Refactor .gitignore; add patterns for SQLite database files and improve ignored file management

Enhance app initialization; set secret key from environment variable for better security practices

Update work_log model import; change User import path for improved module structure

Refactor routes; add new inventory item creation route and enhance settings handling with JSON form state

Improve ComboBoxWidget; add handleComboAdd function for better option management and integrate with render_combobox macro

Revamp settings template; implement form state management and improve modal functionality for room creation

Add error template; create a new error handling page for better user feedback

__init__.py

@@ -1,6 +1,7 @@
 from flask import Flask
 from flask_sqlalchemy import SQLAlchemy
 import logging
+import os
 
 db = SQLAlchemy()
 
@@ -14,6 +15,7 @@ if not logger.handlers:
 def create_app():
     from config import Config
     app = Flask(__name__)
+    app.secret_key = os.getenv('SECRET_KEY', 'dev-secret-key-unsafe')  # You know what to do for prod
     app.config.from_object(Config)
 
     db.init_app(app)