Auto-Registering Extractor System (#223)

* initial commit?

* Address PR feedback on extractor discovery and startup resilience

* Address latest PR review comments

* fix city resolution fallback when input parses empty

* address PR feedback on extractor registry and pipeline validation

* address copilot comments on manifests and registry startup

* fix extractor discovery export handling and env isolation in tests

* enforce duplicate manifest id failures in strict mode

* Fix remaining extractor registry and runtime review comments

* docs

* docs

* test all, logic remains in extractors

* Address PR review feedback on extractor registry and validation

* Revert extractor moduleResolution to bundler

* Enforce shared city filtering across all discovery sources

* Deduplicate extractor strict city post-filtering

extractors/adzuna/tests/location.test.ts

@@ -0,0 +1,15 @@
+import { describe, expect, it } from "vitest";
+import { shouldApplyStrictLocationFilter } from "../src/run";
+
+describe("adzuna location query strictness", () => {
+  it("enables strict filtering when city differs from country", () => {
+    expect(shouldApplyStrictLocationFilter("Leeds", "united kingdom")).toBe(
+      true,
+    );
+  });
+
+  it("disables strict filtering when location is country-level", () => {
+    expect(shouldApplyStrictLocationFilter("UK", "united kingdom")).toBe(false);
+    expect(shouldApplyStrictLocationFilter("United States", "us")).toBe(false);
+  });
+});