rename(phase 1): CapaKraken → Nexus across code, UI, docs, CI

- @capakraken/* → @nexus/* across 12 packages (root + 11 workspaces),
  1551 import lines migrated via codemod
- User-visible brand strings renamed (emails, page titles, PWA
  manifest, mobile header, MFA backup-codes header, tooltips, signin
  page, invite page, weekly digest, install prompt)
- TOTP issuer "CapaKraken" → "Nexus" (existing secrets still valid;
  re-enrollment relabels them in users' authenticator apps)
- Function rename: assertCapaKrakenDbTarget → assertNexusDbTarget
- LocalStorage migration shim in apps/web/src/app/layout.tsx copies
  capakraken_* → nexus_* on first load (guarded by nexus_migrated_v1
  sentinel; runs once per browser, then never again)
- Service-worker cache name capakraken-v2 → nexus-v2 with one-time
  caches.delete('capakraken-v2') from the same shim
- Email-domain fixtures @capakraken.{dev,app} → @nexus.{dev,app} in
  seed data, e2e specs, SMTP default fallback
- Dockerfile.dev / Dockerfile.prod / all .github/workflows/*.yml
  pnpm --filter @capakraken/* → @nexus/*
- README, CLAUDE.md, LEARNINGS.md, all docs/*.md, .env.example,
  tooling/deploy/.env.production.example brand sweep

Phase 1 deliberately leaves untouched (handled in Phase 3 cutover):
- PostgreSQL DB name "capakraken" and POSTGRES_USER "capakraken"
- Volume names capakraken_pgdata etc.
- Compose project name "capakraken" / "capakraken-prod"
- db-target-guard default expectedDatabase
- env-var CAPAKRAKEN_EXPECTED_DB_NAME
- Container DNS names in docker-compose.ci.yml

Quality gates green: pnpm typecheck (7/7), pnpm test:unit (7/7),
pnpm lint (0 errors), check:exports/imports/architecture all pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

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

@@ -1,13 +1,13 @@
 "use client";
 
 import { useEffect, useMemo, useState } from "react";
-import type { EstimateDemandLineRateMode } from "@capakraken/shared";
+import type { EstimateDemandLineRateMode } from "@nexus/shared";
 import {
   computeEvenSpread,
   getEstimateMonthRange,
   rebalanceSpread,
   summarizeMonthlySpread,
-} from "@capakraken/engine";
+} from "@nexus/engine";
 import {
   buildDemandLineMetadata,
   getEffectiveDemandLineValues,
@@ -104,9 +104,7 @@ export function EstimateWorkspaceDraftEditor({
     { staleTime: 15_000 },
   );
   const workingVersion =
-    versions.find((version) => version.status === "WORKING") ??
-    versions[0] ??
-    null;
+    versions.find((version) => version.status === "WORKING") ?? versions[0] ?? null;
 
   const [name, setName] = useState(estimate.name);
   const [opportunityId, setOpportunityId] = useState(estimate.opportunityId ?? "");
@@ -148,9 +146,7 @@ export function EstimateWorkspaceDraftEditor({
       new Map(
         (workingVersion?.resourceSnapshots ?? [])
           .filter(
-            (
-              snapshot,
-            ): snapshot is EstimateResourceSnapshotView & { resourceId: string } =>
+            (snapshot): snapshot is EstimateResourceSnapshotView & { resourceId: string } =>
               typeof snapshot.resourceId === "string" && snapshot.resourceId.length > 0,
           )
           .map((snapshot) => [snapshot.resourceId, snapshot]),
@@ -196,7 +192,8 @@ export function EstimateWorkspaceDraftEditor({
           billRateCents: line.billRateCents,
         });
 
-        const existingSpread = (line as { monthlySpread?: Record<string, number> }).monthlySpread ?? {};
+        const existingSpread =
+          (line as { monthlySpread?: Record<string, number> }).monthlySpread ?? {};
         return {
           id: line.id,
           ...(line.scopeItemId ? { scopeItemId: line.scopeItemId } : {}),
@@ -226,7 +223,9 @@ export function EstimateWorkspaceDraftEditor({
         const hours = toNumber(line.hours);
         const resourceSnapshot =
           line.resourceId != null
-            ? resourceMap.get(line.resourceId) ?? snapshotByResourceId.get(line.resourceId) ?? null
+            ? (resourceMap.get(line.resourceId) ??
+              snapshotByResourceId.get(line.resourceId) ??
+              null)
             : null;
         const effectiveValues = getEffectiveDemandLineValues({
           resourceSnapshot,
@@ -290,9 +289,7 @@ export function EstimateWorkspaceDraftEditor({
   const projectStartDate = estimate.project?.startDate
     ? new Date(estimate.project.startDate)
     : null;
-  const projectEndDate = estimate.project?.endDate
-    ? new Date(estimate.project.endDate)
-    : null;
+  const projectEndDate = estimate.project?.endDate ? new Date(estimate.project.endDate) : null;
   const hasProjectDates = projectStartDate !== null && projectEndDate !== null;
 
   function computeLineSpread(line: EditableDemandLine): Record<string, number> {
@@ -317,10 +314,9 @@ export function EstimateWorkspaceDraftEditor({
     }).spread;
   }
 
