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/dev-system/mfa.spec.ts

@@ -21,9 +21,16 @@ import { STORAGE_STATE } from "../../playwright.dev.config.js";
 
 // ─── tRPC helpers ─────────────────────────────────────────────────────────────
 
-type TrpcResult = { result?: { data?: unknown }; error?: { data?: { code?: string }; message?: string } };
+type TrpcResult = {
+  result?: { data?: unknown };
+  error?: { data?: { code?: string }; message?: string };
+};
 
-async function trpcMutation(page: Page, procedure: string, input: unknown = null): Promise<TrpcResult> {
+async function trpcMutation(
+  page: Page,
+  procedure: string,
+  input: unknown = null,
+): Promise<TrpcResult> {
   return page.evaluate(
     async ({ procedure, input }) => {
       const res = await fetch(`/api/trpc/${procedure}?batch=1`, {
@@ -39,7 +46,11 @@ async function trpcMutation(page: Page, procedure: string, input: unknown = null
   );
 }
 
-async function trpcQuery(page: Page, procedure: string, input: unknown = null): Promise<TrpcResult> {
+async function trpcQuery(
+  page: Page,
+  procedure: string,
+  input: unknown = null,
+): Promise<TrpcResult> {
   return page.evaluate(
     async ({ procedure, input }) => {
       const encodedInput = encodeURIComponent(JSON.stringify({ "0": { json: input } }));
@@ -60,7 +71,7 @@ async function enableMfaForSession(page: Page): Promise<TOTP> {
   if (!data?.secret) throw new Error(`generateTotpSecret failed: ${JSON.stringify(genRes)}`);
 
   const totp = new TOTP({
-    issuer: "CapaKraken",
+    issuer: "Nexus",
     algorithm: "SHA1",
     digits: 6,
     period: 30,
@@ -92,7 +103,9 @@ test.describe("MFA — setup flow (account/security page)", () => {
   test.afterEach(async ({ page }) => {
     // Clean up: disable MFA if a test enabled it
     if (totp) {
-      await disableMfaForSession(page).catch(() => {/* already disabled or admin override */});
+      await disableMfaForSession(page).catch(() => {
+        /* already disabled or admin override */
+      });
       totp = null;
     }
   });
@@ -106,7 +119,7 @@ test.describe("MFA — setup flow (account/security page)", () => {
 
     expect(data?.secret).toBeTruthy();
     expect(data?.uri).toMatch(/^otpauth:\/\/totp\//);
-    expect(data?.uri).toContain("CapaKraken");
+    expect(data?.uri).toContain("Nexus");
   });
 
   test("verifyAndEnableTotp accepts a valid code and enables MFA", async ({ page }) => {
@@ -137,9 +150,9 @@ test.describe("MFA — setup flow (account/security page)", () => {
     await page.waitForLoadState("networkidle");
 
     // Click the enable/setup button if MFA is not yet enabled
-    const setupBtn = page.getByRole("button", { name: /set up/i }).or(
-      page.getByRole("button", { name: /enable.*mfa/i }),
-    );
+    const setupBtn = page
+      .getByRole("button", { name: /set up/i })
+      .or(page.getByRole("button", { name: /enable.*mfa/i }));
 
     if (await setupBtn.isVisible({ timeout: 3000 }).catch(() => false)) {
       await setupBtn.click();
@@ -233,9 +246,10 @@ test.describe("MFA — login flow", () => {
 
     // Should show error and remain on TOTP step
     await expect(
-      page.getByText(/invalid.*code|incorrect.*token|try again/i).or(
-        page.locator("[data-error]"),
-      ).first(),
+      page
+        .getByText(/invalid.*code|incorrect.*token|try again/i)
+        .or(page.locator("[data-error]"))
+        .first(),
     ).toBeVisible({ timeout: 5000 });
 
     // Should NOT have navigated away
@@ -248,7 +262,9 @@ test.describe("MFA — login flow", () => {
 test.describe("MFA — users without MFA enabled", () => {
   test.use({ storageState: { cookies: [], origins: [] } });
 
-  test("login for MFA-less user goes straight to dashboard without TOTP prompt", async ({ page }) => {
+  test("login for MFA-less user goes straight to dashboard without TOTP prompt", async ({
+    page,
+  }) => {
     await page.goto("/auth/signin");
     await page.fill('input[type="email"]', "manager@planarchy.dev");
     await page.fill('input[type="password"]', "manager123");