feat: direct REST endpoints for stack/buyin/start-session (no LLM)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G796GsLCvJQKVN7hwV2cDx

lyra/web/server.py

@@ -121,6 +121,49 @@ def create_app() -> FastAPI:
         logbus.log("info", "session edited", id=session_id, fields=list(body))
         return {"ok": s is not None, "session": s}
 
+    @app.post("/session/stack")
+    async def session_log_stack(request: Request) -> dict:
+        """Log Brian's current stack directly (no LLM). Server-stamps the time."""
+        body = await request.json()
+        try:
+            amount = float(body.get("amount"))
+        except (TypeError, ValueError):
+            return {"ok": False, "error": "amount must be a number"}
+        note = (body.get("note") or "").strip() or None
+        try:
+            state = await asyncio.to_thread(poker.log_stack, amount, note)
+        except ValueError as exc:
+            return {"ok": False, "error": str(exc)}
+        logbus.log("info", "stack logged (direct)", amount=amount)
+        return {"ok": True, "stack": state}
+
+    @app.post("/session/buyin")
+    async def session_add_buyin(request: Request) -> dict:
+        """Add a buy-in/rebuy directly (no LLM)."""
+        body = await request.json()
+        try:
+            amount = float(body.get("amount"))
+        except (TypeError, ValueError):
+            return {"ok": False, "error": "amount must be a number"}
+        try:
+            total = await asyncio.to_thread(poker.add_buyin, amount)
+        except ValueError as exc:
+            return {"ok": False, "error": str(exc)}
+        logbus.log("info", "buyin added (direct)", amount=amount)
+        return {"ok": True, "buy_in_total": total}
+
+    @app.post("/session")
+    async def session_start(request: Request) -> dict:
+        """Open a new live session directly (no LLM)."""
+        body = await request.json()
+        sid = await asyncio.to_thread(lambda: poker.start_session(
+            venue=body.get("venue"), stakes=body.get("stakes"),
+            game=body.get("game") or "NLH", fmt=body.get("format") or "cash",
+            buy_in=body.get("buy_in") or 0, mantra=body.get("mantra"),
+        ))
+        logbus.log("info", "poker session started (direct)", id=sid)
+        return {"ok": True, "id": sid}
+
     @app.delete("/session/entry/{kind}/{entry_id}")
     async def delete_entry(kind: str, entry_id: int) -> dict:
         """Delete one HUD entry (hand | stack | read | ritual) by id."""