Modularize frontend: API helper module and cleaner app.js

wwwroot/js/api.js

@@ -0,0 +1,44 @@
+const defaultHeaders = { "Content-Type": "application/json" };
+
+async function request(path, { method = "GET", body, adminKey } = {}) {
+  const res = await fetch(path, {
+    method,
+    headers: {
+      ...defaultHeaders,
+      ...(adminKey ? { "X-Admin-Key": adminKey } : {})
+    },
+    body: body ? JSON.stringify(body) : undefined,
+  });
+
+  if (!res.ok) {
+    let msg = `${res.status}`;
+    try {
+      const data = await res.json();
+      msg = data.error || JSON.stringify(data);
+    } catch { /* ignore */ }
+    throw new Error(msg);
+  }
+  return res.status === 204 ? null : res.json();
+}
+
+export const api = {
+  state: () => request("/api/state"),
+  me: () => request("/api/me"),
+  setName: (name) => request("/api/me/name", { method: "POST", body: { name } }),
+
+  mySuggestions: () => request("/api/suggestions/mine"),
+  createSuggestion: (payload) => request("/api/suggestions", { method: "POST", body: payload }),
+  deleteSuggestion: (id) => request(`/api/suggestions/${id}`, { method: "DELETE" }),
+  allSuggestions: () => request("/api/suggestions/all"),
+
+  myVotes: () => request("/api/votes/mine"),
+  vote: (suggestionId, score) => request("/api/votes", { method: "POST", body: { suggestionId, score } }),
+
+  results: () => request("/api/results"),
+};
+
+export const adminApi = {
+  setPhase: (phase, adminKey) => request("/api/admin/phase", { method: "POST", body: { phase }, adminKey }),
+  reset: (adminKey) => request("/api/admin/reset", { method: "POST", adminKey }),
+  factoryReset: (adminKey) => request("/api/admin/factory-reset", { method: "POST", adminKey }),
+};