refactor(runtime): rename extras/ to runtime/, drop obsolete modrinth list

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -1,7 +1,7 @@
 .env
 backups/
 drasl/config/keycloak-client-secret
-extras/authlib-injector.jar
+runtime/authlib-injector.jar
 
 # rendered configs (from tooling/render-config.sh)
 drasl/config/config.toml

extras/README.md

@@ -1,13 +0,0 @@
-# /extras
-
-Mounted read-only into the Minecraft container at `/extras`.
-
-## Required files
-
-- `authlib-injector.jar` — download latest from
-  https://github.com/yushijinhun/authlib-injector/releases
-- `modrinth-mods.txt` — one Modrinth project slug per line
-
-## Optional
-
-- `cf-mods.txt` — CurseForge mod file IDs, only if `CF_API_KEY` is set

extras/modrinth-mods.txt

@@ -1,24 +0,0 @@
-# One Modrinth project slug per line. Empty lines and # comments ignored.
-# Pin versions with :version-id for stability.
-# This is a placeholder — fill in during mod curation.
-
-# === Performance ===
-# embeddium
-# ferritecore
-# modernfix
-
-# === QoL ===
-# jei
-# jade
-
-# === Tech ===
-# mekanism
-# create
-
-# === Magic ===
-# ars-nouveau
-
-# === Map / Voice ===
-# xaeros-minimap
-# xaeros-world-map
-# simple-voice-chat

runtime/README.md

@@ -0,0 +1,11 @@
+# /runtime
+
+Runtime drop-ins mounted read-only into the Minecraft container at `/extras`.
+
+## Required files
+
+- `authlib-injector.jar` — download latest from
+  https://github.com/yushijinhun/authlib-injector/releases
+
+Mods are no longer listed here; the pack is served via packwiz
+(`PACKWIZ_URL`, see plan/04-packwiz.md).