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>

packages/api/src/router/blueprint.ts

@@ -1,6 +1,7 @@
 import { BlueprintTarget, CreateBlueprintSchema, UpdateBlueprintSchema, type BlueprintFieldDefinition } from "@planarchy/shared";
 import { TRPCError } from "@trpc/server";
 import { z } from "zod";
+import { findUniqueOrThrow } from "../db/helpers.js";
 import { adminProcedure, createTRPCRouter, protectedProcedure } from "../trpc.js";
 
 export const blueprintRouter = createTRPCRouter({
@@ -24,10 +25,10 @@ export const blueprintRouter = createTRPCRouter({
   getById: protectedProcedure
     .input(z.object({ id: z.string() }))
     .query(async ({ ctx, input }) => {
-      const blueprint = await ctx.db.blueprint.findUnique({ where: { id: input.id } });
-      if (!blueprint) {
-        throw new TRPCError({ code: "NOT_FOUND", message: "Blueprint not found" });
-      }
+      const blueprint = await findUniqueOrThrow(
+        ctx.db.blueprint.findUnique({ where: { id: input.id } }),
+        "Blueprint",
+      );
       return blueprint;
     }),
 
@@ -49,10 +50,10 @@ export const blueprintRouter = createTRPCRouter({
   update: adminProcedure
     .input(z.object({ id: z.string(), data: UpdateBlueprintSchema }))
     .mutation(async ({ ctx, input }) => {
-      const existing = await ctx.db.blueprint.findUnique({ where: { id: input.id } });
-      if (!existing) {
-        throw new TRPCError({ code: "NOT_FOUND", message: "Blueprint not found" });
-      }
+      await findUniqueOrThrow(
+        ctx.db.blueprint.findUnique({ where: { id: input.id } }),
+        "Blueprint",
+      );
 
       return ctx.db.blueprint.update({
         where: { id: input.id },
@@ -70,10 +71,10 @@ export const blueprintRouter = createTRPCRouter({
   updateRolePresets: adminProcedure
     .input(z.object({ id: z.string(), rolePresets: z.array(z.unknown()) }))
     .mutation(async ({ ctx, input }) => {
-      const existing = await ctx.db.blueprint.findUnique({ where: { id: input.id } });
-      if (!existing) {
-        throw new TRPCError({ code: "NOT_FOUND", message: "Blueprint not found" });
-      }
+      await findUniqueOrThrow(
+        ctx.db.blueprint.findUnique({ where: { id: input.id } }),
+        "Blueprint",
+      );
       return ctx.db.blueprint.update({
         where: { id: input.id },
         data: { rolePresets: input.rolePresets as unknown as import("@planarchy/db").Prisma.InputJsonValue },