feat(14.3-02): add the sunrise bootstrap script module

- modules/sunrise/new.sh: curl | bash installer wrapped in main(), checks
  Go 1.27+/git/Docker, clones or fast-forwards the framework at the newest
  release tag (SUMMERCMS_REPO/DIR/REF overrides), installs summer and runs
  summer new next to the checkout, prints the cd line and a PATH hint
- sunrise.Script() returns a fresh copy of the embedded script
- smoke, shape, truncation and gated end-to-end tests; README and modules row

README.md

@@ -90,6 +90,7 @@ The `migrate`, `migrate:status`, `migrate:rollback`, `serve` and admin commands
 | [party](modules/party/README.md) | Compiled plugin registry that orders plugins by their dependencies and runs their Register and Boot lifecycle. |
 | [phrasebook](modules/phrasebook/README.md) | Namespaced translation catalogs loaded from plugin YAML, with locale fallback, placeholder interpolation and CLDR pluralization. |
 | [postcard](modules/postcard/README.md) | Transactional mail from plugin-owned Markdown templates and layouts, delivered through a memory, log or SMTP driver. |
+| [sunrise](modules/sunrise/README.md) | Bootstrap script that installs the summer CLI and creates a new SummerCMS application in one command, embedded so it is versioned with the framework. |
 | [sunscreen](modules/sunscreen/README.md) | Credential-redacting slog handler that keeps API keys, tokens and passwords out of application logs. |
 | [surf](modules/surf/README.md) | HTTP routing for SummerCMS: collects plugin routes and named middleware into a `net/http` ServeMux with constraints, rate limiting, body limits, CORS and panic recovery, and provides the `serve` and `route:list` commands. |
 | [tide](modules/tide/README.md) | HTTP parity toolkit that records request and response fixtures from a reference backend, replays them against a new one and reports normalized differences. |