feat: add account metadata and interest analytics

backend/src/services/import.ts

@@ -171,7 +171,7 @@ export async function importStatement(
     let isNewAccount = false;
 
     const accResult = await client.query(
-      'SELECT id FROM accounts WHERE bank = $1 AND account_number = $2',
+      'SELECT id, account_type FROM accounts WHERE bank = $1 AND account_number = $2',
       [data.bank, data.statement.accountNumber],
     );
 
@@ -206,6 +206,14 @@ export async function importStatement(
       throw new Error("Category 'Поступления' is missing");
     }
     const incomeCategoryId = Number(incomeCategoryResult.rows[0].id);
+    const accountType = accResult.rows[0]?.account_type ?? null;
+    const investmentCategoryResult = await client.query(
+      `SELECT id FROM categories WHERE name = 'Инвестиции' AND type = 'transfer' AND is_active = TRUE LIMIT 1`,
+    );
+    const investmentCategoryId = investmentCategoryResult.rows[0]
+      ? Number(investmentCategoryResult.rows[0].id)
+      : null;
+    const isInvestmentAccount = ['brokerage', 'iis', 'savings'].includes(accountType);
 
     // Insert transactions
     const insertedIds: number[] = [];
@@ -218,9 +226,11 @@ export async function importStatement(
         tx.description.toLowerCase().includes(CASHBACK_KEYWORD);
       const dir = isCashbackCommissionImport
         ? 'income'
-        : determineDirection(tx.amountSigned, tx.description);
-      const categoryId = isCashbackCommissionImport ? incomeCategoryId : null;
-      const isCategoryConfirmed = isCashbackCommissionImport;
+        : isInvestmentAccount ? 'transfer' : determineDirection(tx.amountSigned, tx.description);
+      const categoryId = isCashbackCommissionImport
+        ? incomeCategoryId
+        : isInvestmentAccount ? investmentCategoryId : null;
+      const isCategoryConfirmed = isCashbackCommissionImport || isInvestmentAccount;
 
       const result = await client.query(
         `INSERT INTO transactions
@@ -263,6 +273,7 @@ export async function importStatement(
                OR (cr.match_type = 'starts_with' AND t2.description ILIKE cr.pattern || '%')
              )
            WHERE t2.id = ANY($1::bigint[])
+             AND t2.is_category_confirmed = FALSE
            ORDER BY t2.id, cr.priority DESC, cr.id ASC
          ) sub
          WHERE t.id = sub.tx_id`,