Initial commit: Tablet lending system with user-tablet many-to-many relationship

- Database schema: tablets, users, loans (junction table)
- CLI app: minimal_app.py
- Web apps: app.py (Flask), simple_app.py (http.server)
- Features: loan management, search, user loans view, project notes
- Git structure: CONTRIBUTING.md, .gitignore

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

templates/add_tablet.html

@@ -0,0 +1,30 @@
+{% extends "base.html" %}
+
+{% block content %}
+    <h2>Add New Tablet</h2>
+    <form method="POST" action="/add_tablet">
+        <div class="form-group">
+            <label for="brand">Brand:</label>
+            <input type="text" id="brand" name="brand" required>
+        </div>
+
+        <div class="form-group">
+            <label for="model">Model:</label>
+            <input type="text" id="model" name="model" required>
+        </div>
+
+        <div class="form-group">
+            <label for="serial_number">Serial Number:</label>
+            <input type="text" id="serial_number" name="serial_number" required>
+        </div>
+
+        <div class="form-group">
+            <label for="notes">Notes:</label>
+            <textarea id="notes" name="notes"></textarea>
+        </div>
+
+        <div class="form-group">
+            <button type="submit" class="btn">Add Tablet</button>
+        </div>
+    </form>
+{% endblock %}