multi: reformat long lines for readability

- Replace occurrences of `// nolint:lll` with `// nolint:ll` across
  files for consistency.
- Reformat multiline strings, comments, and function parameters to
  improve clarity and adhere to style guidelines.
- Add `// nolint:ll` comments where necessary to prevent linter
  warnings.

db/postgres.go

@@ -44,7 +44,7 @@ var (
 
 // PostgresConfig holds the postgres database configuration.
 //
-// nolint:lll
+// nolint:ll
 type PostgresConfig struct {
 	SkipMigrations     bool          `long:"skipmigrations" description:"Skip applying migrations on startup."`
 	Host               string        `long:"host" description:"Database server hostname."`

db/sqlite.go

@@ -47,7 +47,7 @@ var (
 // SqliteConfig holds all the config arguments needed to interact with our
 // sqlite DB.
 //
-// nolint: lll
+// nolint:ll
 type SqliteConfig struct {
 	// SkipMigrations if true, then all the tables will be created on start
 	// up if they don't already exist.