Field-report ergonomics fixes so agents stop wasting a round on a wrong guess:
- Coordinate click is now first-class: `click <x> <y>`, `click <x>,<y>`,
and `click --coords <x>,<y>` dispatch a raw viewport-point click (no
element resolution), reusing the humanize trajectory + press dwell. Was
previously only reachable via eval(elementFromPoint(...).click()).
- Aliases: `tabs` (plural) → the `tab` subcommand tree; `get-text`/`get_text`
→ `get text <selector>`.
- `find <value> <action>` with a bare value (no locator keyword), e.g.
`find "I'm not a robot" click`, now errors with the corrected command
(`find text "I'm not a robot" click`) plus concrete examples, instead of
a bare "Valid options: role, text, ..." list.
Adds parse-layer regression tests for every form.