feat: timeline UI overhaul with project/resource panel redesign, quick filters, and API improvements

Redesigned timeline project and resource panels with expanded detail views,
added quick filter toolbar, improved drag handling, and enhanced vacation/entitlement
router logic. Includes e2e test updates and minor API fixes.

Co-Authored-By: claude-flow <ruv@ruv.net>

packages/api/src/router/user.ts

@@ -15,7 +15,7 @@ import { findUniqueOrThrow } from "../db/helpers.js";
 import { adminProcedure, createTRPCRouter, protectedProcedure } from "../trpc.js";
 
 export const userRouter = createTRPCRouter({
-  list: protectedProcedure.query(async ({ ctx }) => {
+  list: adminProcedure.query(async ({ ctx }) => {
     return ctx.db.user.findMany({
       select: {
         id: true,