feat(v2): candidate pool SQL (admin exclusion preserved, no hard LIMIT 10) + verbatim legacy SQL for shadow mode

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

n8n/nodes/build-sql-candidatos.node.test.js

@@ -0,0 +1,19 @@
+const { test } = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const path = require('node:path');
+
+test('SQL de candidatos V2 preserva a exclusao administrativa do V1', () => {
+  const sql = fs.readFileSync(path.join(__dirname, '..', '..', 'sql', 'candidatos_v2_glpi.sql'), 'utf8');
+  assert.ok(sql.includes("NOT LIKE 'ADMINISTRATIVO%'"));
+  assert.ok(sql.includes("NOT LIKE 'DESENVOLVIMENTO%'"));
+  assert.ok(sql.includes("NOT LIKE 'INFRA%'"));
+  assert.ok(sql.includes('is_deleted = false'));
+  assert.ok(sql.includes('status NOT IN (5, 6)'));
+});
+
+test('SQL de candidatos V2 NAO tem mais LIMIT fixo em 10 (funil maior)', () => {
+  const sql = fs.readFileSync(path.join(__dirname, '..', '..', 'sql', 'candidatos_v2_glpi.sql'), 'utf8');
+  assert.ok(sql.includes('LIMIT {CANDIDATE_POOL_SIZE}'));
+  assert.ok(!sql.includes('LIMIT 10'));
+});