feat: monorepo migration phase 3

migration/python_domain_adapter.mjs

@@ -0,0 +1,19 @@
+import { spawnSync } from 'node:child_process';
+
+function call(name, args) {
+  const result = spawnSync(process.env.TOURNAMENT_PYTHON, [process.env.TOURNAMENT_BRIDGE], {
+    input: JSON.stringify({ name, args }), encoding: 'utf8', env: process.env,
+  });
+  if (result.status !== 0) throw new Error(result.stderr || 'Python bridge failed');
+  const value = JSON.parse(result.stdout);
+  if (value.error) throw new RangeError(value.error);
+  return value.result;
+}
+
+export const generateRoundRobinSchedule = (...args) => call('calendar', args);
+export const calculateClassification = (...args) => call('classification', args);
+export const calculateBracket = (...args) => call('bracket', args);
+export const downstreamMatches = (...args) => call('downstream', args);
+export const standardBracketSeedOrder = (...args) => call('seed-order', args);
+export const buildGroupQualificationPreview = (...args) => call('group-qualification', args);
+export const buildOverallQualificationPreview = (...args) => call('overall-qualification', args);