feat(story-1.1): implement walking skeleton with Go Chi and Docker Compose

internal/domain/doc.go

@@ -0,0 +1,3 @@
+// Package domain contains business logic entities and interfaces.
+// This package defines the core types used throughout the application.
+package domain

internal/handler/doc.go

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+// Package handler contains HTTP handlers for the REST API.
+// Handlers are responsible for request/response translation only.
+// No business logic should be placed here.
+package handler

internal/repository/doc.go

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+// Package repository contains database access implementations.
+// Repositories use raw SQL with pgx - No ORM.
+package repository