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]>

src/utils/sql-generator-gen-join-str.ts

@@ -3,7 +3,7 @@ import type {
     ServerQueryParamsJoinMatchObject,
     SQLInsertGenValueType,
 } from "../types";
-import { sqlIdent, sqlOperator, sqlRawEquality } from "./sql-safe";
+import { sqlName, sqlOperator, sqlRawEquality } from "./sql-safe";
 
 type Param = {
     mtch: ServerQueryParamsJoinMatchObject;
@@ -48,10 +48,12 @@ export default function sqlGenGenJoinStr({ join, mtch, table_name }: Param) {
 
     const equality = mtch.raw_equality ? sqlRawEquality(mtch.raw_equality) : "=";
 
-    const lhs = `${sqlIdent(
-        typeof mtch.source == "object" ? mtch.source.tableName : table_name,
-        "table name",
-    )}.${sqlIdent(
+    // `table_name` is already validated and quoted by `sqlGenerator`
+    const lhs = `${
+        typeof mtch.source == "object"
+            ? sqlName(mtch.source.tableName, "table name")
+            : table_name
+    }.${sqlName(
         typeof mtch.source == "object" ? mtch.source.fieldName : mtch.source,
         "field name",
     )}`;
@@ -90,7 +92,7 @@ export default function sqlGenGenJoinStr({ join, mtch, table_name }: Param) {
                 ? mtch.target.fieldName
                 : mtch.target;
 
-        return `${sqlIdent(targetTable, "table name")}.${sqlIdent(
+        return `${sqlName(targetTable, "table name")}.${sqlName(
             targetField,
             "field name",
         )}`;