chore: tidy up project structure and normalize formatting

.gitignore

@@ -1 +1,39 @@
 node_modules
+dist
+trash
+
+# Rust/Tauri build artifacts
+src-tauri/target
+src-tauri/gen
+
+# AI/LLM tools
+.claude
+.claude/*
+CLAUDE.md
+.cursorrules
+.cursor
+.cursor/
+.copilot
+.copilot/
+.github/copilot
+.aider*
+.aiderignore
+.continue
+.continue/
+.ai
+.ai/
+.llm
+.llm/
+.windsurf
+.windsurf/
+.codeium
+.codeium/
+.tabnine
+.tabnine/
+.sourcery
+.sourcery/
+cursor.rules
+.bolt
+.bolt/
+.v0
+.v0/