Update .gitignore with comprehensive Rust project exclusions

.gitignore

@@ -19,6 +19,12 @@ Cargo.lock
 .idea/
 *.iml
 
+# IDE - Cursor
+.cursor/
+
+# IDE - Windsurf
+.windsurf/
+
 # macOS
 .DS_Store
 
@@ -27,3 +33,19 @@ Cargo.lock
 
 # Documentation build
 docs/_build/
+
+# BMAD generated output (large files)
+_bmad-output/
+
+# Environment files
+.env
+.env.local
+
+# Database files
+*.db
+*.sqlite
+*.sqlite3
+
+# Log files
+*.log
+logs/