feat: migrate team_members to OIDC-based auth collection and update docker-compose environment configuration

pb_migrations/1781000000_team_members_to_auth.js

@@ -20,6 +20,25 @@
 // providers) or ship a follow-up migration.
 migrate((app) => {
   // 1. Drop the old PIN-based collection (takes the PIN records with it).
+  //    Other collections (micro_learning_completions, theme_session_completions)
+  //    have relation fields pointing to the old team_members — PocketBase refuses
+  //    to delete a referenced collection.  Remove those relation fields first,
+  //    delete the old collection, create the new auth collection, then re-add
+  //    the relation fields pointing to the new collection.
+  const relDeps = [
+    { collection: "micro_learning_completions", fieldId: "rel_team_member_id", fieldName: "team_member_id" },
+    { collection: "theme_session_completions",  fieldId: "rel_tsc_team_member", fieldName: "team_member_id" },
+  ];
+
+  // Remove blocking relation fields so the old collection can be deleted.
+  for (const dep of relDeps) {
+    try {
+      const col = app.findCollectionByNameOrId(dep.collection);
+      col.fields.removeById(dep.fieldId);
+      app.save(col);
+    } catch (_) { /* collection doesn't exist yet — skip */ }
+  }
+
   try {
     const old = app.findCollectionByNameOrId("team_members");
     app.delete(old);
@@ -231,6 +250,24 @@ migrate((app) => {
   });
 
   app.save(collection);
+
+  // 3. Re-add the relation fields pointing to the new auth collection.
+  for (const dep of relDeps) {
+    try {
+      const col = app.findCollectionByNameOrId(dep.collection);
+      const newField = new Field({
+        id:            dep.fieldId,
+        name:          dep.fieldName,
+        type:          "relation",
+        required:      true,
+        collectionId:  collection.id,
+        cascadeDelete: true,
+        maxSelect:     1,
+      });
+      col.fields.add(newField);
+      app.save(col);
+    } catch (_) { /* collection doesn't exist — skip */ }
+  }
 }, (app) => {
   // Down: drop the auth collection and recreate the original PIN-based base
   // collection (without data — the original records are gone).