fix: extract border label to fix line length lint

Also add CLAUDE.md with lint check reminders.

Author: r4sky0

CLAUDE.md

@@ -0,0 +1,10 @@
+# Development
+
+## Linting
+
+Always check for lint before committing:
+
+```
+uvx ruff check apick.py tests/
+uvx ty check apick.py
+```

apick.py

@@ -245,6 +245,9 @@ def pick_endpoint(endpoints: list[dict], spec: dict, script_path: str) -> dict |
         json.dump(spec, spec_file)
         spec_file_name = spec_file.name
 
+    api_title = spec.get("info", {}).get("title")
+    border_label = f" apick — {api_title} " if api_title else " apick "
+
     try:
         preview_cmd = (
             f"{sys.executable} {script_path} --_preview {{1}} --_spec-file {spec_file_name}"
@@ -258,7 +261,7 @@ def pick_endpoint(endpoints: list[dict], spec: dict, script_path: str) -> dict |
                     "--nth", "2..",
                     "--with-nth", "2..",
                     "--border", "rounded",
-                    "--border-label", f" apick — {spec.get('info', {}).get('title', '')} " if spec.get("info", {}).get("title") else " apick ",
+                    "--border-label", border_label,
                     "--pointer", "▶",
                     "--header",
                     "Select an endpoint (type to search)",