-  const spreadMonths =
-    hasProjectDates
-      ? getEstimateMonthRange(projectStartDate, projectEndDate)
-      : [];
+  const spreadMonths = hasProjectDates
+    ? getEstimateMonthRange(projectStartDate, projectEndDate)
+    : [];
 
   const aggregatedSpread = hasProjectDates
     ? summarizeMonthlySpread(demandLines.map(computeLineSpread))
@@ -396,7 +392,10 @@ export function EstimateWorkspaceDraftEditor({
       ...new Set(
         sanitizedDemandLines
           .map((line) => line.resourceId)
-          .filter((resourceId): resourceId is string => typeof resourceId === "string" && resourceId.length > 0),
+          .filter(
+            (resourceId): resourceId is string =>
+              typeof resourceId === "string" && resourceId.length > 0,
+          ),
       ),
     ];
 
@@ -472,19 +471,36 @@ export function EstimateWorkspaceDraftEditor({
           <div className="grid gap-4 md:grid-cols-2">
             <label>
               <span className="app-label">Estimate name</span>
-              <input className="app-input" value={name} onChange={(event) => setName(event.target.value)} />
+              <input
+                className="app-input"
+                value={name}
+                onChange={(event) => setName(event.target.value)}
+              />
             </label>
             <label>
               <span className="app-label">Opportunity ID</span>
-              <input className="app-input" value={opportunityId} onChange={(event) => setOpportunityId(event.target.value)} />
+              <input
+                className="app-input"
+                value={opportunityId}
+                onChange={(event) => setOpportunityId(event.target.value)}
+              />
             </label>
             <label>
               <span className="app-label">Base currency</span>
-              <input className="app-input" maxLength={3} value={baseCurrency} onChange={(event) => setBaseCurrency(event.target.value.toUpperCase())} />
+              <input
+                className="app-input"
+                maxLength={3}
+                value={baseCurrency}
+                onChange={(event) => setBaseCurrency(event.target.value.toUpperCase())}
+              />
             </label>
             <label>
               <span className="app-label">Version label</span>
-              <input className="app-input" value={versionLabel} onChange={(event) => setVersionLabel(event.target.value)} />
+              <input
+                className="app-input"
+                value={versionLabel}
+                onChange={(event) => setVersionLabel(event.target.value)}
+              />
             </label>
           </div>
 
@@ -503,15 +519,21 @@ export function EstimateWorkspaceDraftEditor({
           <div className="mt-4 space-y-3">
             <div className="flex items-center justify-between rounded-2xl bg-gray-50 px-4 py-3">
               <span className="text-xs uppercase tracking-wide text-gray-400">Total Hours</span>
-              <span className="text-sm font-semibold text-gray-900">{summary.totalHours.toFixed(1)}</span>
+              <span className="text-sm font-semibold text-gray-900">
+                {summary.totalHours.toFixed(1)}
+              </span>
             </div>
             <div className="flex items-center justify-between rounded-2xl bg-gray-50 px-4 py-3">
               <span className="text-xs uppercase tracking-wide text-gray-400">Total Cost</span>
-              <span className="text-sm font-semibold text-gray-900">{formatMoney(summary.totalCostCents, baseCurrency)}</span>
+              <span className="text-sm font-semibold text-gray-900">
+                {formatMoney(summary.totalCostCents, baseCurrency)}
+              </span>
             </div>
             <div className="flex items-center justify-between rounded-2xl bg-gray-50 px-4 py-3">
               <span className="text-xs uppercase tracking-wide text-gray-400">Total Price</span>
-              <span className="text-sm font-semibold text-gray-900">{formatMoney(summary.totalPriceCents, baseCurrency)}</span>
+              <span className="text-sm font-semibold text-gray-900">
+                {formatMoney(summary.totalPriceCents, baseCurrency)}
+              </span>
             </div>
           </div>
         </aside>
@@ -524,13 +546,24 @@ export function EstimateWorkspaceDraftEditor({
       <div className="flex flex-wrap items-center justify-between gap-3 rounded-3xl border border-brand-200 bg-brand-50 px-5 py-4">
         <div>
           <p className="text-sm font-semibold text-brand-800">Editing working draft</p>
-          <p className="text-sm text-brand-700">Changes overwrite the current working version and refresh summary metrics on save.</p>
+          <p className="text-sm text-brand-700">
+            Changes overwrite the current working version and refresh summary metrics on save.
+          </p>
         </div>
         <div className="flex gap-2">
-          <button type="button" className="rounded-2xl border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700" onClick={onCancel}>
+          <button
+            type="button"
+            className="rounded-2xl border border-gray-300 bg-white px-4 py-2 text-sm font-medium text-gray-700"
+            onClick={onCancel}
+          >
             Cancel
           </button>
-          <button type="button" className="rounded-2xl bg-brand-600 px-4 py-2 text-sm font-semibold text-white disabled:opacity-60" disabled={updateMutation.isPending} onClick={() => void handleSave()}>
+          <button
+            type="button"
+            className="rounded-2xl bg-brand-600 px-4 py-2 text-sm font-semibold text-white disabled:opacity-60"
+            disabled={updateMutation.isPending}
+            onClick={() => void handleSave()}
+          >
             {updateMutation.isPending ? "Saving..." : "Save draft"}
           </button>
         </div>
@@ -544,10 +577,7 @@ export function EstimateWorkspaceDraftEditor({
 
       {tab === "overview" && renderOverviewEditor()}
       {tab === "assumptions" && (
-        <AssumptionEditor
-          assumptions={assumptions}
-          onChange={setAssumptions}
-        />
+        <AssumptionEditor assumptions={assumptions} onChange={setAssumptions} />
       )}
       {tab === "scope" && (
         <ScopeItemEditor