  BLOCK_DEBIT), out of lock-in, belong to the FD's client or be held jointly with them,
  and have enough available balance after holds, lien, clearing holds and minimum
  balance (plus overdraft for current accounts).

Applied in:
- FD deposit command (counter / FD screen / approved cashier deposit requests);
- cashier deposit request submit, so the counter sees the reason at once;
- clerk Disbursement / Collection / Fund Transfer / Bank Transfer, at submit and again
  at approval before the request is locked; one request funds FDs of one customer, an
  FD appears once, and an FD can never be a debit leg. After posting, each funded FD's
  maturity date and amount are recomputed (new
  DepositAccountWritePlatformService.recalculateFixedDepositMaturity), since the direct
  book credit does not do it;
- clerk withdrawal request submit refuses an FD: money leaves an FD only through its
  maturity or premature closure.

Previously a direct book debit in Collection / Bank Transfer could take money out of an
FD, bypassing the FD's own withdrawal refusal, and an FD could be credited any number of
times for any amount.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

fineract-savings/src/main/java/org/apache/fineract/portfolio/savings/service/DepositAccountWritePlatformService.java

@@ -39,6 +39,13 @@ public interface DepositAccountWritePlatformService {
 
     CommandProcessingResult depositToFDAccount(Long savingsId, JsonCommand command);
 
+    /**
+     * Recomputes a fixed deposit's maturity date and amount from its real transaction history. Used after an FD
+     * is funded by a direct book credit (clerk Bank Transfer / Fund Transfer / Disbursement), which does not go
+     * through {@link #depositToFDAccount}.
+     */
+    void recalculateFixedDepositMaturity(Long savingsId);
+
     CommandProcessingResult depositToRDAccount(Long savingsId, JsonCommand command);
 
     CommandProcessingResult withdrawal(Long savingsId, JsonCommand command, DepositAccountType depositAccountType);