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/__tests__/entitlement-router.test.ts

@@ -13,13 +13,18 @@ const createCaller = createCallerFactory(entitlementRouter);
 
 // ── Caller factories ─────────────────────────────────────────────────────────
 
+/** Injects a default resource ownership mock so the ownership check in getBalance passes */
 function createProtectedCaller(db: Record<string, unknown>) {
+  const withResourceOwnership = {
+    resource: { findUnique: vi.fn().mockResolvedValue({ userId: "user_1" }) },
+    ...db,
+  };
   return createCaller({
     session: {
       user: { email: "user@example.com", name: "User", image: null },
       expires: "2099-01-01T00:00:00.000Z",
     },
-    db: db as never,
+    db: withResourceOwnership as never,
     dbUser: {
       id: "user_1",
       systemRole: SystemRole.USER,