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frontend/src/store/useFocusStore.js

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+import { create } from 'zustand'
+
+const useFocusStore = create((set) => ({
+  isOpen:              false,
+  projectId:           null,
+  activeDeliverableId: null,
+
+  openFocus:  (projectId, deliverableId) => set({ isOpen: true, projectId, activeDeliverableId: deliverableId }),
+  closeFocus: ()                         => set({ isOpen: false, projectId: null, activeDeliverableId: null }),
+}))
+
+export default useFocusStore

frontend/src/store/useProjectStore.js

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+import { create } from 'zustand'
+
+const useProjectStore = create((set, get) => ({
+  projects: [],
+  loading:  false,
+  error:    null,
+
+  setProjects: (projects) => set({ projects }),
+  setLoading:  (loading)  => set({ loading }),
+  setError:    (error)    => set({ error }),
+
+  addProject: (p) => set((s) => ({ projects: [p, ...s.projects] })),
+
+  updateProject: (updated) => set((s) => ({
+    projects: s.projects.map(p => p.id === updated.id ? { ...updated, deliverables: p.deliverables } : p),
+  })),
+
+  removeProject: (id) => set((s) => ({ projects: s.projects.filter(p => p.id !== id) })),
+
+  addDeliverable: (d) => set((s) => ({
+    projects: s.projects.map(p => p.id === d.project_id
+      ? { ...p, deliverables: [...(p.deliverables||[]), d].sort((a,b) => new Date(a.due_date)-new Date(b.due_date)) }
+      : p
+    ),
+  })),
+
+  updateDeliverable: (updated) => set((s) => ({
+    projects: s.projects.map(p => p.id === updated.project_id
+      ? { ...p, deliverables: p.deliverables.map(d => d.id === updated.id ? updated : d) }
+      : p
+    ),
+  })),
+
+  removeDeliverable: (id) => set((s) => ({
+    projects: s.projects.map(p => ({ ...p, deliverables: (p.deliverables||[]).filter(d => d.id !== id) })),
+  })),
+
+  getProjectById: (id) => get().projects.find(p => p.id === id),
+}))
+
+export default useProjectStore