fix: use absolute paths for database to ensure persistence

Critical bug fix: Path(__file__).parent.parent returns a relative path,
causing the database to be created in different locations depending on
the working directory. This caused data loss on container restarts.

Changes:
- Add .resolve() to BASE_DIR in src/config.py and migrations/env.py
- Fix admin dashboard showing 0 for participant count (was hardcoded)
- Fix exchange detail page to show actual participant list
- Add startup diagnostics to entrypoint.sh for troubleshooting

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

entrypoint.sh

@@ -4,6 +4,22 @@ set -e  # Exit on any error
 # Ensure data directory exists
 mkdir -p /app/data
 
+echo "=== Sneaky Klaus Container Startup ==="
+echo "Data directory: /app/data"
+echo "Database path: /app/data/sneaky-klaus.db"
+
+# Check if database exists
+if [ -f /app/data/sneaky-klaus.db ]; then
+    echo "Existing database found ($(ls -lh /app/data/sneaky-klaus.db | awk '{print $5}'))"
+else
+    echo "No existing database - will be created by migrations"
+fi
+
+# List contents of data directory
+echo "Data directory contents:"
+ls -la /app/data/ || echo "(empty)"
+
+echo ""
 echo "Running database migrations..."
 if uv run alembic upgrade head; then
     echo "Database migrations completed successfully"
@@ -13,5 +29,6 @@ else
     exit 1
 fi
 
+echo ""
 echo "Starting application server..."
 exec gunicorn --bind 0.0.0.0:8000 --workers 2 --threads 4 main:app

migrations/env.py

@@ -24,7 +24,8 @@ if config.config_file_name is not None:
 # Create minimal Flask app for migrations (without session initialization)
 # This avoids Flask-Session trying to create tables before migrations run
 app = Flask(__name__)
-BASE_DIR = Path(__file__).parent.parent
+# Use resolve() to ensure absolute paths - critical for database persistence
+BASE_DIR = Path(__file__).parent.parent.resolve()
 DATA_DIR = BASE_DIR / "data"
 DATA_DIR.mkdir(parents=True, exist_ok=True)
 

src/config.py

@@ -12,8 +12,8 @@ from pathlib import Path
 class Config:
     """Base configuration class with common settings."""
 
-    # Base paths
-    BASE_DIR = Path(__file__).parent.parent
+    # Base paths - use resolve() to ensure absolute paths
+    BASE_DIR = Path(__file__).parent.parent.resolve()
     DATA_DIR = BASE_DIR / "data"
 
     # Security

src/templates/admin/dashboard.html

@@ -51,7 +51,7 @@
             <tr>
                 <td>{{ exchange.name }}</td>
                 <td><mark>{{ exchange.state }}</mark></td>
-                <td>0 / {{ exchange.max_participants }}</td>
+                <td>{{ exchange.participants|selectattr('withdrawn_at', 'none')|list|length }} / {{ exchange.max_participants }}</td>
                 <td>{{ exchange.exchange_date.strftime('%Y-%m-%d') }}</td>
                 <td>
                     <a href="{{ url_for('admin.view_exchange', exchange_id=exchange.id) }}">View</a>

src/templates/admin/exchange_detail.html

@@ -37,8 +37,30 @@
         </div>
 
         <div class="detail-section">
-            <h2>Participants</h2>
+            <h2>Participants ({{ exchange.participants|selectattr('withdrawn_at', 'none')|list|length }} / {{ exchange.max_participants }})</h2>
+            {% set active_participants = exchange.participants|selectattr('withdrawn_at', 'none')|list %}
+            {% if active_participants %}
+            <table>
+                <thead>
+                    <tr>
+                        <th>Name</th>
+                        <th>Email</th>
+                        <th>Registered</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    {% for participant in active_participants|sort(attribute='name') %}
+                    <tr>
+                        <td>{{ participant.name }}</td>
+                        <td>{{ participant.email }}</td>
+                        <td>{{ participant.created_at.strftime('%Y-%m-%d %H:%M') }}</td>
+                    </tr>
+                    {% endfor %}
+                </tbody>
+            </table>
+            {% else %}
             <p>No participants yet.</p>
+            {% endif %}
         </div>
 
         <div class="actions">