WIP microprints source now showing

also added go to install showboat and rodney for the next steps.

microprints work in qwan tracker, but not in firehose. some of the
rendering is in the project, maybe the library should provide sample
webpages.

app/test/firehose_web/live/microprints_live_test.exs

@@ -0,0 +1,56 @@
+defmodule FirehoseWeb.MicroprintsLiveTest do
+  use ExUnit.Case, async: true
+
+  describe "scan_source_files/0" do
+    test "returns only .ex files from app/ and blogex/ directories" do
+      files = FirehoseWeb.MicroprintsLive.scan_source_files()
+
+      # Should include app/lib files
+      assert "lib/firehose.ex" in files
+    end
+
+    test "does not include files from _build/ directory" do
+      files = FirehoseWeb.MicroprintsLive.scan_source_files()
+
+      refute Enum.any?(files, &String.starts_with?(&1, "_build/"))
+    end
+
+    test "does not include files from deps/ directory" do
+      files = FirehoseWeb.MicroprintsLive.scan_source_files()
+
+      refute Enum.any?(files, &String.starts_with?(&1, "deps/"))
+    end
+
+    test "does not include files from examples/ directory" do
+      files = FirehoseWeb.MicroprintsLive.scan_source_files()
+
+      refute Enum.any?(files, &String.contains?(&1, "/examples/"))
+    end
+
+    test "does not include test files" do
+      files = FirehoseWeb.MicroprintsLive.scan_source_files()
+
+      refute Enum.any?(files, &String.contains?(&1, "/test/"))
+    end
+
+    test "paths are relative (no leading slash or absolute path)" do
+      files = FirehoseWeb.MicroprintsLive.scan_source_files()
+
+      refute Enum.any?(files, &String.starts_with?(&1, "/"))
+    end
+
+    test "app paths do not contain source dir prefix" do
+      files = FirehoseWeb.MicroprintsLive.scan_source_files()
+
+      app_files = Enum.filter(files, &String.starts_with?(&1, "lib/"))
+      refute Enum.any?(app_files, &String.starts_with?(&1, "app/"))
+    end
+
+    test "blogex paths start with ../blogex/" do
+      files = FirehoseWeb.MicroprintsLive.scan_source_files()
+
+      blogex_files = Enum.filter(files, &String.starts_with?(&1, "../blogex/"))
+      refute blogex_files == []
+    end
+  end
+end