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>

apps/web/src/components/admin/SystemSettingsClient.tsx

@@ -1294,13 +1294,13 @@ export function SystemSettingsClient() {
             />
           </div>
           <div>
-            <label className={LABEL_CLASS}><span className="flex items-center">From Address <InfoTooltip content="The sender email address shown in notification emails (e.g. noreply@planarchy.app)." /></span></label>
+            <label className={LABEL_CLASS}><span className="flex items-center">From Address <InfoTooltip content="The sender email address shown in notification emails (e.g. noreply@capakraken.app)." /></span></label>
             <input
               type="email"
               className={INPUT_CLASS}
               value={smtpFrom}
               onChange={(e) => setSmtpFrom(e.target.value)}
-              placeholder="noreply@planarchy.app"
+              placeholder="noreply@capakraken.app"
             />
           </div>
           <div className={`${CHECKBOX_ROW_CLASS} pt-0 md:mt-[1.65rem]`}>