feat: H1 conversion on the API, markdown and import paths

- the /_journal/api/v1 post writes convert default and translated content
  in the write transaction and answer an additive notices key
- journal:import-posts converts and prints the converted count
  (ImportFromDirConfig, ImportStats.H1Converted)
- a category's pillar text saved in the admin answers
  editor.h1_converted_category
- every GET /categories row reports content_h1_to_h2 (additive key)

controllers/posts.go

@@ -12,6 +12,7 @@ import (
 	"git.golem15.com/golem15/summercms/modules/backpack"
 	"git.golem15.com/golem15/summercms/modules/bouncer"
 	"git.golem15.com/golem15/summercms/modules/cabana"
+	"git.golem15.com/golem15/summercms/modules/compass"
 	"git.golem15.com/golem15/summercms/modules/pact"
 	"gorm.io/gorm"
 )
@@ -345,7 +346,11 @@ func (c postsAdminController) runExportPosts(ctx context.Context, in pact.AdminA
 
 func (c postsAdminController) runImportPosts(ctx context.Context, in pact.AdminActionInput) (pact.AdminActionResult, error) {
 	path, dry, force := console.IOPayloadPath(in.Payload, "journal-export")
-	stats, err := console.ImportFromDir(ctx, c.db(ctx), path, force, dry, nil, func(post *models.Post) error {
+	var cfg *compass.Config
+	if app := c.application(); app != nil {
+		cfg = app.Config
+	}
+	stats, err := console.ImportFromDirConfig(ctx, c.db(ctx), cfg, path, force, dry, nil, func(post *models.Post) error {
 		return refuseUnpublishedWrite(ctx, post)
 	})
 	if err != nil {