fix: OIDC auth flow, Vite proxy, and PostgreSQL query compat

- Add auth redirect in root layout for unauthenticated users
- Proxy OIDC routes (/login, /callback, /logout) through Vite dev server
- Strip Secure flag from OIDC cookies in dev mode (HTTP localhost)
- Disable retry on auth query to prevent stale cookie loops
- Fix SQLite .get()/.all()/.run() calls in category and global-item
  services for PostgreSQL compatibility
- Add userId scoping to category service functions
- Add OIDC error logging in auth middleware
- Apply linter auto-formatting across affected files

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

src/server/services/profile.service.ts

@@ -1,5 +1,5 @@
 import { and, eq, sql } from "drizzle-orm";
-import { db as prodDb } from "../../db/index.ts";
+import type { db as prodDb } from "../../db/index.ts";
 import {
 	categories,
 	items,
@@ -16,10 +16,7 @@ export async function updateProfile(
 	userId: number,
 	data: UpdateProfile,
 ) {
-	const [existing] = await db
-		.select()
-		.from(users)
-		.where(eq(users.id, userId));
+	const [existing] = await db.select().from(users).where(eq(users.id, userId));
 	if (!existing) return null;
 
 	// If no fields to update, return existing user