fix(login): forteaza --window-size=1920,1080 la lansarea Chromium

In Windows Service (session 0, fara display) viewport-ul setat pe context
Playwright nu se propaga la fereastra fizica. BT afiseaza splash de redirect
sub ~1100px, ascunzand input#user si provocand timeout la wait_for_selector.
Adauga --window-size in args ca sa forteze dimensiunea la nivel de SO.

Ignora si .claude/ si .playwright-mcp/ (artefacte tooling local).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -23,3 +23,7 @@ logs/*.log
 # OS
 .DS_Store
 Thumbs.db
+
+# Tooling
+.claude/
+.playwright-mcp/