fix(worker): S2 proactive tips logic, i18n parity, hardened test DB reset

- processProactiveTips now iterates all expiring items sorted by urgency and
  emits the first candidate with a recipe that clears 7-day dedup.
- Add pt-PT proactive-tip templates; remove en-GB duplicate; parity test
  asserts against shared-types SUPPORTED_LANGUAGE_TAGS.
- Serialize DB test setup via turbo dependencies; seed truncates only *_test
  DBs, guarded by both --test flag and DB name suffix.

apps/worker/test/proactive-tip-i18n.test.ts

@@ -0,0 +1,25 @@
+import { describe, it, expect } from "vitest";
+import { TEMPLATES } from "../src/templates/proactive-tips.js";
+import { SUPPORTED_LANGUAGE_TAGS } from "@app/shared-types";
+
+describe("proactive tip i18n parity", () => {
+  const canonical = new Set<string>(SUPPORTED_LANGUAGE_TAGS);
+
+  for (const [variant, locales] of Object.entries(TEMPLATES)) {
+    it(`${variant} täcker exakt de kanoniska språken utan dubbletter`, () => {
+      const keys = Object.keys(locales);
+      const uniqueKeys = new Set(keys);
+
+      expect(keys).toHaveLength(SUPPORTED_LANGUAGE_TAGS.length);
+      expect(uniqueKeys.size).toBe(keys.length);
+
+      for (const tag of SUPPORTED_LANGUAGE_TAGS) {
+        expect(keys).toContain(tag);
+      }
+
+      for (const key of keys) {
+        expect(canonical.has(key)).toBe(true);
+      }
+    });
+  }
+});