Tune key at every location: the key the tracks send must reach each location's FOH (SuperRack) in that location's own Planning Center key

NA works out each location's expected Waves Tune programs (campus_tune) and serves them at /api/tune/<id>; locations
fetch their list, read ProPresenter through Companion's connection, and compare with a MIDI witness on the FOH Mac
(SC FOH now; WS FOH needs the Command Line Tools first). FOH KEY WRONG / FOH GOT NO KEY.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_settings.py

@@ -143,6 +143,21 @@ class TestServer(unittest.TestCase):
         self.assertIn(("rosstalk", "h:prop", "h:ingest", "ok"), edges)                     # ProPresenter's cues into Companion
         self.assertEqual({t["id"] for t in w["types"]} >= {"companion", "midi", "watch", "dante"}, True)
 
+    def test_the_hub_hands_each_location_its_tune_keys(self):
+        path = os.path.join(self.data, "snapshot.json")
+        old = open(path).read()
+        snap = json.loads(old)
+        snap["tune_expect"] = {"SC": {"owe you praise": {"title": "Owe You Praise", "key": "Eb", "clips": ["Ebmaj"], "programs": [7]}}}
+        try:
+            with open(path, "w") as f:
+                json.dump(snap, f)
+            st, body = get(self.port, "/api/tune/sc")
+            self.assertEqual((st, json.loads(body)["songs"]["owe you praise"]["programs"]), (200, [7]))
+            self.assertEqual(get(self.port, "/api/tune/ws")[0], 404)                       # no list for WS yet
+        finally:
+            with open(path, "w") as f:
+                f.write(old)
+
     def test_gear_and_keys_and_pages(self):
         gear = json.loads(get(self.port, "/api/gear")[1])
         self.assertTrue(any(r["name"] == "HyperDeck_2" and "hd2" in r["watched_by"] for r in gear))