Phases 1-7: Complete CljElixir compiler through Malli schema adapter

Bootstrap compiler (reader, analyzer, transformer, compiler, Mix plugin),
core protocols (16 protocols for Map/List/Tuple/BitString), PersistentVector
(bit-partitioned trie), domain tools (clojurify/elixirify), BEAM concurrency
(receive, spawn, GenServer), control flow & macros (threading, try/catch,
destructuring, defmacro with quasiquote/auto-gensym), and Malli schema
adapter (m/=> specs, auto @type, recursive schemas, cross-references).

537 compiler tests + 55 Malli unit tests + 15 integration tests = 607 total.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

mix.exs

@@ -0,0 +1,27 @@
+defmodule CljElixir.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :clj_elixir,
+      version: "0.1.0",
+      elixir: "~> 1.16",
+      start_permanent: Mix.env() == :prod,
+      compilers: Mix.compilers() ++ [:clj_elixir],
+      deps: deps(),
+      elixirc_paths: ["lib"],
+      test_paths: ["test"],
+      clj_elixir_paths: ["src"]
+    ]
+  end
+
+  def application do
+    [
+      extra_applications: [:logger]
+    ]
+  end
+
+  defp deps do
+    []
+  end
+end