- Plugin SDK: add bundled-plugin session actions, `sendSessionAttachment`, and Cron-backed `scheduleSessionTurn`/tag cleanup under the grouped session namespace. Replaces #75578/#75581/#75588 and part of #73384/#74483. Thanks @100yenadmin.

- Plugin SDK/media-understanding: add `extractStructuredWithModel(...)` plus the optional provider-side `extractStructured(...)` seam so trusted plugins can run bounded image-first structured extraction with optional supplemental text context through provider-owned runtimes such as Codex.

- Exec approvals: add `tools.exec.commandHighlighting` so parser-derived command highlighting in approval prompts can be enabled globally or per agent. (#79348) Thanks @jesse-merhi.

### Fixes

- Config/Nix: keep startup-derived plugin enablement, gateway auth tokens, control UI origins, and owner-display secrets runtime-only instead of rewriting `openclaw.json`; in Nix mode, config writers, mutating `openclaw update`, plugin lifecycle mutators, and doctor repair/token-generation now refuse with agent-first nix-openclaw guidance. (#78047) Thanks @joshp123.

- Plugin SDK: add a generic `api.runtime.llm.complete` host completion helper with runtime-derived caller attribution, config-gated model/agent overrides, session-bound context-engine access, request-scoped config, audit metadata, and normalized usage attribution. (#64294) Thanks @DaevMithran.

- Control UI/exec approvals: highlight parsed shell command fragments that may deserve extra review in approval prompts. (#77153) Thanks @jesse-merhi.

- Channels/iMessage: honor `channels.imessage.groups.<chat_id>.systemPrompt` (and the `groups["*"]` wildcard) by forwarding it as `GroupSystemPrompt` on inbound group turns, mirroring the byte-identical resolver semantic from WhatsApp where defining the key as an empty string on a specific group suppresses the wildcard fallback. Brings iMessage to parity with the per-group `systemPrompt` pattern already supported by Discord, Telegram, IRC, Slack, GoogleChat, and the retired BlueBubbles channel. Fixes #78285. (#79383) Thanks @omarshahine.

- iMessage: add opt-in inbound catchup that replays messages received while the gateway was offline (crash, restart, mac sleep) on next startup. Enable with `channels.imessage.catchup.enabled: true`; tunables for `maxAgeMinutes`, `perRunLimit`, `firstRunLookbackMinutes`, and `maxFailureRetries`. Persists a per-account cursor under the OpenClaw state dir (`<openclawStateDir>/imessage/catchup/`), replays each row through the live dispatch path so allowlists/group policy/dedupe behave identically on replayed and live messages, and force-advances past wedged guids after `maxFailureRetries` to prevent stuck cursors. Extends the persisted echo-cache retention window so the agent's own outbound rows from before a gap are not re-fed as inbound on replay. Includes a regenerated `src/config/bundled-channel-config-metadata.generated.ts` so the runtime AJV schema accepts the new `channels.imessage.catchup` block. Fixes #78649. (#79387) Thanks @omarshahine.

- Channels/Yuanbao: bump the bundled `openclaw-plugin-yuanbao` npm spec from `2.11.0` to `2.13.0` in the official external channel catalog and refresh the pinned integrity hash, so fresh installs and catalog-driven reinstalls pick up the newer Yuanbao channel plugin release. (#79620) Thanks @loongfay.