feat(cli): trex-core slots 에 --symbol/--slot-id 필터 + 필터 시 상세 출력

운영자 CLI 의 slots 조회 편의: --symbol, --slot-id 클라이언트 측 필터(--status 와
조합 가능) 추가. 두 필터 중 하나라도 주면 한 줄 요약 대신 슬롯 상세 블록
(status/symbol/portfolio_id/qty/avg_price/limit/allocated_capital/strategy_id/
sell_strategy_id/forced_close_at/universe_detached, holding 이면 watchdog)으로 출력.
필터 없으면 기존 terse 테이블 유지(무회귀).

구조/계약/런타임 흐름 영향 없는 표시 기능. tests/runtime/test_cli_operator.py
필터 4건 추가(24 passed), ruff clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

trex_core/runtime/cli.py

@@ -140,19 +140,62 @@ def _cmd_slots(args, cfg, rpc) -> int:
                  if s.get("status") == "inactive" and not s.get("universe_detached")]
     elif status == "pending":
         slots = [s for s in slots if s.get("status") in ("pending_buy", "pending_sell")]
+    # --symbol / --slot-id: client-side filters (composable with --status).
+    if args.symbol:
+        slots = [s for s in slots if s.get("symbol") == args.symbol]
+    if args.slot_id:
+        slots = [s for s in slots if s.get("slot_id") == args.slot_id]
     # dcy-017: holding-slot watchdog state (strategy-absent ownership).
     owned = {w.get("portfolio_id") for w in resp.get("watchdog", []) if w.get("expired")}
+    wd_by_slot = {w.get("slot_id"): w for w in resp.get("watchdog", [])}
     if args.json:
         _emit({"instance": instance, "status": status, "slots": slots}, as_json=True)
     else:
-        print(f"instance={instance} status={status} count={len(slots)} "
+        header = f"instance={instance} status={status}"
+        if args.symbol:
+            header += f" symbol={args.symbol}"
+        if args.slot_id:
+            header += f" slot_id={args.slot_id}"
+        print(f"{header} count={len(slots)} "
               f"watchdog_owned={len([s for s in slots if s.get('portfolio_id') in owned])}")
-        for s in slots:
-            pid = s.get("portfolio_id")
-            tag = "  [WATCHDOG-OWNED: strategy absent]" if pid in owned else ""
-            print(f"  {s.get('slot_id')}\t{s.get('status')}\t{s.get('symbol')}\t"
-                  f"qty={s.get('qty')}\tlimit={s.get('entry_price')}\t"
-                  f"avg={s.get('avg_price')}\tpid={s.get('portfolio_id')}{tag}")
+        # When filtered (--symbol / --slot-id), print a detailed per-slot block;
+        # otherwise the terse one-line table.
+        if args.symbol or args.slot_id:
+            for s in slots:
+                _print_slot_detail(s, wd_by_slot.get(s.get("slot_id")))
+        else:
+            for s in slots:
+                pid = s.get("portfolio_id")
+                tag = "  [WATCHDOG-OWNED: strategy absent]" if pid in owned else ""
+                print(f"  {s.get('slot_id')}\t{s.get('status')}\t{s.get('symbol')}\t"
+                      f"qty={s.get('qty')}\tlimit={s.get('entry_price')}\t"
+                      f"avg={s.get('avg_price')}\tpid={s.get('portfolio_id')}{tag}")
+    return 0
+
+
+def _print_slot_detail(s: dict, wd: dict | None) -> None:
+    """Verbose per-slot block used when `slots` is filtered (e.g. --symbol)."""
+    fields = [
+        ("status", s.get("status")),
+        ("symbol", s.get("symbol")),
+        ("portfolio_id", s.get("portfolio_id")),
+        ("qty", s.get("qty")),
+        ("avg_price", s.get("avg_price")),
+        ("entry_price (limit)", s.get("entry_price")),
+        ("allocated_capital", s.get("allocated_capital")),
+        ("strategy_id", s.get("strategy_id")),
+        ("sell_strategy_id", s.get("sell_strategy_id")),
+        ("forced_close_at", s.get("forced_close_at")),
+        ("universe_detached", s.get("universe_detached")),
+    ]
+    if wd is not None:
+        fields.append((
+            "watchdog",
+            f"expired={wd.get('expired')} last_seen={wd.get('last_seen')}",
+        ))
+    print(f"slot {s.get('slot_id')}")
+    for label, value in fields:
+        print(f"  {label:<20}: {value}")
     return 0
 
 
@@ -290,6 +333,10 @@ def _build_parser() -> argparse.ArgumentParser:
     p_slots = sub.add_parser("slots", help="List positions (snapshot RPC)")
     p_slots.add_argument("--status", choices=["all", "held", "holding", "buyable", "pending"],
                          default="all")
+    p_slots.add_argument("--symbol", default=None,
+                         help="show only the slot(s) bound to this symbol")
+    p_slots.add_argument("--slot-id", dest="slot_id", default=None,
+                         help="show only the slot with this slot_id")
     _add_common(p_slots)
 
     p_enter = sub.add_parser("enter", help="Submit a buy intent (intent RPC)")