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/dream.py

@@ -25,7 +25,7 @@ import argparse
 import time
 from datetime import datetime, timezone
 
-from lyra import config, era, logbus, memory, narrative, profile, self_state, summary, thoughts
+from lyra import config, era, feeds, logbus, memory, narrative, profile, self_state, summary, thoughts
 from lyra.llm import Backend
 from lyra.summary import SUMMARIZE_AFTER
 
@@ -81,6 +81,12 @@ def dream_cycle(backend: Backend | None = None, force: bool = False) -> dict:
     # Thought-loop housekeeping (no LLM): rest stale threads so the open-thread cap
     # never jams and the feed stays current. Cheap; run every pass.
     thoughts.decay()
+    # Pull external feeds on the cycle cadence (~30 min) so she has fresh items from
+    # the world to react to. Network-only; failures degrade to no new items.
+    try:
+        feeds.refresh()
+    except Exception as exc:
+        logbus.log("error", "feed refresh failed", error=str(exc)[:160])
 
     actions: list[str] = []