FEAT: Init Discovery Service

discovery/internal/models/models.go

@@ -0,0 +1,8 @@
+// Package models holds the domain types the rest of the service passes
+// around, the way cms holds Video and Category: plain Go structs with no JSON
+// tags and no SQL, so that renaming a field here never moves the published
+// API (that lives in internal/api) and never rewrites a query (that lives in
+// internal/db/repositories).
+//
+// Empty until discovery has a domain to model.
+package models