docs(agents): document omo-codex Light edition (lazycodex) across AGENTS.md tree

- root: refresh stale header (v4.2.0->v4.5.12 / 39aadbf9f->92bad87d8 / 2026-05-31), add CODEX LIGHT EDITION section (identity, marketplace sisyphuslabs/omo precision, lazycodex-ai disambiguation, 8 components, install, publish.yml lazycodex pipeline, telemetry), fix package counts and hook-handler count (13->14)
- packages: 23->26 sibling packages (+git-bash-mcp +omo-codex +shared-skills)
- packages/omo-codex: new AGENTS.md (layout, 8 components, install + sync-script mechanics)
- src/cli: note --platform=codex install path via install-codex/

src/cli/AGENTS.md

@@ -1,6 +1,6 @@
 # src/cli/ — CLI: install, run, doctor, mcp-oauth, refresh-model-capabilities, get-local-version, version, boulder
 
-**Generated:** 2026-05-20
+**Generated:** 2026-05-31
 
 ## OVERVIEW
 
@@ -19,6 +19,8 @@ Commander.js CLI with 8 commands. Entry: `index.ts` → `runCli()` in `cli-progr
 | `refresh-model-capabilities` | Refresh models.dev cache | Model capabilities refresh |
 | `boulder` | Boulder state inspector | Format work-state + tasks from `.omo/boulder-state/` |
 
+`install` accepts `--platform=opencode|codex|both` (default `opencode`). `codex`/`both` route through `install-codex/` to install the Codex CLI Light edition (also `bunx lazycodex install`). See `packages/omo-codex/AGENTS.md`.
+
 ## STRUCTURE
 
 ```