Initial commit: boarding pass to AirTrail pipeline

Photograph/screenshot a boarding pass, decode its BCBP barcode (PDF417/
Aztec/QR/DataMatrix), fetch the historical flight track from FlightAware
the day after the flight, stage it for review, and write it into AirTrail
via its REST API on approval. ntfy notifications carry signed
Approve/Deny/Investigate actions.

templates/review_list.html

@@ -0,0 +1,29 @@
+{% extends "base.html" %}
+{% block title %}Review — Boarding Pass{% endblock %}
+{% block content %}
+<h1>Flights</h1>
+
+<div class="tabs">
+  <a class="tab {{ 'tab-active' if not active_status }}" href="{{ url_for('review.list_flights') }}">Needs review</a>
+  {% for s in statuses %}
+  <a class="tab {{ 'tab-active' if active_status == s }}" href="{{ url_for('review.list_flights', status=s) }}">{{ s.replace('_', ' ') }}</a>
+  {% endfor %}
+  <a class="tab {{ 'tab-active' if active_status == 'all' }}" href="{{ url_for('review.list_flights', status='all') }}">All</a>
+</div>
+
+{% if not flights %}
+<p class="muted">No flights here.</p>
+{% else %}
+<div class="flight-list">
+  {% for f in flights %}
+  <a href="{{ url_for('review.detail', flight_id=f.id) }}" class="card flight-row">
+    <span class="badge badge-{{ f.status }}">{{ f.status.replace('_', ' ') }}</span>
+    <span class="flight-route">{{ f.from_iata or '?' }} &rarr; {{ f.to_iata or '?' }}</span>
+    <span class="flight-number">{{ f.operating_carrier_iata or '' }}{{ f.flight_number or '' }}</span>
+    <span class="flight-date muted">{{ f.flight_date or 'unknown date' }}</span>
+    <span class="muted">{{ f.passenger_name or '' }}</span>
+  </a>
+  {% endfor %}
+</div>
+{% endif %}
+{% endblock %}