Refactor/project structure (#3085)

* refactor project structure

* environment-based default registry

* fix tests

* update build container

* use docker platform for iso build emulation

* simplify compat

* Fix docker platform spec in run-compat.sh

* handle riscv compat

* fix bug with dep error exists attr

* undo removal of sorting

* use qemu for iso stage

---------

Co-authored-by: Mariusz Kogen <k0gen@pm.me>
Co-authored-by: Matt Hill <mattnine@protonmail.com>

core/.sqlx/query-bc9382d34bf93f468c64d0d02613452e7a69768da179e78479cd35ee42b493ae.json

@@ -0,0 +1,16 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "INSERT INTO user_activity (created_at, server_id, arch) VALUES ($1, $2, $3)",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Timestamptz",
+        "Varchar",
+        "Varchar"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "bc9382d34bf93f468c64d0d02613452e7a69768da179e78479cd35ee42b493ae"
+}