internal: Annotate all components with groups

This commit ensures that the compiler has to check every component
against the groups they implement by explicitly annotating the
appropriate interfaces.

internal/wisski/ingredient/php/extras/pathbuilder.go

@@ -17,6 +17,10 @@ type Pathbuilder struct {
 	PHP *php.PHP
 }
 
+var (
+	_ ingredient.WissKIFetcher = (*Pathbuilder)(nil)
+)
+
 //go:embed pathbuilder.php
 var pathbuilderPHP string
 

internal/wisski/ingredient/php/extras/prefixes.go

@@ -25,6 +25,10 @@ type Prefixes struct {
 	MStore *mstore.MStore
 }
 
+var (
+	_ ingredient.WissKIFetcher = (*Prefixes)(nil)
+)
+
 // NoPrefix checks if this WissKI instance is excluded from generating prefixes.
 // TODO: Move this to the database!
 func (prefixes *Prefixes) NoPrefix() bool {

internal/wisski/ingredient/php/extras/stats.go

@@ -16,6 +16,10 @@ type Stats struct {
 	PHP *php.PHP
 }
 
+var (
+	_ ingredient.WissKIFetcher = (*Stats)(nil)
+)
+
 //go:embed stats.php
 var statsPHP string
 

internal/wisski/ingredient/php/users/users.go

@@ -18,6 +18,10 @@ type Users struct {
 	PHP *php.PHP
 }
 
+var (
+	_ ingredient.WissKIFetcher = (*Users)(nil)
+)
+
 //go:embed users.php
 var usersPHP string