Baseline commit of the existing Maquina Comercial Pessoal project

Tracks the app that was already in place (capture, treatment, outreach,
WhatsApp integration, server, frontend, tests, docs) so future feature
work can branch and use isolated worktrees.

tests/launcher.test.mjs

@@ -0,0 +1,17 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import fs from 'node:fs/promises';
+
+const source = await fs.readFile(new URL('../launcher/Program.cs', import.meta.url), 'utf8');
+
+test('launcher valida APP_PORT como inteiro na faixa TCP com fallback 3910', () => {
+  assert.match(source, /int\.TryParse\(port, out parsedPort\)/);
+  assert.match(source, /parsedPort\s*<\s*1\s*\|\|\s*parsedPort\s*>\s*65535/);
+  assert.match(source, /port\s*=\s*"3910"/);
+});
+
+test('launcher exige status 200 e identidade JSON da aplicacao no health', () => {
+  assert.match(source, /StreamReader/);
+  assert.match(source, /\\"app\\":\\"maquina-comercial-pessoal\\"/);
+  assert.match(source, /StatusCode\s*==\s*200/);
+});