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/jobspy/tests/run.test.ts

@@ -0,0 +1,40 @@
+import { describe, expect, it } from "vitest";
+import { parseJobSpyProgressLine } from "../src/run";
+
+describe("parseJobSpyProgressLine", () => {
+  it("parses term_start progress lines", () => {
+    const event = parseJobSpyProgressLine(
+      'JOBOPS_PROGRESS {"event":"term_start","termIndex":1,"termTotal":3,"searchTerm":"engineer"}',
+    );
+
+    expect(event).toEqual({
+      type: "term_start",
+      termIndex: 1,
+      termTotal: 3,
+      searchTerm: "engineer",
+    });
+  });
+
+  it("parses term_complete progress lines", () => {
+    const event = parseJobSpyProgressLine(
+      'JOBOPS_PROGRESS {"event":"term_complete","termIndex":2,"termTotal":3,"searchTerm":"frontend","jobsFoundTerm":17}',
+    );
+
+    expect(event).toEqual({
+      type: "term_complete",
+      termIndex: 2,
+      termTotal: 3,
+      searchTerm: "frontend",
+      jobsFoundTerm: 17,
+    });
+  });
+
+  it("returns null for malformed payloads", () => {
+    expect(parseJobSpyProgressLine("JOBOPS_PROGRESS {bad json")).toBeNull();
+    expect(parseJobSpyProgressLine("JOBOPS_PROGRESS {}")).toBeNull();
+  });
+
+  it("returns null for non-progress lines", () => {
+    expect(parseJobSpyProgressLine("Found 20 jobs")).toBeNull();
+  });
+});