Update project metadata, upgrade dependencies and add CI workflow

.claude/settings.json

@@ -0,0 +1,5 @@
+{
+  "enabledPlugins": {
+    "mongodb@claude-plugins-official": true
+  }
+}

.devcontainer/devcontainer.json

@@ -0,0 +1,29 @@
+{
+  "name": "FARM Stack To-Do App",
+  "dockerComposeFile": "docker-compose.yml",
+  "service": "app",
+  "workspaceFolder": "/workspaces/FARM-Intro",
+  "forwardPorts": [8000, 3000, 27017],
+  "portsAttributes": {
+    "8000": { "label": "FastAPI backend", "onAutoForward": "notify" },
+    "3000": { "label": "React frontend", "onAutoForward": "openBrowser" },
+    "27017": { "label": "MongoDB", "onAutoForward": "silent" }
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "mongodb.mongodb-vscode",
+        "ms-python.python",
+        "ms-python.vscode-pylance",
+        "dbaeumer.vscode-eslint",
+        "esbenp.prettier-vscode"
+      ]
+    }
+  },
+  "remoteEnv": {
+    "DB_URL": "mongodb://localhost:27017/",
+    "DB_NAME": "farm_intro"
+  },
+  "postCreateCommand": "pip install -r backend/requirements.txt && cd frontend && npm install",
+  "postStartCommand": "echo 'Backend: DB_URL=mongodb://localhost:27017/ DB_NAME=farm_intro uvicorn main:app --reload (from backend/)'"
+}

.devcontainer/docker-compose.yml

@@ -0,0 +1,27 @@
+services:
+  mongodb:
+    image: mongodb/mongodb-atlas-local:8.0.3-20250506T093411Z
+    ports:
+      - "27017:27017"
+    volumes:
+      - mongodb-data:/data/db
+      - mongodb-config:/data/configdb
+    healthcheck:
+      test: mongosh --eval "db.adminCommand({ ping: 1 })"
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  app:
+    image: mcr.microsoft.com/devcontainers/python:1-3.13-bookworm
+    network_mode: service:mongodb
+    volumes:
+      - ..:/workspaces/FARM-Intro:cached
+    command: sleep infinity
+    depends_on:
+      mongodb:
+        condition: service_healthy
+
+volumes:
+  mongodb-data:
+  mongodb-config:

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
       mongodb:
         image: mongo:latest
         options: >-
-          --health-cmd mongosh
+          --health-cmd "mongosh --eval 'db.adminCommand({ ping: 1 })'"
           --health-interval 10s
           --health-timeout 5s
           --health-retries 5
@@ -30,12 +30,12 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.12"
+          python-version: "3.13"
 
       - name: Set up Node
         uses: actions/setup-node@v4
         with:
-          node-version: "20"
+          node-version: "22"
 
       - name: Repo smoke checks
         shell: bash
@@ -114,7 +114,7 @@ jobs:
           fi
 
       - name: Install integration test dependencies
-        run: pip install pytest pymongo
+        run: pip install pytest pymongo pydantic-settings
 
       - name: Run integration tests
         env:

