feat: add initial documentation for ecommerce project and system architecture

Signed-off-by: juliano.barbosa <julianomb@gmail.com>

templates/hld.md

@@ -0,0 +1,162 @@
+# {project name}
+
+## 1. Project Details
+- **Project Name**: {Project Name from BRD}  
+- **Document Version**: 1.0 
+
+## 2. Introduction
+
+### 2.1 Summary
+- {Short summary of the purpose derived from BRD.}
+
+### 2.2 Scope
+- {Short summary of the scope derived from BRD & Instructions.}  
+
+### 2.3 Project Stakeholders
+- {List of stakeholders from BRD, such as developers, QA, technical architects, etc.}
+
+
+## 3. Business Requirements Summary
+- {Provide a summary of the high-level business requirements from BRD.}  
+  - Example: "The system must allow users to register, log in, and reset passwords."
+
+
+## 4. Functional Requirements
+- {Extract functional requirements from BRD and populate the below grid.}
+
+|Requirement Id| Requirement |
+|--------------|-------------|
+|{Unique id for this requirement. ex: REQ_1}| {Actual requirment from BRD}|
+
+### 4.1 Use Cases
+- {Extract Use cases should be based on above identified functional requirements and populate below grid}
+
+| Use Case            | Description                                       | Acceptance Criteria                           | Constraints                                      |
+|---------------------|---------------------------------------------------|-----------------------------------------------|-------------------------------------------------|
+| {Use Case Name}     | {Description of the Use Case}                    | {Acceptance criteria for the use case}       | {Constraints applicable to the use case}       |
+
+### 4.2 Scenarios
+- {List all scenarios}
+
+## 5. System Overview
+
+### 5.1 System Context
+- {Description of the system's high-level context a  nd its place in the broader ecosystem.}
+
+### 5.2 System Goals and   Objectives
+- {System Goals and   Objectives}
+- **Primary Goals**:  
+  - Goal 1: 
+Description of goal.
+  - Goal 2: Description of goal.  
+- **Performance Objectives**:  
+  - {Expected system performance objectives.}
+
+
+## 6. Architecture Overview
+
+### 6.1 Architectural Style
+- {Description of the chosen architectural approach (e.g., Microservices, Monolithic, etc.)}
+
+### 6.2 Components Involved
+- {List of internal systems involved in this design.}
+
+### 6.3 High-Level Component Diagram
+- {As a software architect, create a mermaid component diagram based on provided Data Flow Diagram and aling that to   the requirement}
+
+### 6.4 Component Descriptions
+
+#### 6.4.1 {Comp  onent Name}
+- **Responsibility**: {Responsibilities of the component}  
+- **Interfaces**: {Interfaces provided or used by the component.}  
+- **Dependencies**: {Dependencies on other components or systems.}
+
+
+## 7. System Interactions
+
+### 7.1 External System Interactions
+- {Description of interactions with ex
+ternal systems or services.}
+
+### 7.2 Communication Protocols
+- {Details of communication mechanisms, protocols, and data exchange formats.}
+
+
+## 8. Performance Considerations
+
+### 8.1 Performance Requirements
+- {Expected response times, sca
+lability requirements, and concurrent user handling.}
+
+### 8.2 Performance Constraints
+- {List known performance limitations or bottlenecks.}
+
+
+## 9. Security Architecture
+
+### 9.1 Security Requirements
+- {Authentication mechanisms, authorization strategies, and dat
+a encryption approaches from BRD & Instructions.}
+
+### 9.2 Threat Mitigation
+- {Strategies for addressing potential security vulnerabilities.}
+
+
+## 10. Deployment Architecture
+
+### 10.1 Deployment Topology
+- {Describe deployment environments (Development, Stagin
+g, Production).}
+
+### 10.2 Infrastructure Requirements
+- {Hardware specifications, network configuration, and cloud/on-premise considerations.}
+
+
+## 11. Technology Stack
+
+### 11.1 Programming Languages
+- {List primary programming l
+anguages.}
+
+### 11.2 Frameworks and Libraries
+- {Enumerate key frameworks and libraries.}
+
+### 11.3 Databases
+- {Specify database technologies.}
+
+
+## 12. Constraints and Assumptions
+
+### 12.
+1 Technical Constraints
+- {List technical limitations or restrictions.}
+
+### 12.2 Business Constraints
+- {Describe business-related constraints.}
+
+
+## 13. Open Issues and Risks
+
+### 13.
+1 Known Risks
+- {Identify potential risks and mitigation strategies.}
+
+### 13.2 Unresolved Design Decisions
+- {List any pe  n
+ding design decisions.}
+
+
+## 14. Appendices
+
+    ### 14.1 Glossary
+- {Define    technical te----rms and acronyms.}
+
+### 1---4.2 References
+- {Any links fr    om BRD}  
+
+
+## 15. Revision    History
+
+| Version | Date       | Description   | Author      |
+|---------|------------|---------------|-------------|
+| {1.0}   | {Date}     | Initial Draft | {Author}    |