Phase 4: user model

.claude/settings.local.json

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+{
+  "permissions": {
+    "allow": [
+      "Bash(git add *)",
+      "Bash(git commit *)"
+    ]
+  }
+}

app/__init__.py

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+from flask import Flask
+from flask_sqlalchemy import SQLAlchemy
+from flask_login import LoginManager
+from flask_migrate import Migrate
+from config import Config
+
+db = SQLAlchemy()
+login_manager = LoginManager()
+migrate = Migrate()
+
+def create_app(config_class=Config):
+    app = Flask(__name__)
+    app.config.from_object(config_class)
+
+    db.init_app(app)
+    login_manager.init_app(app)
+    migrate.init_app(app, db)
+
+    login_manager.login_view = "auth.login"
+    login_manager.login_message_category = "info"
+
+    from app.auth.routes import auth_bp
+    from app.main.routes import main_bp
+    app.register_blueprint(auth_bp, url_prefix="/auth")
+    app.register_blueprint(main_bp)
+
+    from app import models  # noqa: F401 — registers models with SQLAlchemy
+
+    return app

app/models.py

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+from datetime import datetime
+from flask_login import UserMixin
+from werkzeug.security import generate_password_hash, check_password_hash
+from app import db, login_manager
+
+class User(UserMixin, db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    username = db.Column(db.String(64), unique=True, nullable=False)
+    email = db.Column(db.String(120), unique=True, nullable=False)
+    password_hash = db.Column(db.String(255), nullable=False)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+
+    def set_password(self, password):
+        self.password_hash = generate_password_hash(password)
+
+    def check_password(self, password):
+        return check_password_hash(self.password_hash, password)
+
+    def __repr__(self):
+        return f"<User {self.username}>"
+
+@login_manager.user_loader
+def load_user(user_id):
+    return User.query.get(int(user_id))

config.py

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+import os
+from dotenv import load_dotenv
+
+load_dotenv()
+
+class Config:
+    SECRET_KEY = os.environ.get("SECRET_KEY", "dev-key-not-safe")
+    SQLALCHEMY_DATABASE_URI = os.environ.get("DATABASE_URL", "sqlite:///app.db")
+    SQLALCHEMY_TRACK_MODIFICATIONS = False

run.py

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+from app import create_app
+
+app = create_app()
+
+if __name__ == "__main__":
+    app.run()