* feat: add JSON Schema for agent-browser config files
Adds agent-browser.schema.json describing all config options with
types and descriptions. Enables IDE autocomplete and validation when
referenced via $schema in agent-browser.json or
~/.agent-browser/config.json.
README and docs site updated to document the schema reference.
* fix(schema): use integer type for maxOutput to match usize deserialization
Co-authored-by: vercel[bot] <35613825+vercel[bot]@users.noreply.github.com>
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Co-authored-by: vercel[bot] <35613825+vercel[bot]@users.noreply.github.com>
