0.4.0 — Team Relay: presence + coordinator force-shelve over a generic relay

- host.team bridge + 'team' permission (SDK)
- backend: relay_http (generic HTTP pipe), p4_shelve_open, p4_protects_max
- new plugin team-relay (opt-in): Team dock, presence loop, force-shelve
- relay server (exbyte-relay/) — generic zero-dep message bus, no Perforce knowledge

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/p4.ts

@@ -114,6 +114,14 @@ export const p4 = {
   pluginSetEnabled: (id: string, enabled: boolean) => invoke<void>("plugin_set_enabled", { id, enabled }),
   pluginWriteFile: (id: string, name: string, content: string) => invoke<void>("plugin_write_file", { id, name, content }),
   registryHttpGet: (url: string) => invoke<string>("registry_http_get", { url }),
+  // generic HTTP pipe for relay-backed plugins (any http(s) URL, optional bearer)
+  relayHttp: (url: string, method: string, body?: string, token?: string) =>
+    invoke<string>("relay_http", { url, method, body, token }),
+  // shelve everything open in the default changelist → { change, files }
+  shelveOpen: (description: string) =>
+    invoke<{ change: string; files: number }>("p4_shelve_open", { description }),
+  // caller's max protection level on the server (super/admin/write/…)
+  protectsMax: () => invoke<string>("p4_protects_max"),
   pluginInstall: (src: string) => invoke<string>("plugin_install", { src }),
   pluginRemove: (id: string) => invoke<void>("plugin_remove", { id }),
   pluginsDirPath: () => invoke<string>("plugins_dir_path"),