feat: vendor sidebar section, remove example tenant, add Logto link

- Sidebar: Tenants moved into expandable "Vendor" section with
  sub-items for Tenants and Identity (Logto console link)
- Bootstrap: removed example organization creation (Phase 6 org)
  — tenants are now created exclusively via the vendor console
- Removed BootstrapDataSeeder (no auto-seeded tenant/license)
- Bootstrap log updated to reflect clean-slate approach

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/main/java/net/siegeln/cameleer/saas/config/BootstrapDataSeeder.java

@@ -1,106 +0,0 @@
-package net.siegeln.cameleer.saas.config;
-
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import net.siegeln.cameleer.saas.tenant.TenantEntity;
-import net.siegeln.cameleer.saas.tenant.TenantRepository;
-import net.siegeln.cameleer.saas.tenant.TenantStatus;
-import net.siegeln.cameleer.saas.tenant.Tier;
-import net.siegeln.cameleer.saas.license.LicenseEntity;
-import net.siegeln.cameleer.saas.license.LicenseRepository;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.boot.ApplicationArguments;
-import org.springframework.boot.ApplicationRunner;
-import org.springframework.stereotype.Component;
-
-import java.io.File;
-import java.time.Instant;
-import java.time.temporal.ChronoUnit;
-import java.util.Map;
-
-@Component
-public class BootstrapDataSeeder implements ApplicationRunner {
-
-    private static final Logger log = LoggerFactory.getLogger(BootstrapDataSeeder.class);
-    private static final String BOOTSTRAP_FILE = "/data/bootstrap/logto-bootstrap.json";
-
-    private final TenantRepository tenantRepository;
-    private final LicenseRepository licenseRepository;
-    private final ObjectMapper objectMapper = new ObjectMapper();
-
-    public BootstrapDataSeeder(TenantRepository tenantRepository,
-                                LicenseRepository licenseRepository) {
-        this.tenantRepository = tenantRepository;
-        this.licenseRepository = licenseRepository;
-    }
-
-    @Override
-    public void run(ApplicationArguments args) {
-        File file = new File(BOOTSTRAP_FILE);
-        if (!file.exists()) {
-            log.info("No bootstrap file found at {} — skipping data seeding", BOOTSTRAP_FILE);
-            return;
-        }
-
-        try {
-            JsonNode config = objectMapper.readTree(file);
-            String orgId = getField(config, "organizationId");
-            String tenantName = getField(config, "tenantName");
-            String tenantSlug = getField(config, "tenantSlug");
-
-            if (orgId == null || tenantSlug == null) {
-                log.info("Bootstrap file missing organizationId or tenantSlug — skipping");
-                return;
-            }
-
-            // Check if tenant already exists
-            if (tenantRepository.existsBySlug(tenantSlug)) {
-                log.info("Tenant '{}' already exists — skipping bootstrap seeding", tenantSlug);
-                return;
-            }
-
-            log.info("Seeding bootstrap tenant '{}'...", tenantSlug);
-
-            // Create tenant
-            TenantEntity tenant = new TenantEntity();
-            tenant.setName(tenantName != null ? tenantName : "Example Tenant");
-            tenant.setSlug(tenantSlug);
-            tenant.setTier(Tier.LOW);
-            tenant.setStatus(TenantStatus.ACTIVE);
-            tenant.setLogtoOrgId(orgId);
-            tenant = tenantRepository.save(tenant);
-            log.info("Created tenant: {} ({})", tenant.getSlug(), tenant.getId());
-
-            // Create license
-            LicenseEntity license = new LicenseEntity();
-            license.setTenantId(tenant.getId());
-            license.setTier("LOW");
-            license.setFeatures(Map.of(
-                    "topology", true,
-                    "lineage", false,
-                    "correlation", false,
-                    "debugger", false,
-                    "replay", false
-            ));
-            license.setLimits(Map.of(
-                    "max_agents", 3,
-                    "retention_days", 7,
-                    "max_environments", 1
-            ));
-            license.setIssuedAt(Instant.now());
-            license.setExpiresAt(Instant.now().plus(365, ChronoUnit.DAYS));
-            license.setToken("bootstrap-license");
-            licenseRepository.save(license);
-            log.info("Created license for tenant '{}'", tenantSlug);
-
-            log.info("Bootstrap data seeding complete.");
-        } catch (Exception e) {
-            log.error("Failed to seed bootstrap data: {}", e.getMessage(), e);
-        }
-    }
-
-    private String getField(JsonNode node, String field) {
-        return node.has(field) ? node.get(field).asText() : null;
-    }
-}