Implement unified frontend type system and migrate core modules

- Created src/lib/types/ae_types.ts to serve as the central repository for Aether object interfaces.
- Standardized interfaces to include the triple-ID pattern (id, [type]_id, [type]_id_random) for Dexie and V3 API compatibility.
- Migrated Account and JournalEntry modules to use ae_Account and ae_JournalEntry types.
- Added explicit Promise return types to all core data loading, creation, and update functions in migrated modules.

src/lib/ae_core/ae_core__account.ts

@@ -3,36 +3,10 @@ import { api } from '$lib/api/api';
 
 import { db_save_ae_obj_li__ae_obj } from '$lib/ae_core/core__idb_dexie';
 import { db_core } from '$lib/ae_core/db_core';
+import type { ae_Account } from '$lib/types/ae_types';
 
 const ae_promises: key_val = {};
 
-export interface Account {
-    id: string;
-    account_id: string;
-    account_id_random: string;
-
-    code?: string;
-    name: string;
-    short_name?: null | string;
-    description?: null | string;
-
-    enable: null | boolean;
-    enable_from?: null | Date;
-    enable_to?: null | Date;
-
-    hide?: null | boolean;
-    priority?: null | boolean;
-    sort?: null | number;
-    group?: null | string;
-    notes?: null | string;
-    created_on: Date;
-    updated_on?: null | Date;
-
-    // Computed or extra fields from views
-    tmp_sort_1?: string;
-    tmp_sort_2?: string;
-}
-
 // Updated 2026-01-06
 export async function load_ae_obj_id__account({
     api_cfg,
@@ -48,7 +22,7 @@ export async function load_ae_obj_id__account({
     params?: key_val;
     try_cache?: boolean;
     log_lvl?: number;
-}) {
+}): Promise<ae_Account | null> {
     if (log_lvl) {
         console.log(`*** load_ae_obj_id__account() *** account_id=${account_id}`);
     }
@@ -120,7 +94,7 @@ export async function load_ae_obj_li__account({
     params?: key_val;
     try_cache?: boolean;
     log_lvl?: number;
-}) {
+}): Promise<ae_Account[]> {
     if (log_lvl) {
         console.log(`*** load_ae_obj_li__account() ***`);
     }
@@ -174,7 +148,7 @@ export async function create_ae_obj__account({
     params?: key_val;
     try_cache?: boolean;
     log_lvl?: number;
-}) {
+}): Promise<ae_Account | null> {
     if (log_lvl) {
         console.log(`*** create_ae_obj__account() ***`);
     }
@@ -230,7 +204,7 @@ export async function update_ae_obj__account({
     params?: key_val;
     try_cache?: boolean;
     log_lvl?: number;
-}) {
+}): Promise<ae_Account | null> {
     if (log_lvl) {
         console.log(`*** update_ae_obj__account() *** account_id=${account_id}`, data_kv);
     }