fix(models): support minimax-portal coding plan vlm routing for image tool (openclaw#33953)

Verified:
- pnpm install --frozen-lockfile
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: tars90percent <252094836+tars90percent@users.noreply.github.com>

CHANGELOG.md

@@ -134,6 +134,7 @@ Docs: https://docs.openclaw.ai
 - Routing/legacy route guard tightening: require legacy session-key channel hints to match the saved delivery channel before inheriting external routing metadata, preventing custom namespaced keys like `agent:<agent>:work:<ticket>` from inheriting stale non-webchat routes.
 - Gateway/internal client routing continuity: prevent webchat/TUI/UI turns from inheriting stale external reply routes by requiring explicit `deliver: true` for external delivery, keeping main-session external inheritance scoped to non-Webchat/UI clients, and honoring configured `session.mainKey` when identifying main-session continuity. (from #35321, #34635, #35356) Thanks @alexyyyander and @Octane0411.
 - Security/auth labels: remove token and API-key snippets from user-facing auth status labels so `/status` and `/models` do not expose credential fragments. (#33262) thanks @cu1ch3n.
+- Models/MiniMax portal vision routing: add `MiniMax-VL-01` to the `minimax-portal` provider, route portal image understanding through the MiniMax VLM endpoint, and align media auto-selection plus Telegram sticker description with the shared portal image provider path. (#33953) Thanks @tars90percent.
 - Auth/credential semantics: align profile eligibility + probe diagnostics with SecretRef/expiry rules and harden browser download atomic writes. (#33733) thanks @joshavant.
 - Security/audit denyCommands guidance: suggest likely exact node command IDs for unknown `gateway.nodes.denyCommands` entries so ineffective denylist entries are easier to correct. (#29713) thanks @liquidhorizon88-bot.
 - Agents/overload failover handling: classify overloaded provider failures separately from rate limits/status timeouts, add short overload backoff before retry/failover, record overloaded prompt/assistant failures as transient auth-profile cooldowns (with probeable same-provider fallback) instead of treating them like persistent auth/billing failures, and keep one-shot cron retry classification aligned so overloaded fallback summaries still count as transient retries.