Squashed commit of the following:

commit 1eeea9f83ad9230a5c1f7a75662770eaab0df837
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 21:15:41 2025 +0200

    Disable resuming of old time entries.

commit 3e3ec2f01cb7943622b819a19179388078ae1315
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 20:59:19 2025 +0200

    Refactor db migrations.

commit 15a51a569da36c6b7c9e01ab17b6fdbdee6ad994
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 19:58:04 2025 +0200

    Apply new style for Time Tracking view.

commit 77e5278b303e060d2b03853b06277f8aa567ae68
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 18:06:04 2025 +0200

    Allow direct registrations as a Company.

commit 188a8772757cbef374243d3a5f29e4440ddecabe
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 18:04:45 2025 +0200

    Add email invitation feature.

commit d9ebaa02aa01b518960a20dccdd5a327d82f30c6
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 17:12:32 2025 +0200

    Apply common style for Company, User, Team management pages.

commit 81149caf4d8fc6317e2ab1b4f022b32fc5aa6d22
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 16:44:32 2025 +0200

    Move export functions to own module.

commit 1a26e19338e73f8849c671471dd15cc3c1b1fe82
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 15:51:15 2025 +0200

    Split up models.py.

commit 61f1ccd10f721b0ff4dc1eccf30c7a1ee13f204d
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 12:05:28 2025 +0200

    Move utility function into own modules.

commit 84b341ed35e2c5387819a8b9f9d41eca900ae79f
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 11:44:24 2025 +0200

    Refactor auth functions use.

commit 923e311e3da5b26d85845c2832b73b7b17c48adb
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 11:35:52 2025 +0200

    Refactor route nameing and fix bugs along the way.

commit f0a5c4419c340e62a2615c60b2a9de28204d2995
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 10:34:33 2025 +0200

    Fix URL endpoints in announcement template.

commit b74d74542a1c8dc350749e4788a9464d067a88b5
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 09:25:53 2025 +0200

    Move announcements to own module.

commit 9563a28021ac46c82c04fe4649b394dbf96f92c7
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 09:16:30 2025 +0200

    Combine Company view and edit templates.

commit 6687c373e681d54e4deab6b2582fed5cea9aadf6
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 08:17:42 2025 +0200

    Move Users, Company and System Administration to own modules.

commit 8b7894a2e3eb84bb059f546648b6b9536fea724e
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 07:40:57 2025 +0200

    Move Teams and Projects to own modules.

commit d11bf059d99839ecf1f5d7020b8c8c8a2454c00b
Author: Jens Luedicke <jens@luedicke.me>
Date:   Mon Jul 7 07:09:33 2025 +0200

    Move Tasks and Sprints to own modules.

startup_postgres.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+set -e
+
+echo "Starting TimeTrack application (PostgreSQL-only mode)..."
+
+# Wait for PostgreSQL to be ready
+echo "Waiting for PostgreSQL to be ready..."
+while ! pg_isready -h db -p 5432 -U "$POSTGRES_USER" > /dev/null 2>&1; do
+    echo "PostgreSQL is not ready yet. Waiting..."
+    sleep 2
+done
+echo "PostgreSQL is ready!"
+
+# Initialize database tables if they don't exist
+echo "Ensuring database tables exist..."
+python -c "
+from app import app, db
+with app.app_context():
+    db.create_all()
+    print('Database tables created/verified')
+"
+
+# Run PostgreSQL-only migrations
+echo ""
+echo "=== Running PostgreSQL Migrations ==="
+if [ -f "migrations/run_postgres_migrations.py" ]; then
+    echo "Applying PostgreSQL schema updates..."
+    python migrations/run_postgres_migrations.py
+    if [ $? -ne 0 ]; then
+        echo "⚠️  Some migrations failed, but continuing..."
+    fi
+else
+    echo "PostgreSQL migration runner not found, skipping..."
+fi
+
+# Start the Flask application with gunicorn
+echo ""
+echo "=== Starting Application ==="
+echo "Starting Flask application with gunicorn..."
+exec gunicorn --bind 0.0.0.0:5000 --workers 4 --threads 2 --timeout 30 app:app