feat: proxy routes page, OIDC login fix, NPM test connection, webhook URL fix, and UX improvements

- Add /proxies page showing deploy-managed proxy routes with project/stage links, search, and status
- Add GET /api/proxies endpoint joining instances with project/stage names
- Add POST /api/settings/npm/test endpoint for NPM connection validation
- Add GET /api/auth/mode public endpoint for auth mode detection
- Add NPM Test Connection button with validation on save
- Fix OIDC SSO button only shown when auth_mode is oidc
- Fix webhook URL showing empty when domain not set (fallback to request host)
- Fix quick deploy double-tag (image:latest:latest) by splitting tag from image URL
- Fix trim() errors on number inputs in deploy and settings forms
- Fix NPM client auto-append /api to base URL
- Sanitize NPM test error messages (no raw HTML)
- Remove healthcheck field from Quick Deploy form
- Fix env vars placeholder newline
- Make domain field optional in settings
- Set polling interval minimum to 60s
- Add Proxies and Events to sidebar navigation
- Fix SSL cert name flash on NPM settings page
- Fix empty state icon on proxies page

web/src/lib/api.ts

@@ -4,11 +4,13 @@ import type {
 	Deploy,
 	DeployLog,
 	DockerHealth,
+	ProxyHealth,
 	EventLogEntry,
 	EventLogStats,
 	InspectResult,
 	Instance,
 	NpmCertificate,
+	ProxyRoute,
 	Project,
 	ProjectDetail,
 	Registry,
@@ -265,6 +267,16 @@ export function regenerateWebhookUrl(): Promise<{ webhook_url: string }> {
 	return post<{ webhook_url: string }>('/api/settings/webhook-url/regenerate');
 }
 
+// ── Proxy Routes ───────────────────────────────────────────────────
+
+export function listProxyRoutes(): Promise<ProxyRoute[]> {
+	return get<ProxyRoute[]>('/api/proxies');
+}
+
+export function testNpmConnection(data: { npm_url?: string; npm_email?: string; npm_password?: string }): Promise<{ status: string }> {
+	return post<{ status: string }>('/api/settings/npm/test', data);
+}
+
 export function listNpmCertificates(): Promise<NpmCertificate[]> {
 	return get<NpmCertificate[]>('/api/settings/npm-certificates');
 }
@@ -315,8 +327,8 @@ export function backupDownloadUrl(id: string): string {
 
 // ── Health ──────────────────────────────────────────────────────────
 
-export function getHealth(): Promise<{ docker: DockerHealth }> {
-	return get<{ docker: DockerHealth }>('/api/health');
+export function getHealth(): Promise<{ docker: DockerHealth; proxy?: ProxyHealth }> {
+	return get<{ docker: DockerHealth; proxy?: ProxyHealth }>('/api/health');
 }
 
 // ── Auth ─────────────────────────────────────────────────────────────