chore(deps): update ghcr.io/multica-ai/multica-backend docker tag to v0.4.20

[renovate]

This PR contains the following updates:

Package	Update	Change
ghcr.io/multica-ai/multica-backend	patch	v0.4.19 → v0.4.20

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Release Notes

multica-ai/multica (ghcr.io/multica-ai/multica-backend)

v0.4.20

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Changelog

• 3c9b861 MUL-5765 feat(chat): starter cards under Mika's onboarding opening (#​6505)
• 7a7de4f MUL-5773 fix(agent): report kimi token usage from its session wire log (#​6495)
• b24634e MUL-5810: fix(agent): reconcile ACP terminal usage (#​6503)
• 1e60cec chore(daemon): halve the local version-probe frequency to 10 minutes (#​6483)
• 93342d0 docs(changelog): add v0.4.20 release entry (2026-08-06) (MUL-5816) (#​6509)
• eb9302d docs(dingtalk): note community-maintained support status (#​6499)
• 31cd51a feat(daemon): converge on out-of-band multica and agent CLI version changes (MUL-3269)
• c3577cb feat(dingtalk): add DingTalk bot integration (MUL-3958) (#​4829)
• ba129b1 feat(issues): show per-run token usage on the execution log (MUL-5762) (#​6440)
• 128d1d2 feat(notifications): split mentions out of the comments mute group (#​6486)
• b99b04b feat(onboarding): Mika issue-first onboarding (#​6378)
• be20af6 feat(views): mobile comment rails + full-screen keyboard-aware chat (#​6492)
• 96d567d fix(agent): pair failed tool results for OpenCode (MUL-5802) (#​6497)
• 25d26c2 fix(agent): send Pi prompts over stdin (MUL-5779) (#​6485)
• ca2541a fix(agents): explain why a runtime refuses thinking_level (MUL-5770) (#​6447)
• 5a618e0 fix(agents): stop resuming a session that can't resolve its provider auth (MUL-5803) (#​6482)
• 24d2097 fix(channel): attach /issue media to created issues (#​6388)
• 941aa41 fix(daemon): discover models from the custom runtime profile's own binary (#​6488)
• 53122a1 fix(desktop): never fall back to the user's default CLI profile (MUL-5737) (#​6487)
• c622e83 fix(issues): keep the execution log header on one line (MUL-5804) (#​6489)
• 97143f1 fix(issues): keep the usage dialog's content inside the dialog (MUL-5762) (#​6450)
• 854b6c1 fix(issues): loosen thread navigator spacing onto one 14px rail (MUL-5786) (#​6464)
• 8c39b98 fix(issues): tighten the mobile issue-detail gutters to 12px (MUL-5787) (#​6465)
• d6d1996 refactor(daemon): retire the generic no-reply rule — ordinary agents always post one comment (MUL-5442) (#​6493)
• f44df04 refactor(daemon): rewrite the Output section to its judgment form (MUL-5442) (#​6425)
• 62a2d70 refactor(daemon): stage-2 — Mentions and Comment Formatting judgment rewrite (MUL-5442) (#​6453)
• 7bc1e3c test(agent): make OpenClaw EOF test deterministic (MUL-5802) (#​6501)

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