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>

packages/staffing/src/__tests__/capacity-analyzer-perf.test.ts

@@ -1,4 +1,4 @@
-import { AllocationStatus } from "@capakraken/shared";
+import { AllocationStatus } from "@nexus/shared";
 import { describe, expect, it } from "vitest";
 import { findCapacityWindows, analyzeUtilization } from "../capacity-analyzer.js";
 import type { CapacityAnalysisInput } from "../capacity-analyzer.js";

packages/staffing/src/__tests__/capacity-analyzer-vacation.test.ts

@@ -7,7 +7,7 @@
  * analyzeUtilization and findCapacityWindows functions correctly handle the
  * resulting utilization when vacation blocks are modelled as full-day allocations.
  */
-import { AllocationStatus } from "@capakraken/shared";
+import { AllocationStatus } from "@nexus/shared";
 import { describe, expect, it } from "vitest";
 import { analyzeUtilization, findCapacityWindows } from "../capacity-analyzer.js";
 import type { CapacityAnalysisInput } from "../capacity-analyzer.js";

packages/staffing/src/__tests__/capacity-analyzer.test.ts

@@ -1,4 +1,4 @@
-import { AllocationStatus } from "@capakraken/shared";
+import { AllocationStatus } from "@nexus/shared";
 import { describe, expect, it } from "vitest";
 import { analyzeUtilization, findCapacityWindows } from "../capacity-analyzer.js";
 import type { CapacityAnalysisInput } from "../capacity-analyzer.js";

packages/staffing/src/capacity-analyzer.ts

@@ -5,14 +5,11 @@ import {
   type Resource,
   type UtilizationAnalysis,
   type UtilizationPeriod,
-} from "@capakraken/shared";
+} from "@nexus/shared";
 
 export interface CapacityAnalysisInput {
   resource: Pick<Resource, "id" | "displayName" | "chargeabilityTarget" | "availability">;
-  allocations: (Pick<
-    Allocation,
-    "startDate" | "endDate" | "hoursPerDay" | "status"
-  > & {
+  allocations: (Pick<Allocation, "startDate" | "endDate" | "hoursPerDay" | "status"> & {
     projectName: string;
     isChargeable: boolean;
   })[];
@@ -71,7 +68,13 @@ export function analyzeUtilization(input: CapacityAnalysisInput): UtilizationAna
   let totalAvailableHours = 0;
 
   const DOW_KEYS = [
-    "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday",
+    "sunday",
+    "monday",
+    "tuesday",
+    "wednesday",
+    "thursday",
+    "friday",
+    "saturday",
   ] as const;
 
   const current = new Date(analysisStart);
@@ -154,7 +157,13 @@ export function findCapacityWindows(
   let windowMinHours = Infinity;
 
   const DOW_KEYS = [
-    "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday",
+    "sunday",
+    "monday",
+    "tuesday",
+    "wednesday",
+    "thursday",
+    "friday",
+    "saturday",
   ] as const;
 
   function closeWindow(closeDate: Date) {

packages/staffing/src/skill-matcher.ts

@@ -1,10 +1,13 @@
-import type { Resource, ScoreBreakdown, SkillEntry, StaffingSuggestion } from "@capakraken/shared";
-import { SCORE_WEIGHTS } from "@capakraken/shared";
+import type { Resource, ScoreBreakdown, SkillEntry, StaffingSuggestion } from "@nexus/shared";
+import { SCORE_WEIGHTS } from "@nexus/shared";
 
 export interface SkillMatchInput {
   requiredSkills: string[];
   preferredSkills?: string[];
-  resources: (Pick<Resource, "id" | "displayName" | "eid" | "skills" | "lcrCents" | "chargeabilityTarget"> & {
+  resources: (Pick<
+    Resource,
+    "id" | "displayName" | "eid" | "skills" | "lcrCents" | "chargeabilityTarget"
+  > & {
     currentUtilizationPercent: number;
     hasAvailabilityConflicts: boolean;
     conflictDays?: string[];
@@ -79,10 +82,7 @@ export function computeSkillScore(
 /**
  * Computes availability score (0-100) based on whether conflicts exist.
  */
-export function computeAvailabilityScore(
-  hasConflicts: boolean,
-  conflictDayCount = 0,
-): number {
+export function computeAvailabilityScore(hasConflicts: boolean, conflictDayCount = 0): number {
   if (!hasConflicts) return 100;
   // Reduce score by 10 per conflict day, minimum 0
   return Math.max(0, 100 - conflictDayCount * 10);
@@ -92,10 +92,7 @@ export function computeAvailabilityScore(
  * Computes cost score (0-100). Lower LCR = higher score.
  * Normalized against a budget target.
  */
-export function computeCostScore(
-  resourceLcrCents: number,
-  budgetLcrCentsPerHour?: number,
-): number {
+export function computeCostScore(resourceLcrCents: number, budgetLcrCentsPerHour?: number): number {
   if (!budgetLcrCentsPerHour || budgetLcrCentsPerHour <= 0) return 50; // Neutral
   if (resourceLcrCents <= budgetLcrCentsPerHour) return 100;
   // Above budget: score decreases linearly, 0 at 2× budget

packages/staffing/src/value-scorer.ts

@@ -1,11 +1,11 @@
-import type { SkillEntry, ValueScoreBreakdown } from "@capakraken/shared";
+import type { SkillEntry, ValueScoreBreakdown } from "@nexus/shared";
 
 export interface ValueScoreInput {
   skills: SkillEntry[];
   lcrCents: number;
   chargeabilityTarget: number;
   currentChargeability: number; // actual % (computed from allocations by caller)
-  maxLcrCents: number;          // org-wide max (for normalization)
+  maxLcrCents: number; // org-wide max (for normalization)
 }
 
 export interface ValueScoreWeights {
@@ -46,16 +46,15 @@ export function computeValueScore(
   }
 
   // 4. Chargeability: closer to target = higher; ±50pp gap = 0
-  const chargeability = Math.max(
-    0,
-    100 - Math.abs(chargeabilityTarget - currentChargeability) * 2,
-  );
+  const chargeability = Math.max(0, 100 - Math.abs(chargeabilityTarget - currentChargeability) * 2);
 
   // 5. Experience: avg yearsExperience capped at 10yr → 100
   let experience = 0;
   const skillsWithYears = skills.filter((s) => (s.yearsExperience ?? 0) > 0);
   if (skillsWithYears.length > 0) {
-    const avgYears = skillsWithYears.reduce((sum, s) => sum + (s.yearsExperience ?? 0), 0) / skillsWithYears.length;
+    const avgYears =
+      skillsWithYears.reduce((sum, s) => sum + (s.yearsExperience ?? 0), 0) /
+      skillsWithYears.length;
     experience = Math.min(100, Math.round(avgYears * 10));
   }