ci(cli): add GitHub Actions workflow

.github/workflows/cli.yml

@@ -0,0 +1,52 @@
+name: cli
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "cli/**"
+      - ".github/workflows/cli.yml"
+  pull_request:
+    paths:
+      - "cli/**"
+      - ".github/workflows/cli.yml"
+
+# Cancel in-progress runs on the same PR when a new push arrives — saves runner minutes.
+concurrency:
+  group: cli-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  quality:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.12", "3.14"]
+
+    defaults:
+      run:
+        working-directory: cli
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: pip
+          cache-dependency-path: cli/pyproject.toml
+
+      - name: Install dependencies
+        run: pip install -e ".[dev]"
+
+      - name: Ruff (lint + import order)
+        run: ruff check src tests
+
+      - name: Mypy (type check)
+        run: mypy src
+
+      - name: Pytest (unit tests)
+        run: pytest

cli/README.md

@@ -1,5 +1,7 @@
 # TaskFlow CLI
 
+[![cli](https://github.com/el-amin-dev/taskflow/actions/workflows/cli.yml/badge.svg)](https://github.com/el-amin-dev/taskflow/actions/workflows/cli.yml)
+
 Command-line client for [TaskFlow](https://github.com/el-amin-dev/taskflow).
 Built with Typer + httpx. Single-use refresh tokens with file-lock theft
 protection, atomic 0600 credential storage, scriptable exit codes,