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]>

tests/sql-generator.test.ts

@@ -7,7 +7,7 @@ const gen = (genObject: any, extra: Record<string, any> = {}) =>
 describe("identifiers", () => {
     test("binds values and keeps identifiers", () => {
         const { string, values } = gen({ query: { email: { value: "[email protected]" } } });
-        expect(string).toBe("SELECT * FROM users WHERE (email = ?)");
+        expect(string).toBe("SELECT * FROM `users` WHERE (`email` = ?)");
         expect(values).toEqual(["[email protected]"]);
     });
 
@@ -51,14 +51,14 @@ describe("targetId", () => {
             { targetId: 5 },
         );
         expect(string).toBe(
-            "SELECT * FROM users WHERE (a = ? OR b = ?) AND id = ?",
+            "SELECT * FROM `users` WHERE (`a` = ? OR `b` = ?) AND id = ?",
         );
         expect(values).toEqual([1, 2, 5]);
     });
 
     test("accepts numeric strings", () => {
         const { string, values } = gen({}, { targetId: "7" });
-        expect(string).toBe("SELECT * FROM users WHERE id = ?");
+        expect(string).toBe("SELECT * FROM `users` WHERE id = ?");
         expect(values).toEqual([7]);
     });
 
@@ -79,13 +79,13 @@ describe("targetId", () => {
             },
             { targetId: 3 },
         );
-        expect(string).toEndWith("WHERE users.id = ?");
+        expect(string).toEndWith("WHERE `users`.id = ?");
     });
 
     test("is part of the where clause used by update / delete", () => {
         const { where } = gen({ query: { a: { value: 1 } } }, { targetId: 2 });
         expect(where).toEqual({
-            string: "WHERE (a = ?) AND id = ?",
+            string: "WHERE (`a` = ?) AND id = ?",
             values: [1, 2],
         });
     });
@@ -100,17 +100,17 @@ describe("values", () => {
         const { string, values } = gen({
             query: { id: { value: [1, 2], equality: "IN" } },
         });
-        expect(string).toBe("SELECT * FROM users WHERE (id IN (?, ?))");
+        expect(string).toBe("SELECT * FROM `users` WHERE (`id` IN (?, ?))");
         expect(values).toEqual([1, 2]);
     });
 
     test("empty IN matches nothing, empty NOT IN matches everything", () => {
         expect(gen({ query: { id: { value: [], equality: "IN" } } }).string).toBe(
-            "SELECT * FROM users WHERE (1 = 0)",
+            "SELECT * FROM `users` WHERE (1 = 0)",
         );
         expect(
             gen({ query: { id: { value: [], equality: "NOT IN" } } }).string,
-        ).toBe("SELECT * FROM users WHERE (1 = 1)");
+        ).toBe("SELECT * FROM `users` WHERE (1 = 1)");
     });
 
     test("BETWEEN needs exactly two values", () => {
@@ -123,7 +123,7 @@ describe("values", () => {
 describe("pagination", () => {
     test("page is converted to an offset", () => {
         expect(gen({ limit: 10, page: 3 }).string).toBe(
-            "SELECT * FROM users LIMIT 10 OFFSET 20",
+            "SELECT * FROM `users` LIMIT 10 OFFSET 20",
         );
     });