chore(template): clean-slate template snapshot from bb4a0c7

Curated, product-agnostic snapshot of the post-story-04 tree: demo
content deleted, auth-only reference feature, web-next shell, all gates
green. Product-specific docs, ADRs 027-029, PRDs/epics/archive, editor
library traces, and product naming are curated out; generic template
repairs (coverage provider devDeps, root test:coverage script, live
lint fixes, root-only release-please) are kept. See TEMPLATE.md for
provenance, curation list, and usage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK

turbo/generators/templates/realtime/channel/channel.ts.hbs

@@ -0,0 +1,13 @@
+// packages/{{kebabCase feature}}/src/realtime/{{kebabCase channelSlug}}.channel.ts
+import { z } from "zod";
+import { defineRealtimeChannel } from "@repo/core-realtime";
+
+export const {{camelCase channelSlug}}Schema = z.object({}).strict();
+
+export type {{pascalCase channelSlug}}Payload = z.infer<typeof {{camelCase channelSlug}}Schema>;
+
+export const {{camelCase channelSlug}}Channel = defineRealtimeChannel(
+  "{{kebabCase feature}}.{{kebabCase channelSlug}}",
+  {{camelCase channelSlug}}Schema,
+  { scope: {{{scopeLiteral}}} },
+);