feat(14-01): sunscreen redacting slog handler installed by every generated main

- Wrap redacts sensitive keys at any depth and scrubs Bearer, sk- and x-api-key shapes
- InstallDefault is the first statement of the generated run; hello main regenerated
- surf test pins that recovered panics echo no credential
- sunscreen README, root modules row and the logging docs page

README.md

@@ -99,6 +99,7 @@ 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. |
+| [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. |
 | [towel](modules/towel/README.md) | Request-scoped actor, organization, collection and locale values carried through `context.Context`. |