Add Coolify REST API server with Scalar docs and UI integration

Express API server on :3100 exposing all Coolify operations:
- CRUD for apps, env vars, servers
- Full upsert pipeline (create/update + env + route + deploy)
- Drift detection, Traefik route management via SSH
- Scalar API docs at /reference, OpenAPI 3.1 spec

UI: New Coolify page with app cards, deploy/delete actions,
env var expansion. Sidebar nav + React Query hooks + fetch client.

Both UI and LLM/CLI use the same HTTP endpoints.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/renderer/src/hooks/use-coolify.js

@@ -0,0 +1,54 @@
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
+import { coolifyApi } from '@/lib/api';
+import { queryKeys } from '@/lib/query-keys';
+
+export function useCoolifyApps() {
+  return useQuery({
+    queryKey: queryKeys.coolify.apps,
+    queryFn: () => coolifyApi.listApps(),
+    staleTime: 30_000,
+  });
+}
+
+export function useCoolifyServers() {
+  return useQuery({
+    queryKey: queryKeys.coolify.servers,
+    queryFn: () => coolifyApi.listServers(),
+    staleTime: 60_000,
+  });
+}
+
+export function useCoolifyNextPort() {
+  return useQuery({
+    queryKey: queryKeys.coolify.nextPort,
+    queryFn: () => coolifyApi.getNextPort(),
+    staleTime: 30_000,
+  });
+}
+
+export function useCoolifyDeploy() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (uuid) => coolifyApi.deploy(uuid),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.coolify.apps }),
+  });
+}
+
+export function useCoolifyUpsert() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ projectPath, appName }) => coolifyApi.upsert(projectPath, appName),
+    onSuccess: () => {
+      qc.invalidateQueries({ queryKey: queryKeys.coolify.apps });
+      qc.invalidateQueries({ queryKey: queryKeys.coolify.nextPort });
+    },
+  });
+}
+
+export function useCoolifyDelete() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: (uuid) => coolifyApi.deleteApp(uuid),
+    onSuccess: () => qc.invalidateQueries({ queryKey: queryKeys.coolify.apps }),
+  });
+}