fix: resolve compilation error and warnings in Rust backend (#95)

* fix: resolve compilation error and warnings in Rust backend

- Fix syntax error in directive.rs phase_replanning (bad merge created
  duplicate code blocks with broken `.await {` syntax)
- Remove unused imports: WorktreeError, DaemonReauthStatus, ratatui::prelude
- Prefix unused variables with underscore: claude_command, content, owner_id
- Suppress unused_assignments warning on final_exit_code
- Add #[allow(unused_imports)] for cfg(unix) CommandExt imports

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* WIP: heartbeat checkpoint

* fix: suppress remaining compiler warnings for clean build

- Add #[allow(dead_code)] for unused but intentionally kept functions
- Remove useless self-assignments in listen handler
- Fixes: truncate_string, checkout_commit, handle_get_worktree_diff,
  default_max_retries, STREAM_CHUNK_MS, listen(), MessageResponse.role

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

4 files changed, 4 insertions, 5 deletions

diff --git a/makima/src/server/handlers/listen.rs b/makima/src/server/handlers/listen.rs
index e1bc30e..7edcdfc 100644
--- a/makima/src/server/handlers/listen.rs
+++ b/makima/src/server/handlers/listen.rs
@@ -208,8 +208,7 @@ async fn handle_socket(socket: WebSocket, state: SharedState) {
                         audio_offset = 0.0;
                         finalized_segments.clear();
                         file_id = None;
-                        authenticated_owner_id = authenticated_owner_id; // Keep from above
-                        target_contract_id = target_contract_id; // Keep from above
+                        // authenticated_owner_id and target_contract_id are kept from above
 
                         // Reset models for new session
                         let mut sortformer = ml_models.sortformer.lock().await;
diff --git a/makima/src/server/handlers/mesh.rs b/makima/src/server/handlers/mesh.rs
index 1a5b9c1..d9d40d7 100644
--- a/makima/src/server/handlers/mesh.rs
+++ b/makima/src/server/handlers/mesh.rs
@@ -20,7 +20,7 @@ use crate::db::models::{
 use crate::db::repository::{self, RepositoryError};
 use crate::server::auth::Authenticated;
 use crate::server::messages::ApiError;
-use crate::server::state::{DaemonCommand, DaemonReauthStatus, SharedState, TaskUpdateNotification};
+use crate::server::state::{DaemonCommand, SharedState, TaskUpdateNotification};
 
 // =============================================================================
 // Authentication Types
diff --git a/makima/src/server/handlers/mesh_daemon.rs b/makima/src/server/handlers/mesh_daemon.rs
index e5f0a81..ed1b603 100644
--- a/makima/src/server/handlers/mesh_daemon.rs
+++ b/makima/src/server/handlers/mesh_daemon.rs
@@ -1627,7 +1627,7 @@ async fn handle_daemon_connection(socket: WebSocket, state: SharedState, auth_re
                                 );
 
                                 // Broadcast as task output with auth_required type so UI can display the login link
-                                let content = format!(
+                                let _content = format!(
                                     "🔐 Authentication required on daemon{}. Click to login: {}",
                                     hostname.as_ref().map(|h| format!(" ({})", h)).unwrap_or_default(),
                                     login_url
diff --git a/makima/src/server/handlers/mesh_supervisor.rs b/makima/src/server/handlers/mesh_supervisor.rs
index ebde52b..3adb850 100644
--- a/makima/src/server/handlers/mesh_supervisor.rs
+++ b/makima/src/server/handlers/mesh_supervisor.rs
@@ -1272,7 +1272,7 @@ pub async fn create_branch(
     headers: HeaderMap,
     Json(request): Json<CreateBranchRequest>,
 ) -> impl IntoResponse {
-    let (supervisor_id, owner_id) = match verify_supervisor_auth(&state, &headers, None).await {
+    let (supervisor_id, _owner_id) = match verify_supervisor_auth(&state, &headers, None).await {
         Ok(ids) => ids,
         Err(e) => return e.into_response(),
     };