fix: replace regex constraint with LIKE '%/%' for PG compat

- constraint CHECK (value_cidr LIKE '%/%') instead of regex
- regex broke on managed PG with standard_conforming_strings=off
- ALTER TABLE adds constraint on existing tables

src/db.js

@@ -35,7 +35,7 @@ async function ensureSchema() {
     CREATE TABLE IF NOT EXISTS whitelist_entries (
       id           SERIAL PRIMARY KEY,
       company_id   INTEGER NOT NULL REFERENCES companies(id) ON DELETE RESTRICT,
-      value_cidr   VARCHAR(18) NOT NULL CHECK (value_cidr ~ '^(\d{1,3}\.){3}\d{1,3}/\d{1,2}$'),
+      value_cidr   VARCHAR(18) NOT NULL CHECK (value_cidr LIKE '%/%'),
       comment      VARCHAR(255),
       created_by   VARCHAR(255) NOT NULL,
       created_at   TIMESTAMPTZ NOT NULL DEFAULT NOW(),
@@ -60,6 +60,13 @@ async function ensureSchema() {
     );
     CREATE INDEX IF NOT EXISTS idx_audit_company_time ON audit_log(company_id, created_at DESC);
   `);
+
+  // Замена constraint на managed-совместимый (без regex, который ломается от standard_conforming_strings)
+  await pool.query(`
+    ALTER TABLE whitelist_entries DROP CONSTRAINT IF EXISTS whitelist_entries_value_cidr_check;
+    ALTER TABLE whitelist_entries ADD CONSTRAINT whitelist_entries_value_cidr_check CHECK (value_cidr LIKE '%/%');
+  `).catch(() => {}); // игнор если нет прав на ALTER
+
   console.log('[db] Schema ensured');
 }