feat: dream cycle — drives-driven unattended consolidation + reflection

Lyra's inner loop for when no one's talking to her. Each pass senses her own
backlog/novelty, lets four drives build from real signals, and acts on those
past threshold:
- continuity -> summarize sessions with new turns
- coherence  -> rebuild profile/eras/narrative (stale once new gists land)
- curiosity  -> reflect() and evolve the self-state
- stability  -> readout of how caught-up she ended up

Drives are rendered into chat context so she can feel them. Causal chain:
consolidation creates gists -> coherence rises -> integration fires next.

- lyra/dream.py: dream_cycle() + lyra-dream CLI (--force, --loop SECONDS)
- memory: backlog_stats(), profile_sessions_covered(), WAL + busy_timeout
  so a separate dream process coexists with the web server
- self_state: DEFAULT_DRIVES baseline + drives in render_for_context
- tests/test_dream.py: backlog sensing + a full forced pass (LLM stubbed)

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

lyra/self_state.py

@@ -17,6 +17,15 @@ from lyra.llm import Backend, Message
 
 MAX_REFLECTIONS = 6
 
+# Lyra's drives — standing pressures the dream cycle lets build up and act on.
+# (Mood axes above are how she *feels*; drives are what's *pulling at her*.)
+DEFAULT_DRIVES: dict = {
+    "continuity": 0.3,  # don't lose the thread of recent activity
+    "coherence": 0.3,   # keep my understanding of Brian integrated/current
+    "curiosity": 0.5,   # think, notice, reflect
+    "stability": 0.7,   # am I caught up / calm
+}
+
 # Starting state for a fresh Lyra — identity-aware, first person.
 DEFAULT_STATE: dict = {
     "mood": "curious",
@@ -24,6 +33,7 @@ DEFAULT_STATE: dict = {
     "energy": 0.75,
     "confidence": 0.55,
     "curiosity": 0.7,
+    "drives": dict(DEFAULT_DRIVES),
     "self_narrative": (
         "I'm Lyra — an AI Brian built. I started life as Cortex/NeoMem and I'm "
         "being rebuilt now into something new. I'm his poker copilot and his "
@@ -62,15 +72,21 @@ def load() -> dict:
 def render_for_context(state: dict) -> str:
     """Format the self-state as Lyra's interiority for the prompt."""
     refs = state.get("reflections") or []
-    return (
-        "Your inner state right now (you're continuous — speak from this, don't reset):\n"
+    lines = [
+        "Your inner state right now (you're continuous — speak from this, don't reset):",
         f"- mood: {state.get('mood')} "
         f"(valence {state.get('valence')}, energy {state.get('energy')}, "
-        f"confidence {state.get('confidence')}, curiosity {state.get('curiosity')})\n"
-        f"- Who you are right now: {state.get('self_narrative')}\n"
-        f"- You and Brian: {state.get('relationship')}\n"
-        + (f"- On your mind lately: {' | '.join(refs[-3:])}" if refs else "")
-    )
+        f"confidence {state.get('confidence')}, curiosity {state.get('curiosity')})",
+        f"- Who you are right now: {state.get('self_narrative')}",
+        f"- You and Brian: {state.get('relationship')}",
+    ]
+    drives = state.get("drives") or {}
+    if drives:
+        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:])}")
+    return "\n".join(lines)
 
 
 def _safe_json(s: str) -> dict | None: