fix: TempoMapEditor crash on missing count_in + registry URL + Ollama schema

- Defensive default for count_in in TempoMapEditor prevents crash when AI omits field
- Fix hardcoded GitHub registry URL → git.avezzano.io/the_og/clicktrack-registry
- Add response_format json_schema to Ollama provider so count_in is always required

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/TempoMapEditor.tsx

@@ -34,7 +34,11 @@ export default function TempoMapEditor({
   ctpDoc,
   readOnly = false,
 }: TempoMapEditorProps) {
-  const { metadata, count_in, sections } = ctpDoc;
+  const {
+    metadata,
+    count_in = { enabled: false, bars: 2, use_first_section_tempo: true },
+    sections,
+  } = ctpDoc;
 
   return (
     <div className="space-y-5">
@@ -117,7 +121,7 @@ export default function TempoMapEditor({
         <p className="text-xs text-zinc-600">
           Interactive editor coming soon — contribute via the{" "}
           <a
-            href="https://github.com/your-org/clicktrack-registry"
+            href="https://git.avezzano.io/the_og/clicktrack-registry"
             className="text-blue-500 hover:underline"
           >
             community registry