chore: developer experience - pre-commit hook, ai instructions, yaml formatting (#374)

* chore: developer experience - pre-commit hook, ai instructions, yaml formatting for prettier

* no prettierrc, editorconfig instead

* fixes from copilot suggestions

---------

Co-authored-by: Ferdinand Schober <ferdinandschober20@gmail.com>

.editorconfig

@@ -0,0 +1,24 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+[*.rs]
+indent_style = space
+indent_size = 4
+max_line_length = 100
+
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2
+
+[*.toml]
+indent_style = space
+indent_size = 4
+
+[*.nix]
+indent_style = space
+indent_size = 2