add: release script (#96)

* add: release script

* add: src to npm module

* fix: readme

Signed-off-by: Fouad Matin <fouad@openai.com>

---------

Signed-off-by: Fouad Matin <fouad@openai.com>

README.md

@@ -371,6 +371,21 @@ git push --force-with-lease           # updates the PR
 
 The **DCO check** blocks merges until every commit in the PR carries the footer (with squash this is just the one).
 
+### Releasing `codex`
+
+To publish a new version of the CLI, run the release scripts defined in `codex-cli/package.json`:
+
+1. Open the `codex-cli` directory
+2. Make sure you're on a branch like `git checkout -b bump-version`
+3. Bump the version and `CLI_VERSION` to current datetime: `npm run release:version`
+4. Commit the version bump (with DCO sign-off):
+   ```bash
+   git add codex-cli/src/utils/session.ts codex-cli/package.json
+   git commit -s -m "chore(release): codex-cli v$(node -p \"require('./codex-cli/package.json').version\")"
+   ```
+5. Copy README, build, and publish to npm: `npm run release`
+6. Push to branch: `git push origin HEAD`
+
 ---
 
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