Convert per-project spent to base currency via account FX rate

Both the overview and budget page queries now multiply each approved
expense amount by its account's fxRateToBase before summing. A -$434
USD expense on a USD account (rate 34.5) now contributes -14,973 THB
to the total, not -434. Expenses with no account fall back to rate 1.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/routes/(app)/companies/[companyId]/+page.server.ts

@@ -1,23 +1,30 @@
 import type { PageServerLoad } from './$types';
 import { db } from '$lib/server/db/index.js';
-import { projects, expenses, sales, saleLineItems } from '$lib/server/db/schema.js';
+import {
+	projects,
+	expenses,
+	sales,
+	saleLineItems,
+	companyAccounts
+} from '$lib/server/db/schema.js';
 import { eq, and, sql } from 'drizzle-orm';
 
 export const load: PageServerLoad = async ({ parent }) => {
 	const { company } = await parent();
 
-	// Get projects with spent amounts
+	// Get projects with spent amounts (converted to base currency via each expense's account fx rate)
 	const projectList = await db
 		.select({
 			id: projects.id,
 			name: projects.name,
 			allocatedBudget: projects.allocatedBudget,
 			isActive: projects.isActive,
-			spent: sql<string>`coalesce(sum(case when ${expenses.status} = 'approved' then ${expenses.amount} else 0 end), 0)`,
+			spent: sql<string>`coalesce(sum(case when ${expenses.status} = 'approved' then ${expenses.amount} * coalesce(${companyAccounts.fxRateToBase}, 1) else 0 end), 0)::text`,
 			pendingCount: sql<number>`count(case when ${expenses.status} = 'pending' then 1 end)::int`
 		})
 		.from(projects)
 		.leftJoin(expenses, eq(expenses.projectId, projects.id))
+		.leftJoin(companyAccounts, eq(expenses.accountId, companyAccounts.id))
 		.where(eq(projects.companyId, company.id))
 		.groupBy(projects.id)
 		.orderBy(projects.name);

src/routes/(app)/companies/[companyId]/budget/+page.server.ts

@@ -9,7 +9,8 @@ import {
 	expenses,
 	companyLog,
 	sales,
-	saleLineItems
+	saleLineItems,
+	companyAccounts
 } from '$lib/server/db/schema.js';
 import { and, eq, sql } from 'drizzle-orm';
 import { requireCompanyRole } from '$lib/server/authorization.js';
@@ -24,10 +25,11 @@ export const load: PageServerLoad = async ({ parent, params }) => {
 			id: projects.id,
 			name: projects.name,
 			allocatedBudget: projects.allocatedBudget,
-			spent: sql<string>`coalesce(sum(case when ${expenses.status} = 'approved' then ${expenses.amount} else 0 end), 0)`
+			spent: sql<string>`coalesce(sum(case when ${expenses.status} = 'approved' then ${expenses.amount} * coalesce(${companyAccounts.fxRateToBase}, 1) else 0 end), 0)::text`
 		})
 		.from(projects)
 		.leftJoin(expenses, eq(expenses.projectId, projects.id))
+		.leftJoin(companyAccounts, eq(expenses.accountId, companyAccounts.id))
 		.where(eq(projects.companyId, params.companyId))
 		.groupBy(projects.id)
 		.orderBy(projects.name);