Fix Rust lifetime issue, add gitignore for build artifacts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -17,3 +17,10 @@ kjvstudy_org/verse_collections.py
 *.backup
 *.json
 .coverage
+
+# Desktop app build artifacts
+sidecar/
+*.spec
+src-tauri/target/
+src-tauri/Cargo.lock
+src-tauri/gen/

src-tauri/.gitignore

@@ -0,0 +1,6 @@
+# Rust build artifacts
+target/
+Cargo.lock
+
+# Generated by Tauri during build
+gen/

src-tauri/src/main.rs

@@ -140,7 +140,7 @@ fn main() {
                     println!("Shutting down server...");
                     let _ = child.kill();
                     let _ = child.wait();
-                }
+                };
             }
         });
 }