feat: thought loop reach-out (ntfy push) + external input feeds

Her remaining two wishes from the 6-19 sketch:

Proactive reach-out (#6, literal): lyra/notify.py pushes to ntfy so she can reach
Brian when he's not in the app. thoughts.maybe_ping gates on salience, a cooldown,
and local quiet hours (all config-tunable; eager defaults), uses ntfy JSON publish
(UTF-8 titles/messages), links to /thoughts, and marks the thread surfaced so chat
won't also re-raise it. Disabled unless NTFY_URL is set.

External input feed (#1): lyra/feeds.py pulls configurable RSS/Atom feeds (stdlib
ElementTree, no new dep; tolerant of RSS 2.0 + Atom), dedupes seen items in a
feed_items table, and hands think() one fresh item at a time. New 'react' mode:
a would-be new thread instead reacts to a world item (FEED_REACT_PROB). Dream
cycle refreshes feeds on its cadence; failures degrade to no item.

Config: NTFY_URL/NTFY_TOPIC/LYRA_WEB_URL, PING_SALIENCE/COOLDOWN/QUIET_HOURS,
LYRA_TIMEZONE, LYRA_FEEDS, FEED_REACT_PROB (+ .env.example). thought_meta table
for ping cooldown. 10 new tests (feeds parse, react mode, ping gating); suite 65.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lyra/feeds.py

@@ -0,0 +1,133 @@
+"""External input stream: RSS/Atom feeds Lyra reacts to (her thought-loop #1).
+
+Her own sketch wanted the loop fed by "external data feeds relevant to your
+interests (poker articles, tech news)" — so her thoughts aren't only about her own
+interior. This pulls configured feeds, remembers what it's seen, and hands the
+thought loop one fresh item at a time to react to (see `thoughts.think` react mode).
+
+Feeds are configurable (`LYRA_FEEDS`, comma-separated URLs). Parsing is stdlib
+ElementTree — tolerant of both RSS 2.0 and Atom, namespaces stripped — so there's
+no new dependency. Network failures degrade to "no item this pass", never raise.
+"""
+from __future__ import annotations
+
+from xml.etree import ElementTree as ET
+
+import httpx
+
+from lyra import clock, config, logbus, memory
+
+_SCHEMA = """
+CREATE TABLE IF NOT EXISTS feed_items (
+    id TEXT PRIMARY KEY,        -- guid/link, stable per item
+    feed TEXT,
+    title TEXT,
+    link TEXT,
+    summary TEXT,
+    seen_at TEXT NOT NULL,
+    used INTEGER NOT NULL DEFAULT 0
+);
+CREATE INDEX IF NOT EXISTS idx_feed_items_used ON feed_items(used);
+"""
+
+_ensured_for = None
+_UA = {"User-Agent": "Lyra/0.3 (+thought-loop feed reader)"}
+_MAX_SUMMARY = 600
+
+
+def _c():
+    global _ensured_for
+    conn = memory._connection()
+    if _ensured_for is not conn:
+        conn.executescript(_SCHEMA)
+        _ensured_for = conn
+    return conn
+
+
+def _local(tag: str) -> str:
+    return tag.rsplit("}", 1)[-1].lower()
+
+
+def _text(el) -> str:
+    return (el.text or "").strip() if el is not None else ""
+
+
+def parse(xml: bytes, feed_url: str = "") -> list[dict]:
+    """Tolerant RSS-2.0 / Atom parse -> [{id,title,link,summary}]. Empty on garbage."""
+    try:
+        root = ET.fromstring(xml)
+    except ET.ParseError:
+        return []
+    items: list[dict] = []
+    for node in root.iter():
+        if _local(node.tag) not in ("item", "entry"):
+            continue
+        title = link = summary = guid = ""
+        for child in node:
+            name = _local(child.tag)
+            if name == "title":
+                title = _text(child)
+            elif name == "link":
+                # RSS: text; Atom: href attribute (prefer rel=alternate / first)
+                link = _text(child) or child.attrib.get("href", "") or link
+            elif name in ("description", "summary", "content"):
+                summary = summary or _text(child)
+            elif name in ("guid", "id"):
+                guid = _text(child)
+        ident = guid or link or title
+        if not ident or not (title or summary):
+            continue
+        items.append({
+            "id": ident, "title": title, "link": link,
+            "summary": summary[:_MAX_SUMMARY],
+        })
+    return items
+
+
+def fetch(url: str) -> list[dict]:
+    try:
+        r = httpx.get(url, headers=_UA, timeout=10.0, follow_redirects=True)
+        if r.status_code >= 400:
+            logbus.log("error", "feed fetch failed", url=url, status=r.status_code)
+            return []
+        return parse(r.content, url)
+    except Exception as exc:
+        logbus.log("error", "feed fetch error", url=url, error=str(exc)[:160])
+        return []
+
+
+def refresh() -> int:
+    """Pull all configured feeds; store items not seen before. Returns new count."""
+    cfg = config.load()
+    conn = _c()
+    now = clock.now().isoformat()
+    new = 0
+    for url in cfg.feeds:
+        for it in fetch(url):
+            with conn:
+                cur = conn.execute(
+                    "INSERT OR IGNORE INTO feed_items (id, feed, title, link, summary, seen_at) "
+                    "VALUES (?, ?, ?, ?, ?, ?)",
+                    (it["id"], url, it["title"], it["link"], it["summary"], now),
+                )
+            new += cur.rowcount
+    if new:
+        logbus.log("info", "feeds refreshed", new_items=new)
+    return new
+
+
+def next_item(refresh_first: bool = True) -> dict | None:
+    """One fresh (unused) feed item, newest-seen first. Caller marks it used."""
+    if refresh_first:
+        refresh()
+    row = _c().execute(
+        "SELECT id, feed, title, link, summary FROM feed_items "
+        "WHERE used = 0 ORDER BY seen_at DESC, rowid DESC LIMIT 1"
+    ).fetchone()
+    return dict(row) if row else None
+
+
+def mark_used(item_id: str) -> None:
+    conn = _c()
+    with conn:
+        conn.execute("UPDATE feed_items SET used = 1 WHERE id = ?", (item_id,))