fix: set explicit tsconfig to prevent use of esbuild default

By default esbuild uses any local tsconfig.json file. With sandboxing issues (#58)
this may unexpectedly cause `esbuild_bundle` to pickup any local tsconfig.json.

e2e/smoke/BUILD

@@ -3,7 +3,7 @@ load("@bazel_skylib//rules:build_test.bzl", "build_test")
 
 esbuild(
     name = "lib",
-    srcs = ["main.js"],
+    srcs = ["main.js", "tsconfig.json"],
     entry_point = "main.js",
 )
 

e2e/smoke/tsconfig.json

@@ -0,0 +1 @@
+with invalid syntax, esbuild shouldn't use this

esbuild/private/BUILD.bazel

@@ -6,7 +6,7 @@ exports_files(
 )
 
 exports_files(
-    ["launcher.js"],
+    ["launcher.js", "empty.json"],
     visibility = ["//visibility:public"],
 )
 

esbuild/private/empty.json

@@ -0,0 +1 @@
+{}

esbuild/private/esbuild.bzl

@@ -163,6 +163,11 @@ See https://esbuild.github.io/api/#target for more details
         TODO: show how to write a config file that depends on plugins, similar to the esbuild_config macro in rules_nodejs.
     """,
     ),
+    "_tsconfig": attr.label(
+        mandatory = False,
+        allow_single_file = True,
+        default = Label("@aspect_rules_esbuild//esbuild/private:empty.json"),
+    )
 }
 
 def _bin_relative_path(ctx, file):
@@ -199,6 +204,7 @@ def _esbuild_impl(ctx):
         # Also disable the log limit and show all logs
         "logLevel": "warning",
         "logLimit": 0,
+        "tsconfig": _bin_relative_path(ctx, ctx.file._tsconfig),
         "metafile": ctx.attr.metafile,
         "platform": ctx.attr.platform,
         # Don't preserve symlinks since doing so breaks node_modules resolution
@@ -306,6 +312,8 @@ def _esbuild_impl(ctx):
     #     inputs.append(ctx.version_file)
     #     env["BAZEL_VERSION_FILE"] = ctx.version_file.path
 
+    other_inputs.append(ctx.file._tsconfig)
+
     input_sources = depset(
         copy_files_to_bin_actions(ctx, [
             file

esbuild/repositories.bzl

@@ -39,6 +39,10 @@ def _esbuild_repo_impl(repository_ctx):
         Label("@aspect_rules_esbuild//esbuild/private:launcher.js"),
         "launcher.js",
     )
+    repository_ctx.symlink(
+        Label("@aspect_rules_esbuild//esbuild/private:empty.json"),
+        "empty.json",
+    )
     build_content = """#Generated by esbuild/repositories.bzl
 load("@aspect_rules_esbuild//esbuild:toolchain.bzl", "esbuild_toolchain")
 load("@aspect_rules_js//js:defs.bzl", "js_binary")
@@ -52,7 +56,7 @@ npm_link_package(
 js_binary(
     name = "launcher",
     entry_point = "launcher.js",
-    data = [":node_modules/esbuild"],
+    data = [":node_modules/esbuild", ":empty.json"],
 )
 
 esbuild_toolchain(