chore(justfile): set PATH literally so recipes work without per-shell asdf sourcing

Justfile

@@ -1,6 +1,10 @@
 set dotenv-load := true
 set export := true
 
+# PATH includes asdf shims so that mix / elixir / iex resolve without per-shell
+# `source ~/.asdf/asdf.sh`. Recipes inherit this via `set export := true`.
+PATH := "/root/.asdf/shims:/root/.asdf:/root/.local/bin:/usr/local/bin:/usr/bin:/bin"
+
 MIX_QUIET := "1"
 
 run: install-dependencies start-database migrate-database seed-database
@@ -69,6 +73,10 @@ test-all *args: install-dependencies
 format:
     mix format
 
+# Catch-all wrapper for arbitrary mix commands not exposed as their own recipe.
+mix *args:
+    mix {{args}}
+
 build-docker-container:
     docker build --tag mitgliederverwaltung .