refactor: complete v2 refactoring plan (Phases 1-5)

Phase 1 — Quick Wins: centralize formatMoney/formatCents, extract
findUniqueOrThrow helper (19 routers), shared Prisma select constants,
useInvalidatePlanningViews hook, status badge consolidation, composite
DB indexes.

Phase 2 — Timeline Split: extract TimelineContext, TimelineResourcePanel,
TimelineProjectPanel; split 28-dep useMemo into 3 focused memos.
TimelineView.tsx reduced from 1,903 to 538 lines.

Phase 3 — Query Performance: server-side filtering for getEntriesView,
remove availability from timeline resource select, SSE event debouncing
(50ms batch window).

Phase 4 — Estimate Workspace: extract 7 tab components and 3 editor
components. EstimateWorkspaceClient 1,298→306 lines,
EstimateWorkspaceDraftEditor 1,205→581 lines.

Phase 5 — Package Cleanup: split commit-dispo-import-batch (1,112→573
lines), extract shared pagination helper with 11 tests.

All tests pass: 209 API, 254 engine, 67 application.

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

apps/web/src/components/estimates/ApplyExperienceMultipliers.tsx

@@ -2,6 +2,7 @@
 
 import { useState } from "react";
 import { clsx } from "clsx";
+import { formatCents } from "~/lib/format.js";
 import { trpc } from "~/lib/trpc/client.js";
 
 interface ApplyExperienceMultipliersProps {
@@ -10,13 +11,6 @@ interface ApplyExperienceMultipliersProps {
   onApplied?: () => void;
 }
 
-function formatCents(cents: number): string {
-  return (cents / 100).toLocaleString("de-DE", {
-    minimumFractionDigits: 2,
-    maximumFractionDigits: 2,
-  });
-}
-
 export function ApplyExperienceMultipliers({ estimateId, canEdit, onApplied }: ApplyExperienceMultipliersProps) {
   const utils = trpc.useUtils();
   const { data: sets, isLoading } = trpc.experienceMultiplier.list.useQuery();
@@ -29,7 +23,7 @@ export function ApplyExperienceMultipliers({ estimateId, canEdit, onApplied }: A
     { enabled: showPreview && Boolean(selectedSetId) },
   );
 
-  const applyMutation = trpc.experienceMultiplier.apply.useMutation({
+  const applyMutation = trpc.experienceMultiplier.applyRules.useMutation({
     onSuccess: (result) => {
       utils.estimate.getById.invalidate();
       setShowPreview(false);