feat: configurable ticker window for market stats (1h, 4h, 1d)

- Replace hardcoded ticker_24h with ticker_stats supporting configurable window
- Add -w/--window flag to `market tickers` (choices: 1h, 4h, 1d, default 1d)
- Update TUI title and JSON output to include window field
- Keep opportunity/pf service on 1d default
- Sync tests and doc comments

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

src/coinhunter/runtime.py

@@ -278,7 +278,7 @@ def _render_tui(payload: Any) -> None:
                 ]
             )
         _print_box_table(
-            "24H TICKERS",
+            f"TICKERS   window={payload.get('window', '1d')}",
             ["Symbol", "Last Price", "Change %", "Quote Volume"],
             table_rows,
             aligns=["left", "right", "right", "right"],