refactor: rename Planarchy to CapaKraken (branding only)

User-facing rename across 20 files:
- Layout title/meta: "CapaKraken — Resource & Capacity Planning"
- Sidebar logo: "CapaKraken" with "RESOURCE & CAPACITY PLANNING"
- Sign-in page: "CapaKraken Control Center", "Sign in to CapaKraken"
- PWA manifest: name + short_name
- PDF reports: footer text
- Install prompt: "Install CapaKraken"
- AI assistant system prompt
- Webhooks test payload
- Email subject lines
- Tooltips, descriptions, empty states

NOT changed (technical identifiers):
- Package names (@planarchy/*)
- Import paths
- Database names
- Docker container names
- localStorage keys
- Domain URLs
- CLAUDE.md

Co-Authored-By: claude-flow <ruv@ruv.net>

packages/api/src/router/assistant-tools.ts

@@ -276,7 +276,7 @@ export const TOOL_DEFINITIONS: ToolDef[] = [
     type: "function",
     function: {
       name: "navigate_to_page",
-      description: "Navigate the user to a specific page in Planarchy, optionally with filters. Use this when the user wants to see data on a specific page (e.g. 'show me on the timeline', 'open the resources page').",
+      description: "Navigate the user to a specific page in CapaKraken, optionally with filters. Use this when the user wants to see data on a specific page (e.g. 'show me on the timeline', 'open the resources page').",
       parameters: {
         type: "object",
         properties: {

packages/api/src/router/assistant.ts

@@ -12,7 +12,7 @@ import { TOOL_DEFINITIONS, executeTool, type ToolContext, type ToolAction } from
 
 const MAX_TOOL_ITERATIONS = 8;
 
-const SYSTEM_PROMPT = `Du bist der plANARCHY-Assistent — ein hilfreicher AI-Assistent für Ressourcenplanung und Projektmanagement in einer 3D-Produktionsumgebung.
+const SYSTEM_PROMPT = `Du bist der CapaKraken-Assistent — ein hilfreicher AI-Assistent für Ressourcenplanung und Projektmanagement in einer 3D-Produktionsumgebung.
 
 Deine Fähigkeiten:
 - Fragen über Ressourcen, Projekte, Allokationen, Budget, Urlaub, Estimates, Org-Struktur, Rollen, Blueprints, Rate Cards beantworten

packages/api/src/router/vacation.ts

@@ -71,7 +71,7 @@ async function notifyVacationStatus(
   if (resource.user.email) {
     void sendEmail({
       to: resource.user.email,
-      subject: `Planarchy — ${title}`,
+      subject: `CapaKraken — ${title}`,
       text: body,
     });
   }

packages/api/src/router/webhook.ts

@@ -144,7 +144,7 @@ export const webhookRouter = createTRPCRouter({
         payload: {
           webhookId: wh.id,
           webhookName: wh.name,
-          message: "This is a test payload from Planarchy.",
+          message: "This is a test payload from CapaKraken.",
         },
       };