Site 1.2.0: rgb_waveform is now Advanced waveforms

Renamed everywhere (builder, pages, data); the built update is byte for byte
the same. Upcoming: UTILITY > WAVEFORM (BLUE / RGB / 3BAND) in testing. The
generator builds the released state only (patch(..., public=True)).

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

tools/changelog.json

@@ -1,6 +1,14 @@
 {
   "_about": "The site's changelog, newest first. Versions follow Semantic Versioning (MAJOR.MINOR.PATCH), dates ISO 8601 (DIN EN 28601). make_builder_data.py adds every mod's current version from its module and writes assets/versions.js.",
   "site": [
+    {
+      "version": "1.2.0",
+      "date": "2026-10-20",
+      "changes": [
+        "rgb_waveform is now called advanced_waveforms (Advanced waveforms); the old name still works in the patcher.",
+        "Upcoming: UTILITY › WAVEFORM with BLUE / RGB / 3BAND for advanced waveforms, in testing."
+      ]
+    },
     {
       "version": "1.1.1",
       "date": "2026-10-20",