Phase 3-4: Goals AI planner, Team tasks, Push notifications, i18n (CZ/HE/RU/UA)

- Goals CRUD API + AI study plan generator + progress reports
- Goals frontend page with progress bars
- Team tasks: assign, transfer, collaborate endpoints
- Push notifications: web-push, VAPID, subscribe/send
- i18n: 4 languages (cs, he, ru, ua) translation files
- notifications.js + goals.js routes

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

apps/tasks/lib/api.ts

@@ -149,3 +149,58 @@ export interface Connector {
   type: string;
   config: Record<string, unknown>;
 }
+
+// Goals
+export interface Goal {
+  id: string;
+  user_id: string | null;
+  title: string;
+  target_date: string | null;
+  progress_pct: number;
+  group_id: string | null;
+  plan: Record<string, unknown> | null;
+  created_at: string;
+  updated_at: string;
+  group_name: string | null;
+  group_color: string | null;
+  group_icon: string | null;
+  tasks?: Task[];
+}
+
+export interface GoalPlanResult {
+  plan: Record<string, unknown>;
+  tasks_created: number;
+}
+
+export interface GoalReport {
+  report: string;
+  stats: { done: number; total: number; pct: number };
+}
+
+export function getGoals(token: string) {
+  return apiFetch<{ data: Goal[] }>("/api/v1/goals", { token });
+}
+
+export function getGoal(token: string, id: string) {
+  return apiFetch<{ data: Goal }>(`/api/v1/goals/${id}`, { token });
+}
+
+export function createGoal(token: string, data: Partial<Goal>) {
+  return apiFetch<{ data: Goal }>("/api/v1/goals", { method: "POST", body: data, token });
+}
+
+export function updateGoal(token: string, id: string, data: Partial<Goal>) {
+  return apiFetch<{ data: Goal }>(`/api/v1/goals/${id}`, { method: "PUT", body: data, token });
+}
+
+export function deleteGoal(token: string, id: string) {
+  return apiFetch<void>(`/api/v1/goals/${id}`, { method: "DELETE", token });
+}
+
+export function generateGoalPlan(token: string, id: string) {
+  return apiFetch<{ data: GoalPlanResult }>(`/api/v1/goals/${id}/plan`, { method: "POST", token });
+}
+
+export function getGoalReport(token: string, id: string) {
+  return apiFetch<{ data: GoalReport }>(`/api/v1/goals/${id}/report`, { token });
+}