fix(dashboard): show the literal new allowlist line in green, no prefix

The "→ would allow host: api.github.com" framing added narration
where none was needed. Just render the host on its own line in
green — that's literally the text that gets appended to pipelock's
allowlist on approve, and the green color carries "what's about to
change". The URL (with path) is still right above for context.

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

claude_bottle/cli/dashboard.py

@@ -637,8 +637,13 @@ def _detail_lines(
     if p.tool == TOOL_PIPELOCK_BLOCK:
         host = _failed_url_host(p.proposed_file)
         if host:
+            # Show the literal line that will be appended to the
+            # bottle's pipelock allowlist on approve. Green so it
+            # reads as "what changes"; the URL above carries the
+            # path context (which pipelock can't enforce — see the
+            # follow-up note on _apply_pipelock_url).
             out.append(("", 0))
-            out.append((f"→ would allow host: {host}", green_attr))
+            out.append((host, green_attr))
     return out