feat: wire convex data foundations

.agents/skills/convex-setup-auth/agents/openai.yaml

@@ -0,0 +1,14 @@
+interface:
+  display_name: "Convex Setup Auth"
+  short_description:
+    "Set up Convex auth, user identity mapping, and access control."
+  icon_small: "./assets/icon.svg"
+  icon_large: "./assets/icon.svg"
+  brand_color: "#2563EB"
+  default_prompt:
+    "Set up authentication for this Convex app. Figure out the provider first,
+    then wire up the user model, identity mapping, and access control with the
+    smallest solid implementation."
+
+policy:
+  allow_implicit_invocation: true