v2.7.0

• Intelligent UI viewer: Added a dedicated viewer with a desktop side panel
  and a narrow-screen dialog, plus navigation back to the original message.
  Moving an interface saves pending state before transferring its live runtime;
  failed saves and unconfirmed imports keep it in its current view.

• Interface explanations and repair: Explain, Modify, and supported Repair
  actions prepare editable chat drafts with frozen visible-result context while
  preserving unsent text and attachments. Requests require manual sending and
  recheck source access. Retrying an HTML interface stays local; ordinary chat
  follow-ups can use bounded interface context.

• Explorer v2: Added ordered sections with multiple charts, metrics, tables,
  and controls linked to the same filtered dataset. Backups preserve v2 data;
  older clients keep unsupported definitions quarantined and reject incompatible
  sync data. Current clients can recover valid known v2 definitions while keeping
  unknown or damaged content inactive.

• Deep Research flow: Simplified plan approval with Quick/Standard/Thorough
  choices, compact progress and completion cards, and a report-first reader with
  Report, Sources, and How it was researched tabs. Report questions open in a
  dialog; raw strategy controls, the research map, and steering UI were removed.

• Research recovery: Added safe pre-output retries, provider-specific error
  actions, reviewed starter plans, failed-edit rollback, connection-loss pause,
  and query refunds for temporary search failures, including checkpoint recovery.
  Repeated interruption retains receipts; interrupted archive resumes from saved
  results, and invalid checkpoints stop recovery before dispatch.
  Query reservations are saved before search dispatch, preventing a hard
  refresh during an in-flight request from restoring spent allowance.

• Research follow-ups: Verified report delivery conditionally returns to Auto;
  ordinary follow-ups receive bounded report context. Research more and refresh
  explicitly prepare a new plan, preserving the previous report on failure.
  Compression preserves report references, and mode rollback protects explicit
  user selections while retaining unrelated settings changes.

• Shared controls: Kept research primary actions blue in both themes, fixed
  nested-dialog Escape and select layering, and synchronized session chat modes.

• Provider settings: Switching provider types updates official default Base
  URLs while preserving explicit custom hosts, paths, API versions, ports, and
  query settings. Default detection now compares complete URLs instead of host
  prefixes.

• Dependency security: Updated Hono to 4.13.11 in the application and optional
  MCP bridge, OpenNext Cloudflare to 1.20.2, MCP SDK to 1.32.0, and the Vite test
  dependency to 8.1.6 to address published security advisories. Existing deployed
  applications and bridge images need rebuilding to receive these updates.

• MCP redirect safety: Preserved the SDK's redirect policy in the application
  fetch wrapper so custom credentials, session IDs, and request bodies are not
  resent to another origin. Configure a server's final URL when it redirects
  across hosts or ports, or from HTTPS to HTTP.

• Release verification: Validate matching, non-empty release notes before
  installing dependencies, cover extraction edge cases with regression tests,
  and run the browser smoke suite before publishing a GitHub release.