Remove remaining SQLite-only schema and docs residue.

internal/store/postgres.go

@@ -10,17 +10,13 @@ import (
 	_ "github.com/jackc/pgx/v5/stdlib"
 )
 
-// applySchema runs semicolon-separated DDL statements, skipping PRAGMA lines.
+// applySchema runs semicolon-separated DDL statements.
 func applySchema(db *sql.DB, schema string) error {
 	for _, stmt := range strings.Split(schema, ";") {
 		stmt = strings.TrimSpace(stmt)
 		if stmt == "" {
 			continue
 		}
-		upper := strings.ToUpper(stmt)
-		if strings.HasPrefix(upper, "PRAGMA") {
-			continue
-		}
 		if _, err := db.Exec(stmt); err != nil {
 			return fmt.Errorf("%w: %s", err, stmt)
 		}