MVP: Pulse, Memory, History modules

- Mobile-first PWA with dark glassmorphic theme
- Pulse: status card, recent sessions, memory snapshot
- Memory: view/edit agent + user memory with usage bars
- History: session list, platform filter, search, session replay
- TanStack Query hooks for all Hermes WebAPI endpoints
- Bottom tab navigation, safe-area support

lib/hooks.ts

@@ -0,0 +1,104 @@
+"use client";
+
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
+import * as api from "./api";
+
+// Sessions
+export function useSessions(limit = 20, source?: string) {
+  return useQuery({
+    queryKey: ["sessions", limit, source],
+    queryFn: () => api.fetchSessions(limit, 0, source),
+  });
+}
+
+export function useSession(id: string) {
+  return useQuery({
+    queryKey: ["session", id],
+    queryFn: () => api.fetchSession(id),
+    enabled: !!id,
+  });
+}
+
+export function useMessages(sessionId: string) {
+  return useQuery({
+    queryKey: ["messages", sessionId],
+    queryFn: () => api.fetchMessages(sessionId),
+    enabled: !!sessionId,
+  });
+}
+
+export function useSessionSearch(query: string) {
+  return useQuery({
+    queryKey: ["search", query],
+    queryFn: () => api.searchSessions(query),
+    enabled: query.length >= 2,
+  });
+}
+
+// Memory
+export function useMemory() {
+  return useQuery({
+    queryKey: ["memory"],
+    queryFn: api.fetchMemory,
+  });
+}
+
+export function useAddMemory() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ target, content }: { target: string; content: string }) =>
+      api.addMemory(target, content),
+    onSuccess: () => qc.invalidateQueries({ queryKey: ["memory"] }),
+  });
+}
+
+export function usePatchMemory() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ target, old_text, content }: { target: string; old_text: string; content: string }) =>
+      api.patchMemory(target, old_text, content),
+    onSuccess: () => qc.invalidateQueries({ queryKey: ["memory"] }),
+  });
+}
+
+export function useDeleteMemory() {
+  const qc = useQueryClient();
+  return useMutation({
+    mutationFn: ({ target, old_text }: { target: string; old_text: string }) =>
+      api.deleteMemory(target, old_text),
+    onSuccess: () => qc.invalidateQueries({ queryKey: ["memory"] }),
+  });
+}
+
+// Skills
+export function useSkills(category?: string) {
+  return useQuery({
+    queryKey: ["skills", category],
+    queryFn: () => api.fetchSkills(category),
+  });
+}
+
+export function useSkill(name: string) {
+  return useQuery({
+    queryKey: ["skill", name],
+    queryFn: () => api.fetchSkill(name),
+    enabled: !!name,
+  });
+}
+
+// Config
+export function useConfig() {
+  return useQuery({
+    queryKey: ["config"],
+    queryFn: api.fetchConfig,
+  });
+}
+
+// Health
+export function useHealth() {
+  return useQuery({
+    queryKey: ["health"],
+    queryFn: api.fetchHealth,
+    refetchInterval: 30_000,
+  });
+}