Add templates

src/docgen/templates/endpoint.html.jinja2

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+<div class="endpoint-header" onclick="toggleEndpoint(this)">
+    <div class="endpoint-method-badge" style="background-color: {{ endpoint.get_method_color() }}">
+        {{ endpoint.method.value }}
+    </div>
+    <div class="endpoint-path">
+        <code>{{ endpoint.path }}</code>
+    </div>
+    <div class="endpoint-summary">
+        {{ endpoint.summary or endpoint.description or '' }}
+    </div>
+    <div class="expand-icon">▼</div>
+</div>
+
+<div class="endpoint-details">
+    {% if endpoint.description %}
+    <div class="endpoint-description">
+        <h4>Description</h4>
+        <p>{{ endpoint.description }}</p>
+    </div>
+    {% endif %}
+    
+    {% if endpoint.parameters %}
+    <div class="parameters-section">
+        <h4>Parameters</h4>
+        <table class="parameters-table">
+            <thead>
+                <tr>
+                    <th>Name</th>
+                    <th>Location</th>
+                    <th>Type</th>
+                    <th>Required</th>
+                    <th>Description</th>
+                </tr>
+            </thead>
+            <tbody>
+                {% for param in endpoint.parameters %}
+                <tr>
+                    <td><code>{{ param.name }}</code></td>
+                    <td><span class="param-location">{{ param.location.value }}</span></td>
+                    <td><code class="param-type">{{ param.type }}</code></td>
+                    <td>{{ 'Yes' if param.required else 'No' }}</td>
+                    <td>{{ param.description }}</td>
+                </tr>
+                {% endfor %}
+            </tbody>
+        </table>
+    </div>
+    {% endif %}
+    
+    {% if endpoint.responses %}
+    <div class="responses-section">
+        <h4>Responses</h4>
+        <div class="responses-list">
+            {% for response in endpoint.responses %}
+            <div class="response-item">
+                <span class="response-status response-status-{{ (response.status_code // 100) * 100 }}xx">
+                    {{ response.status_code }}
+                </span>
+                <span class="response-description">{{ response.description }}</span>
+            </div>
+            {% endfor %}
+        </div>
+    </div>
+    {% endif %}
+    
+    <div class="try-it-section">
+        <h4>Try it out</h4>
+        <div class="curl-generator">
+            <button class="generate-curl-btn" onclick="generateCurl(event, '{{ endpoint.method.value }}', '{{ endpoint.path }}')">
+                Generate cURL
+            </button>
+            <pre class="curl-output"><code></code></pre>
+            <button class="copy-curl-btn" onclick="copyCurl(event)" style="display: none;">
+                Copy
+            </button>
+        </div>
+    </div>
+    
+    {% if endpoint.file_path %}
+    <div class="source-location">
+        <small>Defined in: {{ endpoint.file_path }}{% if endpoint.line_number %}:{{ endpoint.line_number }}{% endif %}</small>
+    </div>
+    {% endif %}
+</div>