Merge remote-tracking branch 'origin/master' into codex/rfc-subagent-background-tasks

Adopts #220 (tool-cordis + the gen-cordis-api gate: the runtime API
catalog regenerated with ctx.tasks/onCleanup on it) and #225 (shared
transcript renderer). Tool-catalog expectations take the union
(cordis_* + task_*); packages/README budget adopts master's 660
ceiling, which absorbs both new group rows.

tsconfig.base.json

@@ -52,6 +52,7 @@
         "./packages/web/*/src",
         "./packages/timeout/*/src",
         "./packages/todo/*/src",
+        "./packages/cordis/*/src",
         "./packages/hooks/*/src",
         "./packages/session-persistence/*/src",
         "./packages/ui/*/src",