feat: add catlog command, agent flag reorder, and TUI polish

- Add `coinhunter catlog` with limit/offset pagination for audit logs
- Optimize audit log reading with deque to avoid loading all history
- Allow `-a/--agent` flag after subcommands
- Fix upgrade spinner artifact and empty line issues
- Render audit log TUI as timeline with low-saturation event colors
- Convert audit timestamps to local timezone in TUI
- Remove futures-related capabilities
- Add conda environment.yml for development
- Bump version to 2.0.9 and update README

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/coinhunter/services/market_service.py

@@ -57,7 +57,9 @@ def get_tickers(config: dict[str, Any], symbols: list[str], *, spot_client: Any)
                 TickerView(
                     symbol=normalize_symbol(ticker["symbol"]),
                     last_price=float(ticker.get("lastPrice") or ticker.get("last_price") or 0.0),
-                    price_change_pct=float(ticker.get("priceChangePercent") or ticker.get("price_change_percent") or 0.0),
+                    price_change_pct=float(
+                        ticker.get("priceChangePercent") or ticker.get("price_change_percent") or 0.0
+                    ),
                     quote_volume=float(ticker.get("quoteVolume") or ticker.get("quote_volume") or 0.0),
                 )
             )

src/coinhunter/services/opportunity_service.py

@@ -26,7 +26,9 @@ def _safe_pct(new: float, old: float) -> float:
     return (new - old) / old
 
 
-def _score_candidate(closes: list[float], volumes: list[float], ticker: dict[str, Any], weights: dict[str, float], concentration: float) -> tuple[float, dict[str, float]]:
+def _score_candidate(
+    closes: list[float], volumes: list[float], ticker: dict[str, Any], weights: dict[str, float], concentration: float
+) -> tuple[float, dict[str, float]]:
     if len(closes) < 2 or not volumes:
         return 0.0, {
             "trend": 0.0,
@@ -158,10 +160,7 @@ def scan_opportunities(
     top_n = int(opportunity_config.get("top_n", 10))
     quote = str(config.get("market", {}).get("default_quote", "USDT")).upper()
     held_positions = get_positions(config, spot_client=spot_client)["positions"]
-    concentration_map = {
-        normalize_symbol(item["symbol"]): float(item["notional_usdt"])
-        for item in held_positions
-    }
+    concentration_map = {normalize_symbol(item["symbol"]): float(item["notional_usdt"]) for item in held_positions}
     total_held = sum(concentration_map.values()) or 1.0
 
     universe = get_scan_universe(config, spot_client=spot_client, symbols=symbols)[:scan_limit]

src/coinhunter/services/trade_service.py

@@ -40,7 +40,9 @@ def _default_dry_run(config: dict[str, Any], dry_run: bool | None) -> bool:
     return bool(config.get("trading", {}).get("dry_run_default", False))
 
 
-def _trade_log_payload(intent: TradeIntent, payload: dict[str, Any], *, status: str, error: str | None = None) -> dict[str, Any]:
+def _trade_log_payload(
+    intent: TradeIntent, payload: dict[str, Any], *, status: str, error: str | None = None
+) -> dict[str, Any]:
     return {
         "market_type": intent.market_type,
         "symbol": intent.symbol,
@@ -125,7 +127,9 @@ def execute_spot_trade(
                 response_payload=response,
             )
         )
-        audit_event("trade_filled", {**_trade_log_payload(intent, payload, status="DRY_RUN"), "response_payload": response})
+        audit_event(
+            "trade_filled", {**_trade_log_payload(intent, payload, status="DRY_RUN"), "response_payload": response}
+        )
         return {"trade": result}
 
     try:
@@ -146,5 +150,7 @@ def execute_spot_trade(
             response_payload=response,
         )
     )
-    audit_event("trade_filled", {**_trade_log_payload(intent, payload, status=result["status"]), "response_payload": response})
+    audit_event(
+        "trade_filled", {**_trade_log_payload(intent, payload, status=result["status"]), "response_payload": response}
+    )
     return {"trade": result}