chore: full technical rename planarchy → capakraken

Complete rename of all technical identifiers across the codebase:

Package names (11 packages):
- @planarchy/* → @capakraken/* in all package.json, tsconfig, imports

Import statements: 277 files, 548 occurrences replaced

Database & Docker:
- PostgreSQL user/db: planarchy → capakraken
- Docker volumes: planarchy_pgdata → capakraken_pgdata
- Connection strings updated in docker-compose, .env, CI

CI/CD:
- GitHub Actions workflow: all filter commands updated
- Test database credentials updated

Infrastructure:
- Redis channel: planarchy:sse → capakraken:sse
- Logger service name: planarchy-api → capakraken-api
- Anonymization seed updated
- Start/stop/restart scripts updated

Test data:
- Seed emails: @planarchy.dev → @capakraken.dev
- E2E test credentials: all 11 spec files updated
- Email defaults: @planarchy.app → @capakraken.app
- localStorage keys: planarchy_* → capakraken_*

Documentation: 30+ .md files updated

Verification:
- pnpm install: workspace resolution works
- TypeScript: only pre-existing TS2589 (no new errors)
- Engine: 310/310 tests pass
- Staffing: 37/37 tests pass

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

packages/api/src/lib/email.ts

@@ -3,7 +3,7 @@
  * Non-blocking — errors are logged, not thrown.
  */
 import nodemailer from "nodemailer";
-import { prisma as db } from "@planarchy/db";
+import { prisma as db } from "@capakraken/db";
 
 interface EmailPayload {
   to: string | string[];
@@ -23,7 +23,7 @@ async function getSmtpConfig() {
       settings.smtpUser && settings.smtpPassword
         ? { user: settings.smtpUser, pass: settings.smtpPassword }
         : undefined,
-    from: settings.smtpFrom ?? settings.smtpUser ?? "noreply@planarchy.app",
+    from: settings.smtpFrom ?? settings.smtpUser ?? "noreply@capakraken.app",
   };
 }