feat: default port 443 for domain remotes, strip from display (v0.9.4)

- Domain-like --remote endpoints default to port 443; :443 is optional
- _normalize_endpoint strips :443 before storage in remotes.json
- _load_remotes normalises keys on load (backward compat migration)
- _remote_display_name omits :443 for domain endpoints
- _resolve_connect_endpoint adds :443 back for TCP connection

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "browser-cli"
-version = "0.9.3"
+version = "0.9.4"
 description = "Control your real running browser from the terminal via a browser extension"
 requires-python = ">=3.10"
 dependencies = [