Initial public commit

Daybook: a self-hosted, multi-user Django + DRF app where agents, scripts,
or people publish artifacts and each logged-in user browses their own
time-ordered, label-filterable feed.

This squashes prior local development history (kept privately on a separate
branch) into a single clean starting point for the public repository.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

templates/artifacts/login.html

@@ -0,0 +1,34 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>Log in — AgentFeed</title>
+  <link rel="stylesheet" href="/static/daybook.css">
+</head>
+<body>
+  <main class="login-page">
+    <form method="post" class="login-card">
+      {% csrf_token %}
+      <h1>AgentFeed</h1>
+      {% if form.non_field_errors %}
+        <p class="login-error">{{ form.non_field_errors|join:" " }}</p>
+      {% endif %}
+      <label>
+        <span>Username</span>
+        {{ form.username }}
+      </label>
+      <label>
+        <span>Password</span>
+        {{ form.password }}
+      </label>
+      <label class="login-remember">
+        {{ form.remember_me }}
+        <span>Remember me</span>
+      </label>
+      <button type="submit">Log in</button>
+      <input type="hidden" name="next" value="{{ next }}">
+    </form>
+  </main>
+</body>
+</html>