Initial sources scaffolding

Author: DavisVaughan

.claude/settings.json

@@ -6,6 +6,9 @@
       "Bash(just test:*)",
       "Bash(cargo check:*)",
       "Bash(cargo insta:*)",
+      "Bash(cargo build:*)",
+      "Bash(cargo clippy:*)",
+      "Bash(cargo nextest:*)",
       "Bash(cat:*)",
       "Bash(find:*)",
       "Bash(grep:*)",