feat: add GitHub badges and CI/CD workflow

- Add professional badges to README (Python, License, Black, FastAPI, Docker, CI)
- Create GitHub Actions workflow for continuous integration
- Test across Python 3.9, 3.10, 3.11
- Include linting (ruff), formatting (black), type checking (mypy)
- Add test coverage reporting with Codecov
- Include Docker image build validation

Author: hah23255

.github/workflows/ci.yml

@@ -0,0 +1,69 @@
+name: CI
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.9', '3.10', '3.11']
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+        pip install pytest pytest-cov pytest-asyncio
+
+    - name: Lint with ruff
+      run: |
+        pip install ruff
+        ruff check src/ tests/
+
+    - name: Format check with black
+      run: |
+        pip install black
+        black --check src/ tests/
+
+    - name: Type check with mypy
+      run: |
+        pip install mypy
+        mypy src/ || true
+
+    - name: Run tests
+      run: |
+        pytest tests/ -v --cov=src --cov-report=xml --cov-report=term
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        file: ./coverage.xml
+        flags: unittests
+        name: codecov-umbrella
+        fail_ci_if_error: false
+
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Build Docker image
+      run: |
+        docker build -t aec-rag-system:test .
+
+    - name: Test Docker image
+      run: |
+        docker run --rm aec-rag-system:test python --version

README.md

@@ -1,11 +1,11 @@
 # AEC Design Management RAG System
 
-[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
-[![Python 3.9+](https://img.shields.io/badge/python-3.9+-blue.svg)](https://www.python.org/downloads/)
+[![Python](https://img.shields.io/badge/python-3.9+-blue.svg)](https://www.python.org/downloads/)
+[![License](https://img.shields.io/badge/license-MIT-green.svg)](LICENSE)
 [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
-[![FastAPI](https://img.shields.io/badge/FastAPI-0.100+-00a393.svg)](https://fastapi.tiangolo.com)
-[![Docker](https://img.shields.io/badge/Docker-Ready-2496ED.svg)](https://www.docker.com/)
-[![Status](https://img.shields.io/badge/Status-Development-orange.svg)]()
+[![FastAPI](https://img.shields.io/badge/FastAPI-0.109.0-009688.svg)](https://fastapi.tiangolo.com)
+[![Docker](https://img.shields.io/badge/docker-ready-blue.svg)](https://www.docker.com/)
+[![CI](https://github.com/hah23255/aec-rag-system/workflows/CI/badge.svg)](https://github.com/hah23255/aec-rag-system/actions)
 
 A production-grade Retrieval-Augmented Generation (RAG) system for Architecture, Engineering, and Construction (AEC) design management, powered by GraphRAG and local LLMs.