fix(sqlite): use correct library name on Linux

On Linux, dlopen("sqlite3", ...) fails because the library is installed
as "libsqlite3.so" not "sqlite3". This made bun:sqlite unusable on
Linux systems with system-installed SQLite.

Fixes #26629

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/bun.js/bindings/sqlite/lazy_sqlite3.h

@@ -215,7 +215,7 @@ static const char* sqlite3_lib_path = "sqlite3.dll";
 #elif OS(DARWIN)
 static const char* sqlite3_lib_path = "libsqlite3.dylib";
 #else
-static const char* sqlite3_lib_path = "sqlite3";
+static const char* sqlite3_lib_path = "libsqlite3.so";
 #endif
 
 static HMODULE sqlite3_handle = nullptr;

test/regression/issue/26629.test.ts

@@ -0,0 +1,19 @@
+import { expect, test } from "bun:test";
+import { bunEnv, bunExe } from "harness";
+
+// Regression test for https://github.com/oven-sh/bun/issues/26629
+// bun:sqlite fails to locate the system SQLite library on Linux because
+// it searched for "sqlite3" instead of "libsqlite3.so".
+test("bun:sqlite should load the system SQLite library", async () => {
+  await using proc = Bun.spawn({
+    cmd: [bunExe(), "-e", "import Database from 'bun:sqlite'; new Database(':memory:'); console.log('ok')"],
+    env: bunEnv,
+    stdout: "pipe",
+    stderr: "pipe",
+  });
+
+  const [stdout, , exitCode] = await Promise.all([proc.stdout.text(), proc.stderr.text(), proc.exited]);
+
+  expect(stdout.trim()).toBe("ok");
+  expect(exitCode).toBe(0);
+});