style: polish fzf UI with border, pointer, and cleaner search

- Add --nth/--with-nth to hide internal index from display and search
- Add rounded border with labels for endpoint picker and history
- Use ▶ pointer instead of default cursor
- Regenerate demo GIF

Author: r4sky0

apick.py

@@ -255,6 +255,11 @@ def pick_endpoint(endpoints: list[dict], spec: dict, script_path: str) -> dict |
                     "fzf",
                     "--ansi",
                     "--reverse",
+                    "--nth", "2..",
+                    "--with-nth", "2..",
+                    "--border", "rounded",
+                    "--border-label", " apick ",
+                    "--pointer", "▶",
                     "--header",
                     "Select an endpoint (type to search)",
                     "--preview",
@@ -520,10 +525,15 @@ def pick_history_entry(entries: list[dict]) -> dict | None:
                 "fzf",
                 "--ansi",
                 "--reverse",
+                "--nth", "2..",
+                "--with-nth", "2..",
+                "--border", "rounded",
+                "--border-label", " history ",
+                "--pointer", "▶",
                 "--header",
                 "Select a request to replay (type to search)",
                 "--preview",
-                "echo {}",
+                "echo {2..}",
                 "--preview-window",
                 "down:3:wrap",
             ],