Promote rules_flutter 0.1.0 public contract

.bazelrc

@@ -1,4 +1,4 @@
-# Action execution policy lives in tools/flutter/defs.bzl; do not set a global
+# Action execution policy lives in flutter/private/rules.bzl; do not set a global
 # spawn strategy here.
 common --enable_bzlmod
 

BUILD.bazel

@@ -1,3 +1,10 @@
+# The root package is inside the Ruleset Module, not a consumer: it asserts an
+# implementation helper below, which is the only reason it reaches into
+# //flutter/private.
+# buildifier: disable=bzl-visibility
+load("//flutter/private:android.bzl", "flutter_assets_dir")
+load("//tools/ci:assertions.bzl", "expect_equal")
+
 # The root package exists so //tools/format:buildifier_test has a label in it to
 # locate the tree it should check. Nothing reads MODULE.bazel's contents through
 # this export.
@@ -8,3 +15,13 @@
 package(default_visibility = ["//visibility:public"])
 
 exports_files(["MODULE.bazel"])
+
+# Asserted rather than merely called: a silently wrong prefix is the failure
+# this helper exists to prevent, and the root package is the case with no
+# separator. Checked here rather than from a Consumer Module because the
+# supported API deliberately does not export the helper.
+expect_equal(
+    flutter_assets_dir(assets = ":assets"),
+    "assets",
+    "flutter_assets_dir in the root package",
+)

MODULE.bazel

@@ -1,9 +1,8 @@
 module(
-    name = "rules_flutter",
-    version = "0.1.0",
+    name = "sameri11_rules_flutter",
 )
 
-flutter = use_extension("//tools/flutter:repo.bzl", "flutter")
+flutter = use_extension("//flutter/private:repo.bzl", "flutter")
 use_repo(
     flutter,
     "flutter_embedding_debug",
@@ -22,7 +21,7 @@ bazel_dep(name = "buildifier_prebuilt", version = "8.5.1.3", dev_dependency = Tr
 # For build_test, which is what makes the guard rules runnable under
 # `bazel test`. The guards fail as *actions*, which is stronger than a test --
 # anything depending on them fails too -- so they are wrapped rather than
-# converted. Not a dev_dependency: //tools/flutter:defs.bzl loads it, so it has
+# converted. Not a dev_dependency: //flutter/private:rules.bzl loads it, so it has
 # to be visible to every consumer of the rules, which also means no consumer
 # declares it for this purpose themselves.
 bazel_dep(name = "bazel_skylib", version = "1.8.2")
@@ -51,7 +50,7 @@ bazel_dep(name = "rules_kotlin", version = "2.4.0")
 bazel_dep(name = "rules_foreign_cc", version = "0.15.1")
 
 # Explicit rather than inherited: the native cc rules were removed from Bazel,
-# so `rules_cc` has to be visible to this module for //tools/flutter:android.bzl
+# so `rules_cc` has to be visible to this module for //flutter/private:android.bzl
 # to load find_cc_toolchain.bzl -- which is how the strip rules reach the NDK's
 # llvm-strip instead of hardcoding a path. Only the Android half needs it.
 bazel_dep(name = "rules_cc", version = "0.2.17")
@@ -64,11 +63,11 @@ bazel_dep(name = "rules_cc", version = "0.2.17")
 bazel_dep(name = "rules_android_ndk", version = "0.1.5")
 
 # Wrapped rather than used directly, so an absent NDK yields a toolchain-less
-# stub instead of a failed fetch. See //tools/flutter:ndk.bzl.
+# stub instead of a failed fetch. See //flutter/private:ndk.bzl.
 # `platforms` is declared for the Android NDK toolchain's platform constraints.
 bazel_dep(name = "platforms", version = "1.0.0")
 
-android_ndk = use_extension("//tools/flutter:ndk.bzl", "android_ndk")
+android_ndk = use_extension("//flutter:extensions.bzl", "android_ndk")
 use_repo(android_ndk, "androidndk", "androidndk_cmake")
 
 remote_android_extensions = use_extension(