feat: Add SOLID principles and TDD reference documentation

- Created solid.md to document the SOLID principles for clean code practices.
- Created tdd.md to outline Test Driven Development principles and practices.
- Added kana-rust-backend-best-practice.md as a reference guide for building a Rust backend using Axum and SeaORM.
- Established push-flow-convention.md to enforce pre-commit and pre-push hooks with versioning rules.
- Introduced AGENTS.md to provide guidance on best practices and available commands for Kilo.
- Configured kilo.json to include new skills and agents for enhanced functionality.
- Added lefthook.yml for managing git hooks to ensure code quality and adherence to conventions.

apps/interfaces/daemon/src/handler.rs

@@ -476,7 +476,7 @@ fn handle_compact(state: &mut AppStateRest) {
     let client = zesdex_infrastructure::llm::provider::LlmClient::new(api_key, model, api_base);
 
     if let Some(ref mut rt) = state.session_runtime {
-        let tokio_rt = tokio::runtime::Runtime::new().unwrap();
+        let tokio_rt = tokio::runtime::Runtime::new().expect("create tokio runtime for AI compaction");
         if let Ok(()) = tokio_rt.block_on(zesdex_application::agent::turn_service::compact_messages_with_ai(&mut rt.messages, &client)) {
             let msg_count = rt.messages.len();
             state.push_transcript(ChatMessageDisplay::new(

apps/interfaces/web/src/lib.rs

@@ -83,7 +83,7 @@ async fn static_handler(
                 .status(200)
                 .header("Content-Type", mime.to_string())
                 .body(axum::body::Body::from(data))
-                .unwrap()
+                .expect("Response builder with known-valid status and header")
                 .into_response()
         }
         Err(_) => (StatusCode::NOT_FOUND, "Not found").into_response(),