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-safe.js

@@ -25,6 +25,26 @@ export function sqlField(name, label = "field name") {
     }
     return str;
 }
+/**
+ * # Validate and quote an identifier for queries
+ * @description Quoting lets reserved words (`to`, `order`, ...) be used as
+ * names. Backticks, not double quotes: SQLite reads an unknown `"name"` as
+ * a string literal, so a typo would silently match nothing instead of
+ * failing with "no such column".
+ */
+export function sqlName(name, label = "identifier") {
+    return `\`${sqlIdent(name, label)}\``;
+}
+/**
+ * # Validate and quote a column reference
+ * @description Accepts `field`, `table.field` or `table.*`
+ */
+export function sqlColumn(name, label = "field name") {
+    return sqlField(name, label)
+        .split(".")
+        .map((part) => (part === "*" ? part : `\`${part}\``))
+        .join(".");
+}
 /**
  * # Quote an identifier for DDL statements
  */