expose single action, deprecate aiAction in favor of perform()

[Dingway98]

Note

Introduce page.perform for single a11y actions, deprecating aiAction (kept as alias), with types/docs updates, retry handling, and version bump.

• API:
  • Add page.perform() for single, granular a11y actions; keep page.aiAction() as a deprecated alias in src/agent/index.ts.
  • Expose executeSingleAction as public and wire through a retry wrapper to handle tab/page switches.
• Types:
  • Update HyperPage interface to include perform() and mark aiAction() as deprecated in src/types/agent/types.ts.
• Docs:
  • Replace aiAction usage with perform across README examples and guidance; note deprecation.
• Internals:
  • Add page-switch retry logic for single actions; improve error handling paths.
• Version:
  • Bump package version to 1.0.8 in package.json.

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[AHarmlessPyro]

bump major version to 1.1.0?