refactor: framework modules log through diary components

- Each module logs through diary.For(<package>): cabana, lagoon, attach, cooler, postcard, beachcomber, lighthouse, centrifugo, flare, phrasebook, wristband, bouncer
- App-published *slog.Logger overrides stay first; messages and attributes unchanged
- sunscreen: InstallDefault documented as the compatibility entry point; diary wraps every channel
- READMEs list diary as a dependency; logging docs: plugins use diary.For

modules/beachcomber/README.md

@@ -183,7 +183,7 @@ ids, err := svc.Engine().SearchIDs(ctx, svc.IndexName(&models.Post{}), beachcomb
 
 ## Dependencies
 
-- `backpack`, `compass` and `lagoon` (callback installation and `lagoon.AfterCommit`) from this repository.
+- `backpack`, `compass`, `diary` (component logger `beachcomber` when the app publishes no logger) and `lagoon` (callback installation and `lagoon.AfterCommit`) from this repository.
 - `gorm.io/gorm` (sync callbacks and reloads).
 - The Typesense client is plain `net/http`; no Typesense SDK is used.
 

modules/beachcomber/beachcomber.go

@@ -16,10 +16,15 @@ import (
 	"sync"
 
 	"git.golem15.com/golem15/summercms/modules/backpack"
+	"git.golem15.com/golem15/summercms/modules/diary"
 	"git.golem15.com/golem15/summercms/modules/lagoon"
 	"gorm.io/gorm"
 )
 
+// moduleLog is beachcomber's logger: records carry component=beachcomber and follow
+// log.components.beachcomber (diary).
+var moduleLog = diary.For("beachcomber")
+
 // DefaultDriver is the engine used when search.driver is empty.
 const DefaultDriver = NullEngine
 
@@ -130,10 +135,11 @@ func (s *Service) IndexName(m Searchable) string {
 	return s.Prefix() + m.SearchableAs()
 }
 
-// Logger returns the app logger sync failures are logged through.
+// Logger returns the app logger sync failures are logged through: the
+// logger the application published, else the beachcomber component logger.
 func (s *Service) Logger() *slog.Logger {
 	if s == nil || s.log == nil {
-		return slog.Default()
+		return moduleLog
 	}
 	return s.log
 }
@@ -179,5 +185,5 @@ func loggerFromApp(app *backpack.App) *slog.Logger {
 			return log
 		}
 	}
-	return slog.Default()
+	return moduleLog
 }