Site 1.1.0: beat jump in the builder, version and changelog, key colours

- Beat jump (experimental) on the mods page, in the docs and in the builder
  (needs hot cue keys; dependencies are ticked and unticked as a chain).
- Key notation 1.2.0: keys in their Camelot wheel colour, also in BROWSE.
- Version badge at the top with a changelog; every mod's version on its
  card and in the builder. make_builder_data.py writes assets/versions.js
  from tools/changelog.json and the mods' versions and stamps the pages'
  CSS and script links with ?v=<site version>.
- The generator keeps a changed copy of the UTILITY table as the user's
  own table plus our bytes (beat jump renames an item).
- Upcoming: quick search, USB auto load and phase meter reverse (in testing).

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

tools/changelog.json

@@ -0,0 +1,38 @@
+{
+  "_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": "1.1.0",
+      "date": "2026-10-20",
+      "changes": [
+        "Beat jump is in the builder (experimental): TRACK SEARCH jumps 1/2/4/8 beats, gapless, in phase.",
+        "Key notation 1.2.0: the key in its Camelot wheel colour, also in BROWSE › KEY and INFO; lists of keys converted too.",
+        "Hot cue keys 1.2.0: hot cues load in the background, the deck's keys are locked and HOT KEYS blinks LOADING meanwhile; search and slip no longer upset after a load.",
+        "Version shown at the top, with this changelog; every mod has its own version.",
+        "Upcoming: quick search, USB auto load and a reversed phase meter."
+      ]
+    },
+    {
+      "version": "1.0.0",
+      "date": "2026-10-19",
+      "changes": [
+        "First release of the site: the mods, the in-browser builder, docs and upcoming."
+      ]
+    }
+  ],
+  "mods": {
+    "beatjump": [
+      {"version": "1.0.0", "date": "2026-10-20", "changes": ["Jumps in the DSP's decoded audio, playing, paused or at cue standby; presses the DSP cannot jump yet are ignored, so no EMERGENCY LOOP."]}
+    ],
+    "hotcuekeys": [
+      {"version": "1.2.0", "date": "2026-10-20", "changes": ["Background loading invisible; keys locked and LOADING blinking while a track loads; no more interference with search and slip."]},
+      {"version": "1.1.0", "date": "2026-10-19", "changes": ["Hot cue engine: instant hot cues from the DSP's slots, saved on the USB in rekordbox colours."]},
+      {"version": "1.0.0", "date": "2026-10-18", "changes": ["Hot cues A-C on the BEAT DIVIDE keys: play, gate, set, delete."]}
+    ],
+    "keynotation": [
+      {"version": "1.2.0", "date": "2026-10-20", "changes": ["Keys in their notation and colour everywhere on the screen, BROWSE › KEY included; the SEARCH input is left alone."]},
+      {"version": "1.1.0", "date": "2026-10-19", "changes": ["The key in its Camelot wheel colour in the title bar."]},
+      {"version": "1.0.0", "date": "2026-10-19", "changes": ["Camelot, Open Key or classic notation, UTILITY › KEY NOTATION."]}
+    ]
+  }
+}