AGENTS.md

@@ -0,0 +1,85 @@
+# AGENTS.md — FARM Stack To-Do App
+
+Agent guide for AI coding assistants working in this repository.
+
+## Build and Test Commands
+
+```bash
+# Backend — install and start
+cd backend
+pip install -r requirements.txt
+DB_URL="mongodb://localhost:27017/" DB_NAME="farm_intro" uvicorn main:app --reload
+
+# Frontend — install and start
+cd frontend
+npm install
+npm start
+
+# Tests (no MongoDB needed)
+python tests/test_runtime.py
+
+# Integration tests (MongoDB required)
+MONGODB_URI="mongodb://localhost:27017/" pytest tests/test_integration.py -v
+
+# Regenerate backend lockfile
+cd backend && pip-compile --upgrade requirements.in
+```
+
+## Project Structure
+
+```
+FARM-Intro/
+├── backend/
+│   ├── main.py                  # FastAPI app, lifespan (DB connect/close), appName
+│   ├── config/__init__.py       # pydantic-settings: DB_URL, DB_NAME, HOST, PORT
+│   ├── apps/todo/
+│   │   ├── models.py            # TaskModel and UpdateTaskModel (pydantic v2)
+│   │   └── routers.py           # CRUD handlers for /task/ prefix
+│   ├── requirements.in          # Direct dependencies (source of truth)
+│   └── requirements.txt         # Pinned lockfile — regenerate with pip-compile
+├── frontend/
+│   ├── src/App.js               # React 18 task list; polls /task/ every 1 s
+│   └── package.json             # React 18, antd 5, react-scripts 5
+├── tests/
+│   ├── test_runtime.py          # Offline unit test; stubs FastAPI and pymongo
+│   └── test_integration.py      # Live CRUD tests against MongoDB
+├── .github/workflows/ci.yml     # CI: Python 3.13, Node 22, mongo:latest service
+├── .devcontainer/               # Codespaces/Dev Container with Atlas Local
+├── EDD.md                       # MongoDB data model specification
+└── README.md
+```
+
+## Environment Variables
+
+| Variable    | Required | Default  | Description                       |
+|-------------|----------|----------|-----------------------------------|
+| `DB_URL`    | Yes      | —        | MongoDB connection string          |
+| `DB_NAME`   | Yes      | —        | Database name                     |
+| `HOST`      | No       | `0.0.0.0`| uvicorn bind address              |
+| `PORT`      | No       | `8000`   | uvicorn port                      |
+| `DEBUG_MODE`| No       | `false`  | Enable uvicorn auto-reload        |
+
+## Key Conventions
+
+- **Pydantic v2**: use `model_config = ConfigDict(...)` and `json_schema_extra`; never `class Config`
+- **Lifespan**: DB init/teardown lives in the `@asynccontextmanager lifespan(app)` function in `main.py`; never use `@app.on_event`
+- **appName**: the pymongo client is always created with `appName="farm-intro-api"`
+- **No seed script**: tasks are created by users; the integration tests create and clean up their own data
+- **Collection name**: `tasks` in the database specified by `DB_NAME`
+- **Task `_id`**: UUID string (not ObjectId) — see EDD.md
+
+## When To Use EDD.md
+
+Use [EDD.md](./EDD.md) as the source of truth for the MongoDB data model in this repository.
+
+Consult [EDD.md](./EDD.md) before making changes that touch:
+
+- MongoDB collections, document structure, or field names
+- FastAPI routes that read or write database records
+- Validation, form fields, API payloads, or UI that depend on persisted data
+- Schema documentation, Mermaid diagrams, or entity modelling discussions
+
+## MongoDB Skills
+
+Use the official MongoDB agent skills from https://github.com/mongodb/agent-skills
+whenever the task is MongoDB-specific and a matching skill exists.

EDD.md

@@ -0,0 +1,67 @@
+# EDD — Entity Document Diagram
+
+MongoDB data model for the FARM Stack To-Do App.
+
+## Database
+
+| Setting       | Value        |
+|---------------|--------------|
+| Database name | `farm_intro` (set via `DB_NAME` env var) |
+| Driver        | pymongo 4.x `AsyncMongoClient` |
+| appName       | `farm-intro-api` |
+
+---
+
+## Collections
+
+### `tasks`
+
+Stores to-do tasks created by users.
+
+#### Fields
+
+| Field       | BSON type | Required | Notes                                     |
+|-------------|-----------|----------|-------------------------------------------|
+| `_id`       | String    | Yes      | UUID v4 string (not ObjectId)             |
+| `name`      | String    | Yes      | Display label for the task                |
+| `completed` | Boolean   | Yes      | `false` on creation; `true` when done     |
+
+#### Example Document
+
+```json
+{
+  "_id": "00010203-0405-0607-0809-0a0b0c0d0e0f",
+  "name": "Buy groceries",
+  "completed": false
+}
+```
+
+#### Indexes
+
+| Index      | Fields  | Type    | Notes                    |
+|------------|---------|---------|--------------------------|
+| `_id_`     | `_id`   | Default | Created automatically    |
+
+No additional indexes are defined. Add an index on `completed` if you add filtering by status.
+
+---
+
+## ER Diagram
+
+```mermaid
+erDiagram
+    TASKS {
+        string _id PK "UUID v4"
+        string name
+        boolean completed
+    }
+```
+
+---
+
+## Notes
+
+- `_id` is a UUID string, not a MongoDB ObjectId. This is intentional so the frontend can use the ID directly without BSON serialisation.
+- The `completed` field defaults to `false` in the Pydantic model; callers can omit it on creation.
+- Deleting a task is a hard delete; there is no soft-delete or archive.
+- The integration tests (`tests/test_integration.py`) create and drop a separate `farm_intro_integration_test` database and do not affect production data.