Add Arc-context-aware command/query discovery and gating in Lens options

[Copilot]

Lens currently depends on a manually configured Arc base URL, which breaks the expected Arc flow and exposes Commands/Queries even when the current page is not an Arc app. This change makes Lens context-aware by detecting Arc context from the active page and driving command/query availability from that snapshot.

• Arc context capture from active page

  • Added page-context detection via React fiber traversal to identify Arc context (reconnectQueries marker) and derive base URL (fallback: page origin).
  • Captured context is stored in chrome.storage.session for options-page consumption.
  • Added scripting permission to support active-tab script execution.

• Options UI now gated by Arc availability

  • Commands/Queries tabs are rendered only when Arc context is present.
  • When Arc context is missing, options shows a warning banner: not an Arc application.
  • Tab resolution was updated to avoid invalid tab states when Arc-only tabs disappear.

• Commands/Queries panels now context-driven

  • Removed manual URL entry requirement in these panels.
  • Panels consume detected Arc base URL and introspect directly via:
    • GET {baseUrl}/.cratis/commands
    • GET {baseUrl}/.cratis/queries
  • Introduced shared constant for Arc-context-unavailable messaging to keep UX consistent.

• Arc settings and docs alignment

  • Arc settings now clarifies that Commands/Queries use detected Arc context.
  • Existing Arc base URL field remains as header-injection scope configuration.
  • Local development docs updated to instruct opening Lens on an Arc page before using Commands/Queries.

const [executionResult] = await chrome.scripting.executeScript({
    target: { tabId: activeTab.id },
    world: 'MAIN',
    func: detectArcContextFromPage,
});

// Arc provider found => baseUrl from configuration or page origin
const baseUrl = getConfiguredBaseUrl(configuration, pageOrigin) ?? pageOrigin;

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• www.cratis.io
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)