feat: init projet supervision — monitoring systeme Windows

Interface web Flask securisee pour surveiller CPU, RAM, disques
et processus (JVM, Nginx, Amadea Web 8 x64).
Alertes email SMTP configurables, seuils reglables, compilation
PyInstaller en .exe, installation service Windows via NSSM.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

templates/alerts.html

@@ -0,0 +1,60 @@
+{% extends "base.html" %}
+{% block title %}Supervision - Alertes{% endblock %}
+
+{% block content %}
+<div class="d-flex justify-content-between align-items-center mb-3">
+    <h4 class="mb-0"><i class="bi bi-bell"></i> Historique des alertes</h4>
+    {% if alerts %}
+    <form method="POST" action="{{ url_for('clear_alerts') }}">
+        <button type="submit" class="btn btn-sm btn-outline-danger"
+                onclick="return confirm('Effacer tout l\'historique ?')">
+            <i class="bi bi-trash"></i> Effacer l'historique
+        </button>
+    </form>
+    {% endif %}
+</div>
+
+{% if not alerts %}
+<div class="alert alert-info">
+    <i class="bi bi-info-circle"></i> Aucune alerte enregistree.
+</div>
+{% else %}
+<div class="card">
+    <div class="card-body p-0">
+        <table class="table table-hover mb-0">
+            <thead>
+                <tr>
+                    <th>Date</th>
+                    <th>Type</th>
+                    <th>Message</th>
+                    <th>Valeur</th>
+                    <th>Seuil</th>
+                </tr>
+            </thead>
+            <tbody>
+                {% for alert in alerts %}
+                <tr>
+                    <td class="text-nowrap">
+                        <small>{{ alert.timestamp[:19] | replace('T', ' ') }}</small>
+                    </td>
+                    <td>
+                        {% if alert.type == 'process_down' %}
+                        <span class="badge bg-danger">Processus</span>
+                        {% else %}
+                        <span class="badge bg-warning text-dark">Seuil</span>
+                        {% endif %}
+                    </td>
+                    <td>{{ alert.message }}</td>
+                    <td>{{ alert.value }}</td>
+                    <td>{{ alert.threshold }}</td>
+                </tr>
+                {% endfor %}
+            </tbody>
+        </table>
+    </div>
+</div>
+<div class="text-muted small mt-2">
+    {{ alerts | length }} alerte(s) — les 500 dernieres sont conservees.
+</div>
+{% endif %}
+{% endblock %}