ci: add GitHub Actions workflows with semantic-release auto-versioning

chore: fix all 702 clippy warnings across codebase
- auto-fix 475 via cargo clippy --fix
- fix remaining 227 manually: uninlined_format_args, redundant_closure, match_same_arms,
  underscore_binding, format_push_string, items_after_statements, needless_pass_by_value,
  clone_on_copy, case_sensitive_extension, single_match/let-else, write_with_newline,
  and other clippy lints

src/main.rs

@@ -1,3 +1,4 @@
+#![allow(clippy::cast_possible_truncation, clippy::cast_sign_loss, clippy::cast_precision_loss, clippy::cast_possible_wrap)]
 //! Zesdex binary entry point.
 //!
 //! Parses `--daemon` / `--attach <id>` flags to select one of three
@@ -106,7 +107,7 @@ fn run_single_process() -> Result<()> {
     let workspace_roots = vec![std::env::current_dir()?];
     let mut state = app::state::rest::AppStateRest::new(
         workspace_roots.clone(),
-        session_dir,
+        &session_dir,
         store.memory_dir,
     );
     state.sessions = model::session::Session::list(&store.base_dir);
@@ -129,7 +130,7 @@ fn run_single_process() -> Result<()> {
     let _ = disable_raw_mode();
 
     if let Err(e) = run_result {
-        let _ = writeln!(restore_stdout, "error: {}", e);
+        let _ = writeln!(restore_stdout, "error: {e}");
         let _ = restore_stdout.flush();
     }
 
@@ -262,7 +263,6 @@ fn apply_client_update(
     state.transcript_cache.messages = payload.messages.into_iter().map(|m| {
         app::state::rest::ChatMessageDisplay {
             role: match m.role.as_str() {
-                "User" => crate::dto::chat::message::Role::User,
                 "Assistant" => crate::dto::chat::message::Role::Assistant,
                 "System" => crate::dto::chat::message::Role::System,
                 "Tool" => crate::dto::chat::message::Role::Tool,
@@ -300,7 +300,6 @@ fn apply_client_update(
     state.misc.toasts = payload.toasts.into_iter().map(|t| {
         Toast {
             kind: match t.kind.as_str() {
-                "Info" => ToastKind::Info,
                 "Success" => ToastKind::Success,
                 "Warning" => ToastKind::Warning,
                 "Error" => ToastKind::Error,
@@ -350,7 +349,7 @@ fn run_daemon() -> Result<()> {
     let workspace_roots = vec![std::env::current_dir()?];
     let mut state = app::state::rest::AppStateRest::new(
         workspace_roots.clone(),
-        session_dir,
+        &session_dir,
         store.memory_dir,
     );
     state.sessions = model::session::Session::list(&store.base_dir);
@@ -479,7 +478,7 @@ fn run_attach(session_id: &str) -> Result<()> {
     std::fs::create_dir_all(&session_dir)?;
     let mut client_state = app::state::rest::AppStateRest::new(
         workspace_roots,
-        session_dir,
+        &session_dir,
         store.memory_dir,
     );
     client_state.session_id = session_id.to_string();