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>

tests/test_news_parsing.py

@@ -0,0 +1,53 @@
+"""Pure-function tests for app.services.news."""
+from __future__ import annotations
+
+import pytest
+
+pytest.importorskip("httpx")
+
+from datetime import datetime, timezone
+from pathlib import Path
+
+from app.services.news import Headline, _parse_date, dedupe, parse_feed
+
+
+FIXTURE = Path(__file__).parent / "fixtures" / "rss_sample.xml"
+
+
+def test_parse_feed_returns_real_items_only():
+    items = parse_feed("Sample", "world", FIXTURE.read_bytes())
+    titles = [h.title for h in items]
+    assert "Brent crude jumps on Hormuz uncertainty" in titles
+    assert "Fed signals caution as inflation re-accelerates" in titles
+    # Empty-title row is dropped.
+    assert all(t for t in titles)
+
+
+def test_parse_feed_uses_rfc822_dates():
+    items = parse_feed("Sample", "world", FIXTURE.read_bytes())
+    when = items[0].when
+    assert when.tzinfo is not None
+    assert when.year == 2026
+
+
+def test_parse_date_atom_iso():
+    d = _parse_date("2026-05-15T12:34:56Z")
+    assert d == datetime(2026, 5, 15, 12, 34, 56, tzinfo=timezone.utc)
+
+
+def test_headline_fingerprint_is_normalised():
+    h1 = Headline(datetime.now(timezone.utc), "S1", "c", " Hello   WORLD ", "u1")
+    h2 = Headline(datetime.now(timezone.utc), "S2", "c", "hello world",     "u2")
+    assert h1.fingerprint == h2.fingerprint
+
+
+def test_dedupe_keeps_first_by_url_or_title():
+    t = datetime.now(timezone.utc)
+    hs = [
+        Headline(t, "A", "c", "Same headline", "https://a.example/1"),
+        Headline(t, "B", "c", "Same headline", "https://b.example/2"),  # title dupe
+        Headline(t, "C", "c", "Other",         "https://a.example/1"),  # url dupe
+        Headline(t, "D", "c", "Fresh",         "https://d.example"),
+    ]
+    out = dedupe(hs)
+    assert [h.source for h in out] == ["A", "D"]