Cut non-essential prose from docs and comments, and require the same of every future change

README loses the competitor comparison, the personas and the repeated philosophy; the
five near-identical E2E command blocks become a table plus one command, and the file
map a clause per entry. AGENTS.md keeps every decision but drops the narrative around
them. todo.md's completed items collapse to their task line — git holds the rest.

Comments lose restatement, README duplication and history ("used to", "originally",
dated notes). AGENTS.md gains a Prose discipline section making this a standing pass on
every change rather than a one-off cleanup.

src/compose.test.ts now expects 6 documented E2E run commands, not 10, since the README
states the command once instead of per suite.

examples/plugins/admin/plugin.ts

@@ -1,10 +1,8 @@
-// Admin example plugin: the Users / Groups / OAuth2-clients screens for running the system.
-// These used to ship inside the core; they were extracted here so a fresh clone has no built-in admin
-// GUI. Copy this folder to plugins/admin (then restart) to enable it — see README → Quick start.
+// Admin example plugin: the Users / Groups / OAuth2-clients screens for running the system. Copy
+// this folder to plugins/admin (then restart) to enable it — see README → Quick start.
 //
-// It is a *system* plugin: its handlers reach the host's Ory admin clients (Kratos/Keto/Hydra) and the
-// instant-revoke hook via ctx.system, which the host populates when those services are wired (the dev
-// stack wires all of them). Where a capability is absent the screen degrades to a themed 503.
+// It is a *system* plugin: its handlers reach the host's Ory admin clients and the instant-revoke
+// hook via ctx.system. Where a capability is absent the screen degrades to a themed 503.
 
 import { definePlugin, type HttpMethod, type Route, type RouteHandler } from "#plugin-api";
 import { clientsCreate, clientsDeleteConfirm, clientsDelete, clientsDetail, clientsList, clientsNewForm } from "./admin-clients.ts";