Add contributing info

CONTRIBUTE.md

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+# Contributing Guidelines
+
+Thank you for contributing to our project! Please adhere to the following guidelines to maintain code quality and consistency across the repository.
+
+---
+
+## Commit and Branch Requirements
+
+### Branches
+- **`main` branch**:
+  - Contains production-ready code. No direct commits are allowed here.
+- **`feature/*` sub-branches**:
+  - Used for developing new features.
+  - Must include the issue ID and a brief title.
+  - Example: `feature/100200_add-new-feature`.
+- **`bugfix/*` sub-branches**:
+  - Used for fixing bugs.
+  - Must include the issue ID and a brief title.
+  - Example: `bugfix/20101_fix-something`.
+
+---
+
+### Commits
+- **Multiline commits are accepted.**
+- The **first line** of the commit must:
+  - Contain the issue ID.
+  - Specify the type: `[FEATURE]` or `[BUG]`.
+  - Include a short, descriptive title.
+  - Be followed by a line break.
+- Subsequent lines should:
+  - Use bullet points (`-`) to briefly describe the changes.
+
+#### **Commit Example:**
+```
+480100: [FEATURE] Add new feature API
+
+- do this
+- do that
+```
+
+---
+
+## Pull Requests
+- **Required Reviewer**:
+  - All pull requests must include `@ownerofglory` as a required reviewer.
+- **Optional Reviewers**:
+  - One or more optional reviewers can be added as needed.
+- **Pipeline**:
+  - All pull requests must pass the pipeline successfully.
+
+---
+
+## Definition of 'Done' (DoD)
+
+### **Code Quality and Functionality**
+- Code changes must:
+  - Be thoroughly reviewed and free of new bugs.
+  - Compile and build without errors.
+  - Align with the project's design and architecture.
+
+### **Testing**
+- Code changes must:
+  - Be covered by unit tests.
+  - Pass all unit tests (green status).
+
+### **Documentation**
+- Relevant documentation must:
+  - Be updated to reflect any changes in the codebase.
+
+---
+
+By following these guidelines, you help us maintain a high-quality codebase and streamline the development process. Thank you for your cooperation and contributions!