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/config.py

@@ -25,6 +25,22 @@ class Config:
     embed_base_url: str  # Ollama endpoint for embeddings (own box, decoupled from local chat)
     summary_backend: str  # "local" or "cloud" — backend used to compact memory
     db_path: Path
+    # Proactive reach-out (ntfy push). Empty ntfy_url disables pinging.
+    ntfy_url: str          # base url, e.g. "http://10.0.0.41:8090"
+    ntfy_topic: str        # topic to publish to, e.g. "lyra"
+    web_url: str           # base url of the Lyra web app, for push tap-through links
+    timezone: str          # IANA tz for quiet hours / local time
+    ping_salience: float   # min thought salience to push (eager = ~0.7)
+    ping_cooldown_min: int  # min minutes between pushes (eager = 0)
+    ping_quiet_hours: str  # local "start-end" 24h window to stay silent, e.g. "1-9"
+    # External input feed (her #1: react to the world). Comma-separated RSS/Atom URLs.
+    feeds: tuple[str, ...]
+    feed_react_prob: float  # chance a would-be new thread reacts to a feed item instead
+
+
+def _csv(name: str, default: str) -> tuple[str, ...]:
+    raw = os.getenv(name, default)
+    return tuple(u.strip() for u in raw.split(",") if u.strip())
 
 
 def load() -> Config:
@@ -44,4 +60,13 @@ def load() -> Config:
         embed_base_url=os.getenv("EMBED_BASE_URL", os.getenv("LOCAL_BASE_URL", "http://localhost:11434")),
         summary_backend=os.getenv("SUMMARY_BACKEND", "local").lower(),
         db_path=Path(os.getenv("LYRA_DB_PATH", "data/lyra.db")),
+        ntfy_url=os.getenv("NTFY_URL", "").rstrip("/"),
+        ntfy_topic=os.getenv("NTFY_TOPIC", "lyra"),
+        web_url=os.getenv("LYRA_WEB_URL", "").rstrip("/"),
+        timezone=os.getenv("LYRA_TIMEZONE", "America/New_York"),
+        ping_salience=float(os.getenv("PING_SALIENCE", "0.7")),
+        ping_cooldown_min=int(os.getenv("PING_COOLDOWN_MIN", "0")),
+        ping_quiet_hours=os.getenv("PING_QUIET_HOURS", "1-9"),
+        feeds=_csv("LYRA_FEEDS", "https://hnrss.org/frontpage,https://www.pokernews.com/rss.php"),
+        feed_react_prob=float(os.getenv("FEED_REACT_PROB", "0.5")),
     )