initial commit — cassandra v0.1

Containerised macro-strategy dashboard: 4-panel web UI (indicators,
portfolio, flash news, AI strategic log), MariaDB store, hourly
ingestion jobs, OpenRouter-backed AI analysis.

Ports the four prototype scripts in the parent dir (market_pulse,
flash_news, trading212, strategic_log) into async services backed by a
persistent DB and served via FastAPI + Jinja2 + HTMX. APScheduler runs
as a separate compose service for crash-safety and easier restarts.

Portfolio composition + position names come live from Trading 212;
news per-ticker headlines reuse those names. Tone (NOVICE/INTERMEDIATE/
PRO) and analysis style (DRY/SPECULATIVE) are env-configurable and
stored on each log row so historical entries show what produced them.

Default model is deepseek/deepseek-v4-flash (overridable via env).
Light/dark theme toggle, sans-serif for prose surfaces, monospace for
data. Bearer-token auth, OpenRouter monthly cost cap, RSS feeds auto-
disabled on consecutive failures.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/templates/dashboard.html

@@ -0,0 +1,77 @@
+{% extends "base.html" %}
+{% block title %}Cassandra · Dashboard{% endblock %}
+
+{% block main %}
+<section id="indicators-panel" class="panel">
+  <div class="panel-header">
+    <span class="title">Indicators</span>
+    <span class="meta">{% if anchor %}anchor {{ anchor }} · {% endif %}ingest hourly @ :05 UTC</span>
+  </div>
+  <div class="group-tabs" id="group-tabs">
+    {% for g in groups %}
+    <button
+      class="{% if loop.first %}active{% endif %}"
+      hx-get="/api/indicators/{{ g }}?as=html"
+      hx-target="#indicators-body"
+      hx-trigger="click"
+      onclick="document.querySelectorAll('#group-tabs button').forEach(b=>b.classList.remove('active'));this.classList.add('active')"
+    >{{ g }}</button>
+    {% endfor %}
+  </div>
+  <div id="indicators-body"
+       class="panel-body panel-body--scroll"
+       hx-get="/api/indicators/{{ groups[0] }}?as=html"
+       hx-trigger="load"
+       hx-swap="innerHTML">
+    <div class="empty">loading…</div>
+  </div>
+</section>
+<script>
+  // Auto-refresh the *currently selected* group every 60s by simulating a
+  // click on the active tab. Replaces the hard-coded `every 60s` on
+  // #indicators-body which always re-fetched groups[0].
+  setInterval(function () {
+    var active = document.querySelector('#group-tabs button.active');
+    if (active) active.click();
+  }, 60000);
+</script>
+
+<section id="portfolio-panel" class="panel">
+  <div class="panel-header">
+    <span class="title">Portfolio</span>
+    <span class="meta">ingest hourly @ :15 UTC</span>
+  </div>
+  <div class="panel-body"
+       hx-get="/api/portfolios?as=html"
+       hx-trigger="load, every 60s"
+       hx-swap="innerHTML">
+    <div class="empty">loading…</div>
+  </div>
+</section>
+
+<section id="log-panel" class="panel">
+  <div class="panel-header">
+    <span class="title">Strategic Log</span>
+    <span class="meta">generated hourly @ :20 UTC</span>
+  </div>
+  <div class="panel-body"
+       hx-get="/api/log/latest?as=html"
+       hx-trigger="load, every 300s"
+       hx-swap="innerHTML">
+    <div class="empty">awaiting first log…</div>
+  </div>
+</section>
+
+<section id="news-panel" class="panel">
+  <div class="panel-header">
+    <span class="title">Flash News</span>
+    <span class="meta">last 24h · ingest hourly @ :10 UTC</span>
+  </div>
+  <div class="panel-body panel-body--scroll"
+       hx-get="/api/news?as=html&limit=40"
+       hx-trigger="load, every 60s"
+       hx-swap="innerHTML">
+    <div class="empty">loading…</div>
+  </div>
+</section>
+{% endblock %}