Add queue tables, quote SQL identifiers (v1.3.0)

- isQueue table option adds queue columns and a (status, available_at)
  index; BunSQLite.queue exposes add, claim, complete, fail and
  release_stale with atomic claims
- Set busy_timeout on connections so workers in separate processes wait
  instead of failing with SQLITE_BUSY
- Quote table and column names with backticks in generated SQL, so
  reserved words (to, order, group) work and unknown columns error
  instead of matching as string literals
- Tests for queue ops, multi-process claims and reserved-word names

Co-Authored-By: Claude Opus 5.5 <[email protected]>

dist/utils/sql-generator-grab-select-field-sql.js

@@ -1,20 +1,20 @@
 import sqlGenGrabConcatStr from "./sql-generator-grab-concat-str";
-import { sqlField, sqlIdent } from "./sql-safe";
+import { sqlColumn, sqlName } from "./sql-safe";
 export default function sqlGenGrabSelectFieldSQL({ selectFields, append_table_names, table_name }) {
     let str = "";
     str += ` ${selectFields
         ?.map((fld) => {
         if (typeof fld != "object") {
-            return sqlField(fld);
+            return sqlColumn(fld);
         }
-        const fld_name = sqlField(fld.fieldName);
+        const fld_name = sqlColumn(fld.fieldName);
         const final_fld_name = append_table_names && !fld_name.includes(".")
             ? `${table_name}.${fld_name}`
             : fld_name;
         if (fld.group_concat) {
             return sqlGenGrabConcatStr({
                 field: final_fld_name,
-                alias: fld.group_concat.alias || fld.alias || fld_name,
+                alias: fld.group_concat.alias || fld.alias || String(fld.fieldName),
                 separator: fld.group_concat.separator,
                 distinct: fld.group_concat.distinct,
             });
@@ -46,7 +46,7 @@ export default function sqlGenGrabSelectFieldSQL({ selectFields, append_table_na
             fld_str += final_fld_name;
         }
         if (alias) {
-            fld_str += ` AS ${sqlIdent(alias, "alias")}`;
+            fld_str += ` AS ${sqlName(alias, "alias")}`;
         }
         return fld_str;
     })