fix: give Lyra an accurate self-model of her dream cycle

Live finding: her real reflections ARE injected every turn, but unlabeled — so
when asked about her "dream cycle" she recited the obsolete Dec-2025 spec from
imported memory (NVGRAM/awake-sleep) and confabulated fake example reflections
instead of reading the real ones in front of her.

- self_state.render_for_context: label the reflections as her own autonomously
  generated dream-cycle thoughts ("these are really yours, not hypotheticals"),
  not a vague "on your mind lately"
- persona: describe the dream cycle as her actual running mechanism, instruct
  her to answer from the inner-state block, not recite old design docs, and
  never invent example reflections to demo the feature

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

lyra/self_state.py

@@ -87,7 +87,11 @@ def render_for_context(state: dict) -> str:
         ds = ", ".join(f"{k} {float(v):.2f}" for k, v in drives.items())
         lines.append(f"- What's pulling at you (drives): {ds}")
     if refs:
-        lines.append(f"- On your mind lately: {' | '.join(refs[-3:])}")
+        lines.append(
+            "- Thoughts you came up with on your own, reflecting while idle between "
+            "conversations (your dream cycle — these are really yours, not hypotheticals): "
+            + " | ".join(refs[-3:])
+        )
     return "\n".join(lines)