feat: render coverage meter and station-grouped table

.obsidian/plugins/webinar-dash/test/coverage.test.js

@@ -101,3 +101,22 @@ test("groupByStation places a multi-station row under its first station only", (
   assert.equal(groups.length, 1);
   assert.equal(groups[0].station, "Memory");
 });
+
+const { reconcileConcepts } = require("../main.js").__test__;
+
+test("reconcileConcepts finds concept pages with no row", () => {
+  const rows = [{ concept: "harness", status: "covered", stations: ["Tools"], pinned: false, line: 1 }];
+  const out = reconcileConcepts(rows, ["harness", "brand-new-concept"]);
+  assert.deepEqual(out.unsynced, ["brand-new-concept"]);
+  assert.deepEqual(out.stale, []);
+});
+
+test("reconcileConcepts finds rows whose concept page is gone", () => {
+  const rows = [
+    { concept: "harness", status: "covered", stations: ["Tools"], pinned: false, line: 1 },
+    { concept: "deleted-idea", status: "absent", stations: [], pinned: false, line: 2 },
+  ];
+  const out = reconcileConcepts(rows, ["harness"]);
+  assert.deepEqual(out.stale.map((r) => r.concept), ["deleted-idea"]);
+  assert.deepEqual(out.unsynced, []);
+});