fix: force re-render campaign tracking, cache dir loading, Joplin link preservation. Co-Authored-By: Fable 5

tests/test_cache.py

@@ -184,6 +184,39 @@ class TestGetNewOrUpdated:
                 tmp_cache.mark_exported("claude", c["id"], {"file_path": f"/{c['id']}.md"})
         assert seen == {f"c{i}" for i in range(5)}
 
+    def test_campaign_excludes_already_refreshed(self, tmp_cache):
+        """With a campaign stamp, conversations re-exported during the campaign
+        (exported_at >= stamp) drop out, so the remaining count shrinks to 0."""
+        convs = [{"id": f"c{i}"} for i in range(5)]
+        campaign = "2026-06-12T00:00:00+00:00"
+        # Nothing exported yet → all 5 are candidates.
+        assert len(tmp_cache.get_new_or_updated("claude", convs, force=True,
+                                                campaign_at=campaign)) == 5
+        # Re-export 2 "during" the campaign (after the stamp).
+        for cid in ("c0", "c1"):
+            tmp_cache.mark_exported("claude", cid, {"file_path": f"/{cid}.md"})
+            tmp_cache._data["claude"][cid]["exported_at"] = "2026-06-12T01:00:00+00:00"
+        remaining = tmp_cache.get_new_or_updated("claude", convs, force=True,
+                                                 campaign_at=campaign)
+        assert {c["id"] for c in remaining} == {"c2", "c3", "c4"}
+        # Finish them → none left.
+        for cid in ("c2", "c3", "c4"):
+            tmp_cache.mark_exported("claude", cid, {"file_path": f"/{cid}.md"})
+            tmp_cache._data["claude"][cid]["exported_at"] = "2026-06-12T02:00:00+00:00"
+        assert tmp_cache.get_new_or_updated("claude", convs, force=True,
+                                            campaign_at=campaign) == []
+
+    def test_force_campaign_marker_roundtrip(self, tmp_cache):
+        assert tmp_cache.get_force_campaign() is None
+        tmp_cache.set_force_campaign("2026-06-12T00:00:00+00:00")
+        assert tmp_cache.get_force_campaign() == "2026-06-12T00:00:00+00:00"
+        # Survives reload, and is not mistaken for a provider by stats().
+        reopened = Cache(tmp_cache._dir)
+        assert reopened.get_force_campaign() == "2026-06-12T00:00:00+00:00"
+        assert "force_campaign_at" not in reopened.stats()
+        tmp_cache.clear_force_campaign()
+        assert tmp_cache.get_force_campaign() is None
+
 
 class TestReexportPreservesJoplinLink:
     """A re-export must not drop the Joplin note link, or re-syncing would