feat: strip SaaS UI to vendor management dashboard

- Delete EnvironmentsPage, EnvironmentDetailPage, AppDetailPage
- Delete EnvironmentTree and DeploymentStatusBadge components
- Simplify DashboardPage to show tenant info, license status, server link
- Remove environment/app/deployment routes from router
- Remove environment section from sidebar, keep dashboard/license/platform
- Strip API hooks to tenant/license/me only
- Remove environment/app/deployment/observability types

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

ui/src/types/api.ts

@@ -8,48 +8,6 @@ export interface TenantResponse {
   updatedAt: string;
 }
 
-export interface EnvironmentResponse {
-  id: string;
-  tenantId: string;
-  slug: string;
-  displayName: string;
-  status: string;
-  createdAt: string;
-  updatedAt: string;
-}
-
-export interface AppResponse {
-  id: string;
-  environmentId: string;
-  slug: string;
-  displayName: string;
-  jarOriginalFilename: string | null;
-  jarSizeBytes: number | null;
-  jarChecksum: string | null;
-  exposedPort: number | null;
-  routeUrl: string | null;
-  memoryLimit: string | null;
-  cpuShares: number | null;
-  currentDeploymentId: string | null;
-  previousDeploymentId: string | null;
-  createdAt: string;
-  updatedAt: string;
-}
-
-export interface DeploymentResponse {
-  id: string;
-  appId: string;
-  version: number;
-  imageRef: string;
-  desiredStatus: string;
-  observedStatus: string;
-  errorMessage: string | null;
-  orchestratorMetadata: Record<string, unknown>;
-  deployedAt: string | null;
-  stoppedAt: string | null;
-  createdAt: string;
-}
-
 export interface LicenseResponse {
   id: string;
   tenantId: string;
@@ -61,31 +19,6 @@ export interface LicenseResponse {
   token: string;
 }
 
-export interface AgentStatusResponse {
-  registered: boolean;
-  state: string;
-  lastHeartbeat: string | null;
-  routeIds: string[];
-  applicationId: string;
-  environmentId: string;
-}
-
-export interface ObservabilityStatusResponse {
-  hasTraces: boolean;
-  hasMetrics: boolean;
-  hasDiagrams: boolean;
-  lastTraceAt: string | null;
-  traceCount24h: number;
-}
-
-export interface LogEntry {
-  appId: string;
-  deploymentId: string;
-  timestamp: string;
-  stream: string;
-  message: string;
-}
-
 export interface MeResponse {
   userId: string;
   tenants: Array<{