docs: ensure newline before lists across docs for MkDocs rendering

docs/content/stories/epic0/0.3-structured-logging-system.md

@@ -19,6 +19,7 @@ This story implements a complete logging system using Zap that provides structur
 
 ### 1. Logger Interface (`pkg/logger/logger.go`)
 Define `Logger` interface with:
+
 - `Debug(msg string, fields ...Field)` - Debug level logging
 - `Info(msg string, fields ...Field)` - Info level logging
 - `Warn(msg string, fields ...Field)` - Warning level logging
@@ -30,6 +31,7 @@ Define `Logger` interface with:
 
 ### 2. Zap Implementation (`internal/logger/zap_logger.go`)
 Implement `Logger` interface using Zap:
+
 - Structured JSON logging for production mode
 - Human-readable console logging for development mode
 - Configurable log levels (debug, info, warn, error)
@@ -40,6 +42,7 @@ Implement `Logger` interface using Zap:
 
 ### 3. Request ID Middleware (`internal/logger/middleware.go`)
 Gin middleware for request correlation:
+
 - Generate unique request ID per HTTP request
 - Add request ID to request context
 - Add request ID to all logs within request context