feat: thought loop closer to her vision — wander grist, continuity, seeding, lifecycle

Four additions so the loop is "more what she wanted" (think to herself, unprompted):

- Wander grist (#1): think() new-thread mode now draws the same varied seeds
  reflect() uses (self_state.wander_seed: own curiosity/existence/disagreement or
  a resurfaced memory) + an anti-restate block of her recent thoughts + a list of
  existing open-thread titles to avoid. Directly counters the RLHF "supportive
  presence serving Brian" drift visible in her first thoughts.
- Continuity: thoughts.context_note() injects her active threads into every chat
  turn, so she's aware of her own ongoing mind and can reference it anytime — not
  only when a thought crosses the surface bar.
- Bidirectional: new think_about tool (in _BASE, all modes) lets her spawn a
  thread from conversation to develop on her own later. Conversations seed her
  solo thinking.
- Lifecycle: thoughts.decay() rests stale active threads (>48h) and decays their
  salience, sparing pending-response ones; runs each dream cycle (no LLM). Frees
  the open-thread cap and keeps the feed current.

Also: thoughts feed no longer wipes a reply you're mid-composing (skip poll
re-render while a textarea is focused/non-empty; force-refresh after send).

61 tests passing, ruff clean.

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

lyra/web/static/thoughts.html

@@ -170,7 +170,8 @@
             method: 'POST', headers: { 'Content-Type': 'application/json' },
             body: JSON.stringify({ text })
           });
-          await load();
+          if (ta) ta.value = '';
+          await load(true);
         } catch (e) { send.disabled = false; send.textContent = 'Send'; }
         return;
       }
@@ -181,7 +182,7 @@
             method: 'POST', headers: { 'Content-Type': 'application/json' },
             body: JSON.stringify({ status: st.dataset.status })
           });
-          await load();
+          await load(true);
         } catch (e) {}
       }
     });
@@ -192,7 +193,15 @@
       ta.style.height = 'auto'; ta.style.height = Math.min(ta.scrollHeight, 140) + 'px';
     });
 
-    async function load(){
+    // Don't blow away a reply you're mid-composing: skip the poll re-render while a
+    // reply box is focused or has text. Explicit reloads (after send/status) force.
+    function composing(){
+      const a = document.activeElement;
+      if (a && a.tagName === 'TEXTAREA' && root.contains(a)) return true;
+      return Array.from(root.querySelectorAll('textarea')).some(t => t.value.trim());
+    }
+    async function load(force){
+      if (!force && composing()) return;
       try {
         const r = await fetch('/thoughts/data', { cache: 'no-store' });
         threads = (await r.json()).threads || [];
@@ -201,9 +210,9 @@
         root.innerHTML = '<p class="empty">Couldn\'t reach her thoughts. Is the server up?</p>';
       }
     }
-    load();
-    setInterval(load, 20000);
-    document.addEventListener('visibilitychange', () => { if (!document.hidden) load(); });
+    load(true);
+    setInterval(() => load(false), 20000);
+    document.addEventListener('visibilitychange', () => { if (!document.hidden) load(false); });
   </script>
   <script src="/nav.js"></script>
 </body>