new file: .env.example

new file:   .gitignore
	new file:   Dockerfile
	new file:   README.md
	new file:   app.py
	new file:   auth.py
	new file:   config.py
	new file:   db.py
	new file:   db_helpers.py
	new file:   docker-compose.yml
	new file:   requirements.txt
	new file:   routes/__init__.py
	new file:   routes/admin_routes.py
	new file:   routes/auth_routes.py
	new file:   routes/journal_routes.py
	new file:   static/css/style.css
	new file:   static/js/main.js
	new file:   templates/admin/dashboard.html
	new file:   templates/admin/users.html
	new file:   templates/base.html
	new file:   templates/day.html
	new file:   templates/future.html
	new file:   templates/index.html
	new file:   templates/login.html
	new file:   templates/week.html

db_helpers.py

@@ -0,0 +1,41 @@
+r"""Gemeinsame DB-Zugriffe (Benutzer + Admin-Bootstrap)."""
+from db import get_connection
+from config import Config
+from auth import hash_password
+
+
+def get_user_by_username(username: str) -> dict | None:
+    with get_connection() as conn:
+        with conn.cursor() as cur:
+            cur.execute("SELECT * FROM users WHERE username = %s", (username,))
+            return cur.fetchone()
+
+
+def get_user_by_id(user_id: int) -> dict | None:
+    with get_connection() as conn:
+        with conn.cursor() as cur:
+            cur.execute("SELECT * FROM users WHERE id = %s", (user_id,))
+            return cur.fetchone()
+
+
+def create_user(username: str, password: str, email: str = "", is_admin: bool = False) -> None:
+    salt, password_hash = hash_password(password)
+    with get_connection() as conn:
+        with conn.cursor() as cur:
+            cur.execute(
+                "INSERT INTO users (username, email, salt, password_hash, is_admin) "
+                "VALUES (%s, %s, %s, %s, %s)",
+                (username, email, salt, password_hash, 1 if is_admin else 0),
+            )
+
+
+def ensure_admin(app):
+    """Legt beim ersten Start den Admin aus den Env-Variablen an, falls keiner existiert."""
+    with app.app_context():
+        with get_connection() as conn:
+            with conn.cursor() as cur:
+                cur.execute("SELECT COUNT(*) AS c FROM users WHERE is_admin = 1")
+                count = cur.fetchone()["c"]
+        if count == 0:
+            create_user(Config.ADMIN_USERNAME, Config.ADMIN_PASSWORD, is_admin=True)
+            print(f"Admin-Benutzer '{Config.ADMIN_USERNAME}' angelegt.")