Fix Gleam stdlib runtime error in production

- Update gleam_compile task to copy all Gleam stdlib BEAM files
- Add release step to ensure Gleam BEAM files are included in releases
- Copy Gleam stdlib files from both priv/gleam and build directories

This fixes the "UndefinedFunctionError" for gleam@bit_array and other
Gleam stdlib modules in production by ensuring all required BEAM files
are included in the release.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

lib/mix/tasks/gleam_compile.ex

@@ -78,6 +78,23 @@ defmodule Mix.Tasks.GleamCompile do
         else
           Mix.shell().info("Gleam output directory #{gleam_output} does not exist")
         end
+        
+        # Also copy Gleam stdlib files
+        gleam_stdlib_dir = "build/dev/erlang/gleam_stdlib/ebin"
+        if File.exists?(gleam_stdlib_dir) do
+          Mix.shell().info("Copying Gleam stdlib files...")
+          
+          gleam_stdlib_dir
+          |> File.ls!()
+          |> Enum.filter(&String.ends_with?(&1, ".beam"))
+          |> Enum.each(fn beam_file ->
+            src = Path.join(gleam_stdlib_dir, beam_file)
+            dest = Path.join(ebin_dir, beam_file)
+            File.copy!(src, dest)
+          end)
+          
+          Mix.shell().info("Copied Gleam stdlib files")
+        end
       else
         # Last resort: Check for pre-compiled BEAM files in priv/gleam
         Mix.shell().info("No Gleam compiler available, checking for pre-compiled BEAM files...")
@@ -88,16 +105,23 @@ defmodule Mix.Tasks.GleamCompile do
         if File.exists?(priv_gleam) do
           File.mkdir_p!(ebin_dir)
           
-          # Look specifically for our Gleam module
-          beam_file = "aprsme@encoding.beam"
-          src = Path.join(priv_gleam, beam_file)
-          
-          if File.exists?(src) do
+          # Copy all Gleam-related BEAM files
+          priv_gleam
+          |> File.ls!()
+          |> Enum.filter(fn file -> 
+            String.ends_with?(file, ".beam") and 
+            (String.starts_with?(file, "gleam") or String.starts_with?(file, "aprsme@"))
+          end)
+          |> Enum.each(fn beam_file ->
+            src = Path.join(priv_gleam, beam_file)
             dest = Path.join(ebin_dir, beam_file)
             File.copy!(src, dest)
             Mix.shell().info("Copied pre-compiled #{beam_file} from priv/gleam")
-          else
-            Mix.shell().error("Pre-compiled #{beam_file} not found in priv/gleam")
+          end)
+          
+          # Check if we got the main module
+          if not File.exists?(Path.join(ebin_dir, "aprsme@encoding.beam")) do
+            Mix.shell().error("Pre-compiled aprsme@encoding.beam not found in priv/gleam")
           end
         else
           # Try to copy from dev build if available

mix.exs

@@ -20,6 +20,11 @@ defmodule Aprsme.MixProject do
         plt_file:
           {:no_warn,
            "_build/dev/dialyxir_erlang-#{:erlang.system_info(:otp_release)}_elixir-#{System.version()}_deps-dev.plt"}
+      ],
+      releases: [
+        aprsme: [
+          steps: [:assemble, &copy_gleam_files/1]
+        ]
       ]
     ]
   end
@@ -142,4 +147,25 @@ defmodule Aprsme.MixProject do
     #   {:aprs, github: "aprsme/aprs", branch: "main"}
     # end
   end
+  
+  # Copy Gleam BEAM files to the release
+  defp copy_gleam_files(release) do
+    app_dir = Path.join([release.path, "lib", "aprsme-#{release.version}", "ebin"])
+    File.mkdir_p!(app_dir)
+    
+    # Copy from priv/gleam if available
+    priv_gleam = "priv/gleam"
+    if File.exists?(priv_gleam) do
+      priv_gleam
+      |> File.ls!()
+      |> Enum.filter(&String.ends_with?(&1, ".beam"))
+      |> Enum.each(fn beam_file ->
+        src = Path.join(priv_gleam, beam_file)
+        dest = Path.join(app_dir, beam_file)
+        File.copy!(src, dest)
+      end)
+    end
+    
+    release
+  end
 end