Initial release: Disc Agenda frisbee tournament platform

Full-stack tournament management app with real-time scoring:
- Go 1.26 backend with REST API and WebSocket live scoring
- React 19 + Vite 8 frontend with mobile-first design
- File-based JSON storage with JSONL audit logs
- Multi-stage Docker build with Gitea CI/CD pipeline
- Post-tournament questionnaire with spirit voting
- Technical documentation and project description

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

frontend/src/api.js

@@ -0,0 +1,38 @@
+const API_BASE = '/api';
+
+async function fetchJSON(path) {
+  const res = await fetch(`${API_BASE}${path}`);
+  if (!res.ok) throw new Error(`API error: ${res.status}`);
+  return res.json();
+}
+
+async function postJSON(path, body) {
+  const res = await fetch(`${API_BASE}${path}`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(body),
+  });
+  if (!res.ok) throw new Error(`API error: ${res.status}`);
+  return res.json();
+}
+
+export const getTournaments = () => fetchJSON('/tournaments');
+export const getTournament = (id) => fetchJSON(`/tournaments/${id}`);
+export const getSchedule = (id) => fetchJSON(`/tournaments/${id}/schedule`);
+export const getScore = (tid, gid) => fetchJSON(`/tournaments/${tid}/games/${gid}/score`);
+export const updateScore = (tid, gid, u) => postJSON(`/tournaments/${tid}/games/${gid}/score`, u);
+export const getAuditLog = (tid, gid) => fetchJSON(`/tournaments/${tid}/games/${gid}/audit`);
+export const getQuestionnaire = (id) => fetchJSON(`/tournaments/${id}/questionnaire`);
+export const submitQuestionnaire = (id, d) => postJSON(`/tournaments/${id}/questionnaire`, d);
+export const getQuestionnaireResults = (id) => fetchJSON(`/tournaments/${id}/questionnaire/results`);
+export const getResults = (id) => fetchJSON(`/tournaments/${id}/results`);
+
+export function createGameWebSocket(tourneyId, gameId, userId = 'anon') {
+  const proto = location.protocol === 'https:' ? 'wss:' : 'ws:';
+  return new WebSocket(`${proto}//${location.host}/ws/game/${tourneyId}/${gameId}?user_id=${userId}`);
+}
+
+export function createTournamentWebSocket(tourneyId) {
+  const proto = location.protocol === 'https:' ? 'wss:' : 'ws:';
+  return new WebSocket(`${proto}//${location.host}/ws/tournament/${tourneyId}`);
+}