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/e2e/estimates.spec.ts

@@ -10,22 +10,26 @@ async function signIn(page: Page, email: string, password: string) {
 
 test.describe("Estimates", () => {
   test.beforeEach(async ({ page }) => {
-    await signIn(page, "admin@capakraken.dev", "admin123");
+    await signIn(page, "admin@nexus.dev", "admin123");
     await page.goto("/estimates");
   });
 
   test("estimate list loads", async ({ page }) => {
     await page.waitForLoadState("networkidle");
+    await expect(page.getByRole("heading", { name: /estimate workspace/i })).toBeVisible({
+      timeout: 10000,
+    });
+    await expect(page.getByPlaceholder("Search by estimate or opportunity")).toBeVisible({
+      timeout: 10000,
+    });
     await expect(
-      page.getByRole("heading", { name: /estimate workspace/i }),
-    ).toBeVisible({ timeout: 10000 });
-    await expect(
-      page.getByPlaceholder("Search by estimate or opportunity"),
-    ).toBeVisible({ timeout: 10000 });
-    await expect(
-      page.locator("text=No estimates yet").or(
-        page.locator("text=Select an estimate to inspect the current version, demand lines, and summary metrics."),
-      ),
+      page
+        .locator("text=No estimates yet")
+        .or(
+          page.locator(
+            "text=Select an estimate to inspect the current version, demand lines, and summary metrics.",
+          ),
+        ),
     ).toBeVisible({ timeout: 10000 });
   });
 
@@ -44,8 +48,13 @@ test.describe("Estimates", () => {
     await page.locator("button", { hasText: /New Estimate/i }).click();
 
     // Step 1: Setup — fill a name
-    await expect(page.getByRole("button", { name: /Step 1 Setup/i })).toBeVisible({ timeout: 5000 });
-    const nameInput = page.locator('input[placeholder*="name"]').or(page.locator('input[name="name"]')).first();
+    await expect(page.getByRole("button", { name: /Step 1 Setup/i })).toBeVisible({
+      timeout: 5000,
+    });
+    const nameInput = page
+      .locator('input[placeholder*="name"]')
+      .or(page.locator('input[name="name"]'))
+      .first();
     if ((await nameInput.count()) > 0) {
       await nameInput.fill(`E2E Estimate ${Date.now()}`);
     }
@@ -90,9 +99,7 @@ test.describe("Estimates", () => {
 
   test("shows the empty-state fallback when no estimates exist", async ({ page }) => {
     await page.waitForLoadState("networkidle");
-    await expect(
-      page.locator("text=No estimates yet"),
-    ).toBeVisible({ timeout: 10000 });
+    await expect(page.locator("text=No estimates yet")).toBeVisible({ timeout: 10000 });
   });
 
   test("shows an estimate-not-found fallback for unknown workspaces", async ({ page }) => {
@@ -103,12 +110,14 @@ test.describe("Estimates", () => {
 
   test("shows the restricted workspace fallback for viewers", async ({ browser }) => {
     const page = await browser.newPage();
-    await signIn(page, "viewer@capakraken.dev", "viewer123");
+    await signIn(page, "viewer@nexus.dev", "viewer123");
     await page.goto("/estimates/missing-estimate");
     await page.waitForLoadState("networkidle");
 
     await expect(
-      page.locator("text=Your role can access the estimate list, but not the detailed financial workspace."),
+      page.locator(
+        "text=Your role can access the estimate list, but not the detailed financial workspace.",
+      ),
     ).toBeVisible({ timeout: 10000 });
 
     await page.close();