v0.4.0 — tab management
Added
web-view tab new/close/switch — tab-lifecycle CLI family under a single tab parent.
tab new [--url]opens a tab (about:blankby default).tab close --tab <index|substring>closes a tab.--tabis required because closing is destructive (no implicit default).tab switch [--tab <index|substring>]brings a tab to the front; defaults to the first non-helper tab.
Every verb accepts --port (auto-resolves like navigate/snap/stop) and --quiet/-q. Tab selection mirrors navigate (0-based index, negatives allowed, or URL substring). Thin pass-through over the existing cdp.open_tab / cdp.close_tab / cdp.switch_to_tab helpers. Root command list now at 8 (the ADR 0001 cap).
Closes #9.