docs: update projection lifecycle guidance and generated catalogs

AGENTS.md

@@ -130,7 +130,7 @@ Real-API tests/demos read `DEEPSEEK_API_KEY`, optional `DEEPSEEK_BASE_URL`, and
 
 - Packages use `@deepseek-ai/dsh-<name>`; vendor is [rescoped](docs/rescope.md) and `private: true`. Harness packages declare `@deepseek-ai/cordis` in `peerDependencies`/`devDependencies`. Workspace dependency sections use DSH `workspace:*`, vendor/native `workspace:~` ([rules](.agents/notes/implemented/process/2026-08-10-npm-release-sequences.md)).
 - ESM everywhere (`"type": "module"`). Use package names across packages and `.ts` in local relative imports. Config subprocesses run built `lib/` under plain Node; source regressions use their declared launcher ([testing policy](docs/testing.md#test-subprocess-launch-modes)). The `dsh` CLI source launch runs through tsx's ESM-only hook (`node --import tsx/esm`); modules it reaches must stay ESM (no CJS-only exports) — Node's native TypeScript modes are unavailable across the engines range ([source-launch contract](.agents/notes/implemented/architecture/2026-07-29-dsh-source-launch-tsx-esm.md)). Raw/Web `cordis.yml` bare plugins must appear in their resolver manifest's `dependencies`; `verify-cordis-config` enforces it.
-- **Registrations are effects**: every contribution goes through `ctx.effect()` / `ctx.on()`; a registry's `register()` returns the disposer.
+- **Registrations are effects**: every contribution goes through `ctx.effect()` / `ctx.on()`; a registry's `register()` returns the disposer, directly or through its documented registration handle.
 - **Typed events use declaration merging** and merge-extensible maps. Event JSDoc needs `@mode` and payload `@param`. Public service methods document parameters and non-void returns. `SessionEventMap` members are required-on-read unless the envelope carries `ignorable: true`. Bump `SESSION_FORMAT_VERSION` only when existing discriminators cannot prevent unsafe interpretation; same-version changes require safe reader behavior ([review](.agents/notes/implemented/process/2026-10-08-session-reader-compatibility-review.md)).
 - **Switch on discriminant tags.** Closed unions end in `assertNever`; merge-extensible unions fall through a documented default.
 - **Waterfall listeners MUST call `next()`** to delegate; returning without it short-circuits the chain ([semantics](docs/cordis-primer.md#cordis-waterfall-semantics)).