fix(lanes): capitalize Vietnamese action-button labels, gitignore .ccam/

action.start/stop/clear/forget/purge/remove/reset in lanes.json (vi)
were lowercase (bắt đầu, dừng...) while every other button label in the
app capitalizes its first letter. Also gitignore /.ccam/ - the local
lane profile that appears in a repo's own working tree only when that
repo is adopted as its own lane (machine-specific runtime config, not
source).

.gitignore

@@ -18,6 +18,10 @@ desktop/assets/icon.iconset/
 *.db-wal
 *.db-shm
 
+# Local lane profile - only present when this repo itself is adopted as a
+# lane (`ccam lanes add --cwd`); machine-specific runtime config, not source.
+/.ccam/
+
 # Environment variables
 .env
 .env.local