Dispatch UX overhaul, hub control fixes, and 2026.4.12 bumps.

Bumped the OpenClaw repository version marker to 2026.4.12 for the coordinated runtime release cadence.

Aligned container-pinned OpenClaw base version metadata to 2026.4.12 so container/runtime bundles stay in sync.

Standardized bind-token and agent-token prefixes, tightened runtime auth tests, and clarified token behavior across the API docs and OpenAPI references.

Expanded agent discovery coverage and regenerated the OpenAPI markdown companion so Hub integrations have clearer runtime contracts.

Improved failure recovery by rerunning failed execution tasks once, auto-queuing root-cause follow-up remediation runs, and returning clearer Hub result messages.

Resolved Hub control edge cases across wrapped failure routing, queued dispatch auto-resume, profile round-tripping, and task-control capability enforcement.

Refined the Hub interface with broader task/profile coverage, stronger harness and server tests, and layout polish informed by the parallel user-portal review.

Shipped major Dispatch UX upgrades including async task submission, markdown-or-JSON payload editing, queued follow-up panels, and redesigned onboarding and agent-selection flows.

Hardened Hub integration behavior across OpenClaw payload-format wiring, validation errors, local connectivity state, connected-agent refresh settings, and agent emoji parsing.

Expanded the Dispatch surface with AGENTS-strip support, refreshed console copy and branding, horizontal agent cards, Docker packaging, analytics, and broader UI polish.

Corrected Hub snapshot, release, and task-failure response links so site references point at the current Molten Hub destinations.

Published another `/code` knowledge-base article with new dispatch, library, prompt, and task-view screenshots plus related page polish.